diff --git a/CODEOWNERS b/CODEOWNERS
index 7e263a4514..db9dcccd7f 100644
--- a/CODEOWNERS
+++ b/CODEOWNERS
@@ -502,6 +502,7 @@ esphome/components/shelly_dimmer/* @edge90 @rnauber
 esphome/components/sht3xd/* @mrtoy-me
 esphome/components/sht4x/* @sjtrny
 esphome/components/shutdown/* @esphome/core @jsuanet
+esphome/components/siemens_ira211/* @fonix232
 esphome/components/sigma_delta_output/* @Cat-Ion
 esphome/components/sim800l/* @glmnet
 esphome/components/sm10bit_base/* @Cossid
diff --git a/esphome/components/remote_base/__init__.py b/esphome/components/remote_base/__init__.py
index e347ee96ff..9cf9493cd0 100644
--- a/esphome/components/remote_base/__init__.py
+++ b/esphome/components/remote_base/__init__.py
@@ -21,6 +21,7 @@ from esphome.const import (
     CONF_DELTA,
     CONF_DEVICE,
     CONF_FAMILY,
+    CONF_FAN_MODE,
     CONF_FORCE_UPDATE,
     CONF_GROUP,
     CONF_HUMIDITY,
@@ -30,6 +31,7 @@ from esphome.const import (
     CONF_KEY,
     CONF_LEVEL,
     CONF_MAGNITUDE,
+    CONF_MODE,
     CONF_NBITS,
     CONF_ONE,
     CONF_PROTOCOL,
@@ -2771,3 +2773,94 @@ register_protocol_action(
     (CONF_COMMAND, "command", cg.uint8),
     validate=_toto_default_repeat,
 )
+
+
+# IRA211
+(
+    IRA211Data,
+    IRA211BinarySensor,
+    IRA211Trigger,
+    _,
+    IRA211Dumper,
+) = declare_protocol("IRA211")
+
+IRA211CommandEnum = ns.enum("IRA211Command", is_class=True)
+IRA211_COMMANDS = {
+    "TEMP_UP": IRA211CommandEnum.IRA211_COMMAND_TEMP_UP,
+    "TEMP_DOWN": IRA211CommandEnum.IRA211_COMMAND_TEMP_DOWN,
+    "MODE": IRA211CommandEnum.IRA211_COMMAND_MODE,
+    "FAN": IRA211CommandEnum.IRA211_COMMAND_FAN,
+    "POWER": IRA211CommandEnum.IRA211_COMMAND_POWER,
+    "SYNC": IRA211CommandEnum.IRA211_COMMAND_SYNC,
+}
+
+IRA211ModeEnum = ns.enum("IRA211Mode", is_class=True)
+IRA211_MODES = {
+    "PROTECTION": IRA211ModeEnum.IRA211_MODE_PROTECTION,
+    "TIMER": IRA211ModeEnum.IRA211_MODE_TIMER,
+    "COMFORT": IRA211ModeEnum.IRA211_MODE_COMFORT,
+}
+
+IRA211FanEnum = ns.enum("IRA211Fan", is_class=True)
+IRA211_FAN_SPEEDS = {
+    "AUTO": IRA211FanEnum.IRA211_FAN_AUTO,
+    "LOW": IRA211FanEnum.IRA211_FAN_LOW,
+    "MEDIUM": IRA211FanEnum.IRA211_FAN_MEDIUM,
+    "HIGH": IRA211FanEnum.IRA211_FAN_HIGH,
+}
+
+
+def _half_degree_step(value: float) -> float:
+    if value * 2 != int(value * 2):
+        raise cv.Invalid("Temperature must be a multiple of 0.5")
+    return value
+
+
+IRA211_SCHEMA = cv.Schema(
+    {
+        cv.Required(CONF_COMMAND): cv.enum(IRA211_COMMANDS, upper=True),
+        cv.Optional(CONF_TEMPERATURE, default=20): cv.All(
+            cv.float_range(min=5, max=35), _half_degree_step
+        ),
+        cv.Optional(CONF_MODE, default="COMFORT"): cv.enum(IRA211_MODES, upper=True),
+        cv.Optional(CONF_FAN_MODE, default="AUTO"): cv.enum(
+            IRA211_FAN_SPEEDS, upper=True
+        ),
+    }
+)
+
+
+@register_binary_sensor("ira211", IRA211BinarySensor, IRA211_SCHEMA)
+def ira211_binary_sensor(var: MockObj, config: ConfigType) -> None:
+    cg.add(
+        var.set_data(
+            cg.StructInitializer(
+                IRA211Data,
+                ("command", config[CONF_COMMAND]),
+                ("half_degrees", int(config[CONF_TEMPERATURE] * 2)),
+                ("mode", config[CONF_MODE]),
+                ("fan", config[CONF_FAN_MODE]),
+            )
+        )
+    )
+
+
+@register_trigger("ira211", IRA211Trigger, IRA211Data)
+def ira211_trigger(var: MockObj, config: ConfigType) -> None:
+    """The trigger takes no options beyond the automation."""
+
+
+@register_dumper("ira211", IRA211Dumper)
+def ira211_dumper(var: MockObj, config: ConfigType) -> None:
+    """The dumper takes no options."""
+
+
+register_protocol_action(
+    "ira211",
+    "IRA211",
+    IRA211_SCHEMA,
+    (CONF_COMMAND, "command", IRA211CommandEnum),
+    automation.ApplyField(CONF_TEMPERATURE, "data.set_temperature({})", cg.float_),
+    (CONF_MODE, "mode", IRA211ModeEnum),
+    (CONF_FAN_MODE, "fan", IRA211FanEnum),
+)
diff --git a/esphome/components/remote_base/ira211_protocol.cpp b/esphome/components/remote_base/ira211_protocol.cpp
new file mode 100644
index 0000000000..b9cd6ec886
--- /dev/null
+++ b/esphome/components/remote_base/ira211_protocol.cpp
@@ -0,0 +1,292 @@
+#include "ira211_protocol.h"
+#include "esphome/core/hal.h"
+#include "esphome/core/helpers.h"
+#include "esphome/core/log.h"
+
+namespace esphome::remote_base {
+
+ESPHOME_LOG_TAG(TAG, "remote.ira211");
+
+static constexpr uint32_t CARRIER_FREQUENCY = 38000;
+static constexpr uint32_t T_US = 800;
+static constexpr uint32_t HEADER_US = 19 * T_US / 2;  // 7600 us, also the gap that separates frames
+// Midway between the longest data run (9 bits, 7200 us) and the gap, so a gap captured a little short still
+// ends the frame
+static constexpr uint32_t GAP_MIN_US = HEADER_US - T_US / 4;
+static constexpr uint8_t MIN_HALF_DEGREES = static_cast<uint8_t>(IRA211_MIN_TEMPERATURE * 2);
+static constexpr uint8_t MAX_HALF_DEGREES = static_cast<uint8_t>(IRA211_MAX_TEMPERATURE * 2);
+
+static constexpr uint8_t DEVICE_ID = 0x66;
+static constexpr uint8_t BITS_PER_PACKET = 10;
+static constexpr uint8_t MIN_PACKETS = 4;
+static constexpr uint8_t MAX_PACKETS = 7;
+static constexpr uint8_t MAX_BITS = MAX_PACKETS * BITS_PER_PACKET;
+
+// Fields each command carries, in wire order after the command byte: temperature (whole degrees
+// then tenths), mode, fan.
+static constexpr uint8_t FIELD_TEMPERATURE = 1 << 0;
+static constexpr uint8_t FIELD_MODE = 1 << 1;
+static constexpr uint8_t FIELD_FAN = 1 << 2;
+
+struct CommandLayout {
+  IRA211Command command;
+  uint8_t fields;
+};
+
+static const CommandLayout LAYOUTS[] PROGMEM = {
+    {IRA211Command::IRA211_COMMAND_TEMP_UP, FIELD_TEMPERATURE},
+    {IRA211Command::IRA211_COMMAND_TEMP_DOWN, FIELD_TEMPERATURE},
+    {IRA211Command::IRA211_COMMAND_MODE, FIELD_MODE},
+    {IRA211Command::IRA211_COMMAND_FAN, FIELD_FAN},
+    {IRA211Command::IRA211_COMMAND_POWER, FIELD_TEMPERATURE | FIELD_MODE | FIELD_FAN},
+    {IRA211Command::IRA211_COMMAND_SYNC, FIELD_TEMPERATURE | FIELD_MODE | FIELD_FAN},
+};
+
+static optional<CommandLayout> find_layout(IRA211Command command) {
+  for (const auto &slot : LAYOUTS) {
+    CommandLayout layout;
+    progmem_memcpy(&layout, &slot, sizeof(layout));
+    if (layout.command == command)
+      return layout;
+  }
+  return {};
+}
+
+// Device ID, command, fields, checksum
+static uint8_t packet_count(const CommandLayout &layout) {
+  return 3 + ((layout.fields & FIELD_TEMPERATURE) ? 2 : 0) + ((layout.fields & FIELD_MODE) ? 1 : 0) +
+         ((layout.fields & FIELD_FAN) ? 1 : 0);
+}
+
+// Value to wire byte and back; the transform is its own inverse
+static uint8_t wire_xform(uint8_t value) { return reverse_bits(static_cast<uint8_t>(~value)); }
+
+static bool is_known_mode(uint8_t value) {
+  switch (static_cast<IRA211Mode>(value)) {
+    case IRA211Mode::IRA211_MODE_PROTECTION:
+    case IRA211Mode::IRA211_MODE_TIMER:
+    case IRA211Mode::IRA211_MODE_COMFORT:
+      return true;
+    default:
+      return false;
+  }
+}
+
+static bool is_known_fan(uint8_t value) {
+  switch (static_cast<IRA211Fan>(value)) {
+    case IRA211Fan::IRA211_FAN_AUTO:
+    case IRA211Fan::IRA211_FAN_LOW:
+    case IRA211Fan::IRA211_FAN_MEDIUM:
+    case IRA211Fan::IRA211_FAN_HIGH:
+      return true;
+    default:
+      return false;
+  }
+}
+
+static uint8_t checksum(const uint8_t *bytes, uint8_t count) {
+  uint8_t sum = count;
+  for (uint8_t i = 0; i < count; i++)
+    sum += reverse_bits(bytes[i]);
+  return reverse_bits(sum);
+}
+
+bool IRA211Data::operator==(const IRA211Data &rhs) const {
+  if (this->command != rhs.command)
+    return false;
+  const optional<CommandLayout> layout = find_layout(this->command);
+  if (!layout.has_value())
+    return true;
+  if ((layout->fields & FIELD_TEMPERATURE) && this->half_degrees != rhs.half_degrees)
+    return false;
+  if ((layout->fields & FIELD_MODE) && this->mode != rhs.mode)
+    return false;
+  return !(layout->fields & FIELD_FAN) || this->fan == rhs.fan;
+}
+
+void IRA211Protocol::encode(RemoteTransmitData *dst, const IRA211Data &data) {
+  const optional<CommandLayout> layout = find_layout(data.command);
+  if (!layout.has_value())
+    return;
+
+  uint8_t bytes[MAX_PACKETS];
+  uint8_t count = 0;
+  bytes[count++] = DEVICE_ID;
+  bytes[count++] = wire_xform(static_cast<uint8_t>(data.command));
+  if (layout->fields & FIELD_TEMPERATURE) {
+    bytes[count++] = wire_xform(data.half_degrees / 2);
+    bytes[count++] = wire_xform((data.half_degrees & 1) ? 5 : 0);
+  }
+  if (layout->fields & FIELD_MODE)
+    bytes[count++] = wire_xform(static_cast<uint8_t>(data.mode));
+  if (layout->fields & FIELD_FAN)
+    bytes[count++] = wire_xform(static_cast<uint8_t>(data.fan));
+  bytes[count] = checksum(bytes, count);
+  count++;
+
+  dst->set_carrier_frequency(CARRIER_FREQUENCY);
+  // Preamble, at most one item per bit, trailing mark and gap
+  dst->reserve(4 + count * BITS_PER_PACKET + 2);
+  dst->item(HEADER_US, T_US);
+  dst->item(T_US, HEADER_US);
+
+  // Each packet is a 1 bit, the byte MSB first, then a 0 bit; runs of equal bits become one mark or space
+  bool level = true;
+  uint32_t run = 0;
+  for (uint8_t p = 0; p < count; p++) {
+    const uint16_t packet = (1 << 9) | (bytes[p] << 1);
+    for (int8_t i = BITS_PER_PACKET - 1; i >= 0; i--) {
+      const bool bit = (packet >> i) & 1;
+      if (bit != level && run != 0) {
+        if (level) {
+          dst->mark(run * T_US);
+        } else {
+          dst->space(run * T_US);
+        }
+        run = 0;
+      }
+      level = bit;
+      run++;
+    }
+  }
+  // Every packet ends with a 0 bit, so the frame ends with a space, closed by a trailing mark
+  dst->space(run * T_US);
+  dst->mark(T_US);
+  dst->space(HEADER_US);
+}
+
+optional<IRA211Data> IRA211Protocol::decode(RemoteReceiveData src) {
+  if (!src.expect_item(HEADER_US, T_US) || !src.expect_item(T_US, HEADER_US))
+    return {};
+
+  // Read bits until the end-of-frame gap, checking packet framing and collecting bytes as they arrive
+  uint8_t bytes[MAX_PACKETS]{};
+  uint8_t bits = 0;
+  while (src.is_valid()) {
+    const int32_t raw = src.peek();
+    const bool is_mark = raw > 0;
+    const uint32_t duration = is_mark ? raw : -raw;
+    // A mark followed by the gap or the end of the data is the trailing mark, not a data bit
+    if (is_mark && (!src.is_valid(1) || src.peek(1) <= -static_cast<int32_t>(GAP_MIN_US)))
+      break;
+    if (!is_mark && duration >= GAP_MIN_US)
+      break;
+    const uint32_t run = (duration + T_US / 2) / T_US;
+    if (run == 0 || bits + run > MAX_BITS)
+      return {};
+    for (uint32_t i = 0; i < run; i++, bits++) {
+      const uint8_t pos = bits % BITS_PER_PACKET;
+      if ((pos == 0 && !is_mark) || (pos == BITS_PER_PACKET - 1 && is_mark))
+        return {};
+      if (pos != 0 && pos != BITS_PER_PACKET - 1) {
+        uint8_t &byte = bytes[bits / BITS_PER_PACKET];
+        byte = (byte << 1) | (is_mark ? 1 : 0);
+      }
+    }
+    src.advance();
+  }
+
+  const uint8_t count = bits / BITS_PER_PACKET;
+  if (bits % BITS_PER_PACKET != 0 || count < MIN_PACKETS || bytes[0] != DEVICE_ID)
+    return {};
+  IRA211Data out{};
+  out.command = static_cast<IRA211Command>(wire_xform(bytes[1]));
+  const optional<CommandLayout> layout = find_layout(out.command);
+  if (!layout.has_value() || packet_count(*layout) != count || checksum(bytes, count - 1) != bytes[count - 1]) {
+    ESP_LOGV(TAG, "Invalid frame (%u bits)", bits);
+    return {};
+  }
+
+  // A checksum-valid frame can still carry values outside what the thermostat accepts
+  uint8_t index = 2;
+  if (layout->fields & FIELD_TEMPERATURE) {
+    const uint8_t whole = wire_xform(bytes[index++]);
+    const uint8_t tenths = wire_xform(bytes[index++]);
+    const uint16_t half_degrees = whole * 2 + (tenths >= 5 ? 1 : 0);
+    if (half_degrees < MIN_HALF_DEGREES || half_degrees > MAX_HALF_DEGREES)
+      return {};
+    out.half_degrees = static_cast<uint8_t>(half_degrees);
+  }
+  if (layout->fields & FIELD_MODE) {
+    const uint8_t mode = wire_xform(bytes[index++]);
+    if (!is_known_mode(mode))
+      return {};
+    out.mode = static_cast<IRA211Mode>(mode);
+  }
+  if (layout->fields & FIELD_FAN) {
+    const uint8_t fan = wire_xform(bytes[index++]);
+    if (!is_known_fan(fan))
+      return {};
+    out.fan = static_cast<IRA211Fan>(fan);
+  }
+  return out;
+}
+
+static const LogString *command_to_string(IRA211Command command) {
+  switch (command) {
+    case IRA211Command::IRA211_COMMAND_TEMP_UP:
+      return LOG_STR("TEMP_UP");
+    case IRA211Command::IRA211_COMMAND_TEMP_DOWN:
+      return LOG_STR("TEMP_DOWN");
+    case IRA211Command::IRA211_COMMAND_MODE:
+      return LOG_STR("MODE");
+    case IRA211Command::IRA211_COMMAND_FAN:
+      return LOG_STR("FAN");
+    case IRA211Command::IRA211_COMMAND_POWER:
+      return LOG_STR("POWER");
+    case IRA211Command::IRA211_COMMAND_SYNC:
+      return LOG_STR("SYNC");
+    default:
+      return LOG_STR("UNKNOWN");
+  }
+}
+
+static const LogString *mode_to_string(IRA211Mode mode) {
+  switch (mode) {
+    case IRA211Mode::IRA211_MODE_PROTECTION:
+      return LOG_STR("Protection");
+    case IRA211Mode::IRA211_MODE_TIMER:
+      return LOG_STR("Timer");
+    case IRA211Mode::IRA211_MODE_COMFORT:
+      return LOG_STR("Comfort");
+    default:
+      return LOG_STR("Unknown");
+  }
+}
+
+static const LogString *fan_to_string(IRA211Fan fan) {
+  switch (fan) {
+    case IRA211Fan::IRA211_FAN_AUTO:
+      return LOG_STR("Auto");
+    case IRA211Fan::IRA211_FAN_LOW:
+      return LOG_STR("1/3");
+    case IRA211Fan::IRA211_FAN_MEDIUM:
+      return LOG_STR("2/3");
+    case IRA211Fan::IRA211_FAN_HIGH:
+      return LOG_STR("3/3");
+    default:
+      return LOG_STR("Unknown");
+  }
+}
+
+void IRA211Protocol::dump(const IRA211Data &data) {
+  const optional<CommandLayout> layout = find_layout(data.command);
+  const uint8_t fields = layout.has_value() ? layout->fields : 0;
+  const unsigned whole = data.half_degrees / 2;
+  const unsigned tenths = (data.half_degrees & 1) ? 5 : 0;
+  const auto *command = LOG_STR_ARG(command_to_string(data.command));
+  if (fields == (FIELD_TEMPERATURE | FIELD_MODE | FIELD_FAN)) {
+    ESP_LOGI(TAG, "Received IRA211: command=%s, temperature=%u.%uC, mode=%s, fan=%s", command, whole, tenths,
+             LOG_STR_ARG(mode_to_string(data.mode)), LOG_STR_ARG(fan_to_string(data.fan)));
+  } else if (fields == FIELD_TEMPERATURE) {
+    ESP_LOGI(TAG, "Received IRA211: command=%s, temperature=%u.%uC", command, whole, tenths);
+  } else if (fields == FIELD_MODE) {
+    ESP_LOGI(TAG, "Received IRA211: command=%s, mode=%s", command, LOG_STR_ARG(mode_to_string(data.mode)));
+  } else if (fields == FIELD_FAN) {
+    ESP_LOGI(TAG, "Received IRA211: command=%s, fan=%s", command, LOG_STR_ARG(fan_to_string(data.fan)));
+  } else {
+    ESP_LOGI(TAG, "Received IRA211: command=%s", command);
+  }
+}
+
+}  // namespace esphome::remote_base
diff --git a/esphome/components/remote_base/ira211_protocol.h b/esphome/components/remote_base/ira211_protocol.h
new file mode 100644
index 0000000000..205d09215a
--- /dev/null
+++ b/esphome/components/remote_base/ira211_protocol.h
@@ -0,0 +1,65 @@
+#pragma once
+
+#include "remote_base.h"
+#include "esphome/core/helpers.h"
+
+#include <cmath>
+
+namespace esphome::remote_base {
+
+/* Siemens IRA211 thermostat remote: 38 kHz carrier, NRZ runs of 800 us bits after a fixed preamble.
+   A frame is 4, 5 or 7 ten-bit packets (start bit 1, 8 data bits, end bit 0): device ID, command,
+   the command's fields, then a checksum. Field bytes go over the wire as reverse_bits(~value). */
+
+enum class IRA211Command : uint8_t {
+  IRA211_COMMAND_TEMP_UP = 1,
+  IRA211_COMMAND_TEMP_DOWN = 2,
+  IRA211_COMMAND_MODE = 4,
+  IRA211_COMMAND_FAN = 5,
+  IRA211_COMMAND_POWER = 6,
+  IRA211_COMMAND_SYNC = 7,
+};
+
+enum class IRA211Mode : uint8_t {
+  IRA211_MODE_PROTECTION = 0,
+  IRA211_MODE_TIMER = 85,
+  IRA211_MODE_COMFORT = 170,
+};
+
+enum class IRA211Fan : uint8_t {
+  IRA211_FAN_AUTO = 3,
+  IRA211_FAN_LOW = 12,
+  IRA211_FAN_MEDIUM = 48,
+  IRA211_FAN_HIGH = 192,
+};
+
+static constexpr float IRA211_MIN_TEMPERATURE = 5.0f;
+static constexpr float IRA211_MAX_TEMPERATURE = 35.0f;
+
+struct IRA211Data {
+  IRA211Command command{IRA211Command::IRA211_COMMAND_SYNC};
+  uint8_t half_degrees{40};  // target temperature in 0.5 C steps
+  IRA211Mode mode{IRA211Mode::IRA211_MODE_COMFORT};
+  IRA211Fan fan{IRA211Fan::IRA211_FAN_AUTO};
+
+  float get_temperature() const { return this->half_degrees * 0.5f; }
+  /// Rounds to the nearest half degree and clamps to the 5 to 35 C range the thermostat accepts.
+  void set_temperature(float temperature) {
+    this->half_degrees =
+        static_cast<uint8_t>(lroundf(clamp(temperature, IRA211_MIN_TEMPERATURE, IRA211_MAX_TEMPERATURE) * 2.0f));
+  }
+
+  /// Compares the command and only the fields that command carries.
+  bool operator==(const IRA211Data &rhs) const;
+};
+
+class IRA211Protocol : public RemoteProtocol<IRA211Data> {
+ public:
+  void encode(RemoteTransmitData *dst, const IRA211Data &data);
+  optional<IRA211Data> decode(RemoteReceiveData src);
+  void dump(const IRA211Data &data);
+};
+
+DECLARE_REMOTE_PROTOCOL(IRA211)
+
+}  // namespace esphome::remote_base
diff --git a/esphome/components/siemens_ira211/__init__.py b/esphome/components/siemens_ira211/__init__.py
new file mode 100644
index 0000000000..1407aff81e
--- /dev/null
+++ b/esphome/components/siemens_ira211/__init__.py
@@ -0,0 +1,2 @@
+CODEOWNERS = ["@fonix232"]
+DOMAIN = "siemens_ira211"
diff --git a/esphome/components/siemens_ira211/climate.py b/esphome/components/siemens_ira211/climate.py
new file mode 100644
index 0000000000..16345e70f1
--- /dev/null
+++ b/esphome/components/siemens_ira211/climate.py
@@ -0,0 +1,17 @@
+import esphome.codegen as cg
+from esphome.components import climate_ir, remote_base
+from esphome.types import ConfigType
+
+AUTO_LOAD = ["climate_ir"]
+
+siemens_ira211_ns = cg.esphome_ns.namespace("siemens_ira211")
+SiemensIRA211Climate = siemens_ira211_ns.class_(
+    "SiemensIRA211Climate", climate_ir.ClimateIR
+)
+
+CONFIG_SCHEMA = climate_ir.climate_ir_with_receiver_schema(SiemensIRA211Climate)
+
+
+async def to_code(config: ConfigType) -> None:
+    remote_base.request_protocol("ira211")  # used from C++
+    await climate_ir.new_climate_ir(config)
diff --git a/esphome/components/siemens_ira211/siemens_ira211.cpp b/esphome/components/siemens_ira211/siemens_ira211.cpp
new file mode 100644
index 0000000000..e332134eac
--- /dev/null
+++ b/esphome/components/siemens_ira211/siemens_ira211.cpp
@@ -0,0 +1,167 @@
+#include "siemens_ira211.h"
+#include "esphome/core/hal.h"
+#include "esphome/core/helpers.h"
+
+namespace esphome::siemens_ira211 {
+
+using namespace remote_base;
+
+struct PresetMapping {
+  climate::ClimatePreset preset;
+  IRA211Mode mode;
+};
+
+static const PresetMapping PRESETS[] PROGMEM = {
+    {climate::CLIMATE_PRESET_COMFORT, IRA211Mode::IRA211_MODE_COMFORT},
+    {climate::CLIMATE_PRESET_ECO, IRA211Mode::IRA211_MODE_TIMER},
+};
+
+struct FanMapping {
+  climate::ClimateFanMode fan_mode;
+  IRA211Fan fan;
+};
+
+static const FanMapping FANS[] PROGMEM = {
+    {climate::CLIMATE_FAN_AUTO, IRA211Fan::IRA211_FAN_AUTO},
+    {climate::CLIMATE_FAN_LOW, IRA211Fan::IRA211_FAN_LOW},
+    {climate::CLIMATE_FAN_MEDIUM, IRA211Fan::IRA211_FAN_MEDIUM},
+    {climate::CLIMATE_FAN_HIGH, IRA211Fan::IRA211_FAN_HIGH},
+};
+
+// The tables live in flash, so entries are copied out before use
+template<typename T> static T load_entry(const T &slot) {
+  T entry;
+  progmem_memcpy(&entry, &slot, sizeof(T));
+  return entry;
+}
+
+// The first entry of each table is the fallback for values the other side does not know
+static IRA211Mode to_ira211_mode(climate::ClimatePreset preset) {
+  for (const auto &slot : PRESETS) {
+    const auto entry = load_entry(slot);
+    if (entry.preset == preset)
+      return entry.mode;
+  }
+  return load_entry(PRESETS[0]).mode;
+}
+
+static climate::ClimatePreset to_climate_preset(IRA211Mode mode) {
+  for (const auto &slot : PRESETS) {
+    const auto entry = load_entry(slot);
+    if (entry.mode == mode)
+      return entry.preset;
+  }
+  return load_entry(PRESETS[0]).preset;
+}
+
+static IRA211Fan to_ira211_fan(climate::ClimateFanMode fan_mode) {
+  for (const auto &slot : FANS) {
+    const auto entry = load_entry(slot);
+    if (entry.fan_mode == fan_mode)
+      return entry.fan;
+  }
+  return load_entry(FANS[0]).fan;
+}
+
+static climate::ClimateFanMode to_climate_fan_mode(IRA211Fan fan) {
+  for (const auto &slot : FANS) {
+    const auto entry = load_entry(slot);
+    if (entry.fan == fan)
+      return entry.fan_mode;
+  }
+  return load_entry(FANS[0]).fan_mode;
+}
+
+void SiemensIRA211Climate::setup() {
+  // The thermostat decides between heating and cooling itself, so one mode stands for both
+  if (this->modes_.count(climate::CLIMATE_MODE_HEAT_COOL)) {
+    this->modes_.erase(climate::CLIMATE_MODE_HEAT);
+    this->modes_.erase(climate::CLIMATE_MODE_COOL);
+  }
+  climate_ir::ClimateIR::setup();
+  // Match the restored state, so the first command after a reboot does not send a needless POWER frame
+  this->is_on_ = this->mode != climate::CLIMATE_MODE_OFF;
+}
+
+climate::ClimateMode SiemensIRA211Climate::active_mode_() const {
+  if (this->modes_.count(climate::CLIMATE_MODE_HEAT_COOL))
+    return climate::CLIMATE_MODE_HEAT_COOL;
+  if (this->modes_.count(climate::CLIMATE_MODE_HEAT))
+    return climate::CLIMATE_MODE_HEAT;
+  return climate::CLIMATE_MODE_COOL;
+}
+
+void SiemensIRA211Climate::transmit_frame_(IRA211Command command, IRA211Mode mode, IRA211Fan fan) {
+  IRA211Data data{};
+  data.command = command;
+  data.set_temperature(this->target_temperature);
+  data.mode = mode;
+  data.fan = fan;
+  this->transmit_<IRA211Protocol>(data);
+}
+
+void SiemensIRA211Climate::transmit_state() {
+  const IRA211Mode mode = to_ira211_mode(this->preset.value_or(climate::CLIMATE_PRESET_COMFORT));
+  const IRA211Fan fan = to_ira211_fan(this->fan_mode.value_or(climate::CLIMATE_FAN_AUTO));
+  // Show the preset that is actually sent, so a fresh entity does not stay on "none"
+  this->preset = to_climate_preset(mode);
+
+  if (this->mode == climate::CLIMATE_MODE_OFF) {
+    this->transmit_frame_(IRA211Command::IRA211_COMMAND_POWER, IRA211Mode::IRA211_MODE_PROTECTION, fan);
+    this->is_on_ = false;
+    return;
+  }
+  if (!this->is_on_) {
+    // Turning on takes a POWER frame before the state is sent
+    this->transmit_frame_(IRA211Command::IRA211_COMMAND_POWER, mode, fan);
+    this->is_on_ = true;
+  }
+  this->transmit_frame_(IRA211Command::IRA211_COMMAND_SYNC, mode, fan);
+}
+
+void SiemensIRA211Climate::apply_mode_(IRA211Mode mode) {
+  // The thermostat reports "off" as the PROTECTION mode
+  if (mode == IRA211Mode::IRA211_MODE_PROTECTION) {
+    this->mode = climate::CLIMATE_MODE_OFF;
+    this->is_on_ = false;
+    return;
+  }
+  if (!this->is_on_) {
+    this->mode = this->active_mode_();
+    this->is_on_ = true;
+  }
+  this->preset = to_climate_preset(mode);
+}
+
+bool SiemensIRA211Climate::on_receive(RemoteReceiveData data) {
+  auto decoded = IRA211Protocol().decode(data);
+  if (!decoded.has_value())
+    return false;
+
+  const IRA211Data &frame = *decoded;
+  switch (frame.command) {
+    case IRA211Command::IRA211_COMMAND_SYNC:
+    case IRA211Command::IRA211_COMMAND_POWER:
+      this->apply_mode_(frame.mode);
+      this->target_temperature = frame.get_temperature();
+      this->fan_mode = to_climate_fan_mode(frame.fan);
+      break;
+    case IRA211Command::IRA211_COMMAND_TEMP_UP:
+    case IRA211Command::IRA211_COMMAND_TEMP_DOWN:
+      this->target_temperature = frame.get_temperature();
+      break;
+    case IRA211Command::IRA211_COMMAND_MODE:
+      this->apply_mode_(frame.mode);
+      break;
+    case IRA211Command::IRA211_COMMAND_FAN:
+      this->fan_mode = to_climate_fan_mode(frame.fan);
+      break;
+    default:
+      return false;
+  }
+
+  this->publish_state();
+  return true;
+}
+
+}  // namespace esphome::siemens_ira211
diff --git a/esphome/components/siemens_ira211/siemens_ira211.h b/esphome/components/siemens_ira211/siemens_ira211.h
new file mode 100644
index 0000000000..dcba2ddcb9
--- /dev/null
+++ b/esphome/components/siemens_ira211/siemens_ira211.h
@@ -0,0 +1,29 @@
+#pragma once
+
+#include "esphome/components/climate_ir/climate_ir.h"
+#include "esphome/components/remote_base/ira211_protocol.h"
+
+namespace esphome::siemens_ira211 {
+
+class SiemensIRA211Climate final : public climate_ir::ClimateIR {
+ public:
+  void setup() override;
+  SiemensIRA211Climate()
+      : climate_ir::ClimateIR(remote_base::IRA211_MIN_TEMPERATURE, remote_base::IRA211_MAX_TEMPERATURE, 0.5f, false,
+                              false,
+                              {climate::CLIMATE_FAN_AUTO, climate::CLIMATE_FAN_LOW, climate::CLIMATE_FAN_MEDIUM,
+                               climate::CLIMATE_FAN_HIGH},
+                              {}, {climate::CLIMATE_PRESET_COMFORT, climate::CLIMATE_PRESET_ECO}) {}
+
+ protected:
+  void transmit_state() override;
+  bool on_receive(remote_base::RemoteReceiveData data) override;
+
+  void transmit_frame_(remote_base::IRA211Command command, remote_base::IRA211Mode mode, remote_base::IRA211Fan fan);
+  void apply_mode_(remote_base::IRA211Mode mode);
+  climate::ClimateMode active_mode_() const;
+
+  bool is_on_{false};
+};
+
+}  // namespace esphome::siemens_ira211
diff --git a/esphome/core/defines.h b/esphome/core/defines.h
index 628435a4d8..3168d269cf 100644
--- a/esphome/core/defines.h
+++ b/esphome/core/defines.h
@@ -170,6 +170,7 @@
 #define USE_REMOTE_PROTOCOL_GOBOX
 #define USE_REMOTE_PROTOCOL_HAIER
 #define USE_REMOTE_PROTOCOL_HOB2HOOD
+#define USE_REMOTE_PROTOCOL_IRA211
 #define USE_REMOTE_PROTOCOL_JVC
 #define USE_REMOTE_PROTOCOL_KEELOQ
 #define USE_REMOTE_PROTOCOL_LG
diff --git a/tests/component_tests/remote_transmitter/config/ira211_action.yaml b/tests/component_tests/remote_transmitter/config/ira211_action.yaml
new file mode 100644
index 0000000000..3cba9245ab
--- /dev/null
+++ b/tests/component_tests/remote_transmitter/config/ira211_action.yaml
@@ -0,0 +1,25 @@
+esphome:
+  name: test
+
+esp8266:
+  board: esp01_1m
+
+remote_transmitter:
+  pin: GPIO4
+  carrier_duty_percent: 50%
+
+button:
+  - platform: template
+    name: IRA211 constant
+    on_press:
+      - remote_transmitter.transmit_ira211:
+          command: sync
+          temperature: 22.5
+          mode: timer
+          fan_mode: high
+  - platform: template
+    name: IRA211 lambda temperature
+    on_press:
+      - remote_transmitter.transmit_ira211:
+          command: sync
+          temperature: !lambda return 21.0f;
diff --git a/tests/component_tests/remote_transmitter/test_ira211_action.py b/tests/component_tests/remote_transmitter/test_ira211_action.py
new file mode 100644
index 0000000000..2d202998f1
--- /dev/null
+++ b/tests/component_tests/remote_transmitter/test_ira211_action.py
@@ -0,0 +1,20 @@
+"""transmit_ira211 sets the temperature through IRA211Data::set_temperature()."""
+
+from collections.abc import Callable
+from pathlib import Path
+
+from tests.component_tests.remote_transmitter import protocol_call_bodies
+
+
+def test_ira211_temperature_is_a_statement_on_the_data(
+    generate_main: Callable[[str | Path], str],
+    component_config_path: Callable[[str], Path],
+) -> None:
+    main_cpp = generate_main(component_config_path("ira211_action.yaml"))
+    constant, lambda_ = protocol_call_bodies(main_cpp)
+    assert "apply_call.data.set_temperature(22.5f);" in constant
+    assert (
+        "apply_call.data.mode = remote_base::IRA211Mode::IRA211_MODE_TIMER;" in constant
+    )
+    assert "apply_call.data.fan = remote_base::IRA211Fan::IRA211_FAN_HIGH;" in constant
+    assert "apply_call.data.set_temperature(static_cast<float>(21.0f));" in lambda_
diff --git a/tests/components/remote_base/__init__.py b/tests/components/remote_base/__init__.py
index 2fe959bb16..f104557265 100644
--- a/tests/components/remote_base/__init__.py
+++ b/tests/components/remote_base/__init__.py
@@ -14,6 +14,7 @@ def override_manifest(manifest: ComponentManifestOverride) -> None:
             "aeha",
             "keeloq",
             "nexus",
+            "ira211",
             "nec",
             "magiquest",
             "rc5x",
diff --git a/tests/components/remote_base/ira211_test.cpp b/tests/components/remote_base/ira211_test.cpp
new file mode 100644
index 0000000000..f23d68640d
--- /dev/null
+++ b/tests/components/remote_base/ira211_test.cpp
@@ -0,0 +1,254 @@
+#include <gtest/gtest.h>
+#include "esphome/components/remote_base/ira211_protocol.h"
+
+#include <array>
+#include <cstdio>
+#include <cstdlib>
+#include <string>
+#include <utility>
+
+namespace esphome::remote_base::testing {
+
+namespace {
+
+constexpr uint32_t T_US = 800;
+constexpr uint32_t HEADER_US = 7600;
+constexpr size_t PREAMBLE_ITEMS = 4;  // 7600 mark, 800 space, 800 mark, 7600 space
+constexpr size_t BITS_PER_PACKET = 10;
+
+constexpr std::array<IRA211Command, 6> ALL_COMMANDS = {
+    IRA211Command::IRA211_COMMAND_TEMP_UP, IRA211Command::IRA211_COMMAND_TEMP_DOWN, IRA211Command::IRA211_COMMAND_MODE,
+    IRA211Command::IRA211_COMMAND_FAN,     IRA211Command::IRA211_COMMAND_POWER,     IRA211Command::IRA211_COMMAND_SYNC,
+};
+constexpr std::array<IRA211Mode, 3> ALL_MODES = {
+    IRA211Mode::IRA211_MODE_PROTECTION,
+    IRA211Mode::IRA211_MODE_TIMER,
+    IRA211Mode::IRA211_MODE_COMFORT,
+};
+constexpr std::array<IRA211Fan, 4> ALL_FANS = {
+    IRA211Fan::IRA211_FAN_AUTO,
+    IRA211Fan::IRA211_FAN_LOW,
+    IRA211Fan::IRA211_FAN_MEDIUM,
+    IRA211Fan::IRA211_FAN_HIGH,
+};
+constexpr std::array<float, 3> TEMPERATURES = {5.0f, 20.5f, 35.0f};
+
+bool carries_temperature(IRA211Command command) {
+  return command != IRA211Command::IRA211_COMMAND_MODE && command != IRA211Command::IRA211_COMMAND_FAN;
+}
+
+IRA211Data make_data(IRA211Command command, float temperature, IRA211Mode mode, IRA211Fan fan) {
+  IRA211Data data{};
+  data.command = command;
+  data.set_temperature(temperature);
+  data.mode = mode;
+  data.fan = fan;
+  return data;
+}
+
+RawTimings encode(const IRA211Data &data) {
+  RemoteTransmitData transmit;
+  IRA211Protocol().encode(&transmit, data);
+  return transmit.get_data();
+}
+
+optional<IRA211Data> decode(const RawTimings &timings) {
+  return IRA211Protocol().decode(RemoteReceiveData(timings, 25, TOLERANCE_MODE_PERCENTAGE));
+}
+
+std::string describe(const IRA211Data &data) {
+  char buf[64];
+  snprintf(buf, sizeof(buf), "command %d temperature %.1f mode %d fan %d", int(data.command), data.get_temperature(),
+           int(data.mode), int(data.fan));
+  return buf;
+}
+
+void expect_round_trip(const RawTimings &timings, const IRA211Data &expected) {
+  auto decoded = decode(timings);
+  ASSERT_TRUE(decoded.has_value()) << describe(expected);
+  // clang-tidy's unchecked-optional-access models neither gtest's ASSERT_TRUE nor value() as a check
+  if (decoded.has_value()) {
+    EXPECT_TRUE(*decoded == expected) << describe(expected) << " decoded as " << describe(*decoded);
+    if (carries_temperature(expected.command))
+      EXPECT_EQ(decoded->get_temperature(), expected.get_temperature()) << describe(expected);
+  }
+}
+
+// Index of the first run of packet `packet`, and of the run after its last one. Packets start with a 1 bit
+// after a 0 end bit and end with a 0 bit before a 1 start bit, so no run crosses a packet boundary.
+std::pair<size_t, size_t> packet_run_range(const RawTimings &timings, size_t packet) {
+  size_t begin = 0, end = 0, bits = 0;
+  for (size_t i = PREAMBLE_ITEMS; i < timings.size(); i++) {
+    if (bits == packet * BITS_PER_PACKET)
+      begin = i;
+    if (bits == (packet + 1) * BITS_PER_PACKET) {
+      end = i;
+      break;
+    }
+    bits += (std::abs(timings[i]) + T_US / 2) / T_US;
+  }
+  return {begin, end};
+}
+
+}  // namespace
+
+TEST(IRA211ProtocolTest, RoundTripsEveryCommandTemperatureModeAndFan) {
+  for (auto command : ALL_COMMANDS) {
+    for (auto temperature : TEMPERATURES) {
+      for (auto mode : ALL_MODES) {
+        for (auto fan : ALL_FANS) {
+          const IRA211Data data = make_data(command, temperature, mode, fan);
+          expect_round_trip(encode(data), data);
+        }
+      }
+    }
+  }
+}
+
+TEST(IRA211ProtocolTest, EveryFrameEndsWithTheTrailingMarkAndGap) {
+  for (auto command : ALL_COMMANDS) {
+    const RawTimings timings =
+        encode(make_data(command, 20.5f, IRA211Mode::IRA211_MODE_COMFORT, IRA211Fan::IRA211_FAN_AUTO));
+    ASSERT_GE(timings.size(), PREAMBLE_ITEMS + 2) << "command " << int(command);
+    EXPECT_EQ(timings[timings.size() - 2], int32_t(T_US)) << "command " << int(command);
+    EXPECT_EQ(timings.back(), -int32_t(HEADER_US)) << "command " << int(command);
+  }
+}
+
+TEST(IRA211ProtocolTest, SetTemperatureClampsAndRoundsToHalfDegrees) {
+  const struct {
+    float input;
+    float expected;
+  } cases[] = {
+      {4.0f, 5.0f},  {36.0f, 35.0f},  {22.26f, 22.5f}, {22.24f, 22.0f},
+      {-1.0f, 5.0f}, {140.0f, 35.0f}, {5.0f, 5.0f},    {35.0f, 35.0f},
+  };
+  for (const auto &c : cases) {
+    IRA211Data data{};
+    data.set_temperature(c.input);
+    EXPECT_EQ(data.get_temperature(), c.expected) << "input " << c.input;
+  }
+}
+
+// A receiver that stops capturing at the frame gap never sees the trailing mark nor the gap after it.
+TEST(IRA211ProtocolTest, DecodesWithoutTheTrailingMarkAndGap) {
+  for (auto command : ALL_COMMANDS) {
+    for (auto fan : ALL_FANS) {
+      const IRA211Data data = make_data(command, 35.0f, IRA211Mode::IRA211_MODE_TIMER, fan);
+      RawTimings timings = encode(data);
+      timings.pop_back();  // 7600 us gap
+      timings.pop_back();  // 800 us trailing mark
+      expect_round_trip(timings, data);
+    }
+  }
+}
+
+// Move one bit between two neighbouring runs inside the checksum packet: the bit count and the framing bits
+// stay valid, so only the checksum byte changes.
+TEST(IRA211ProtocolTest, RejectsACorruptedChecksum) {
+  for (auto command : ALL_COMMANDS) {
+    const IRA211Data data = make_data(command, 20.5f, IRA211Mode::IRA211_MODE_COMFORT, IRA211Fan::IRA211_FAN_LOW);
+    RawTimings timings = encode(data);
+    ASSERT_TRUE(decode(timings).has_value()) << describe(data);
+    size_t bits = 0;
+    for (size_t i = PREAMBLE_ITEMS; i + 2 < timings.size(); i++)
+      bits += (std::abs(timings[i]) + T_US / 2) / T_US;
+    ASSERT_EQ(bits % BITS_PER_PACKET, 0u) << describe(data);
+    const auto [begin, end] = packet_run_range(timings, bits / BITS_PER_PACKET - 1);
+    ASSERT_GT(end, begin) << describe(data);
+    // Shrink the first run that is at least two bits long and grow its neighbour; a run that keeps one bit
+    // keeps the start or end bit it may hold.
+    bool corrupted = false;
+    for (size_t i = begin; i < end && !corrupted; i++) {
+      if (std::abs(timings[i]) < int32_t(2 * T_US))
+        continue;
+      const size_t neighbour = i + 1 < end ? i + 1 : i - 1;
+      timings[i] -= timings[i] > 0 ? int32_t(T_US) : -int32_t(T_US);
+      timings[neighbour] += timings[neighbour] > 0 ? int32_t(T_US) : -int32_t(T_US);
+      corrupted = true;
+    }
+    ASSERT_TRUE(corrupted) << describe(data) << ": checksum packet has no run longer than one bit";
+    EXPECT_FALSE(decode(timings).has_value()) << describe(data);
+  }
+}
+
+// A SYNC frame carries seven packets; dropping a middle one leaves a well formed six packet frame whose
+// command still claims seven, so it must be rejected.
+TEST(IRA211ProtocolTest, RejectsAFrameOfTheWrongLengthForItsCommand) {
+  const IRA211Data data =
+      make_data(IRA211Command::IRA211_COMMAND_SYNC, 20.5f, IRA211Mode::IRA211_MODE_COMFORT, IRA211Fan::IRA211_FAN_HIGH);
+  RawTimings timings = encode(data);
+  ASSERT_TRUE(decode(timings).has_value());
+  const auto [begin, end] = packet_run_range(timings, 3);  // the tenths byte
+  ASSERT_GT(begin, PREAMBLE_ITEMS - 1);
+  ASSERT_GT(end, begin);
+  timings.erase(timings.begin() + begin, timings.begin() + end);
+  EXPECT_FALSE(decode(timings).has_value());
+}
+
+// transmit_state() sends POWER then SYNC back to back, so a receiver with a long idle sees both in one capture.
+// The gap may be captured a little short; it must still end the first frame.
+TEST(IRA211ProtocolTest, DecodesTheFirstOfTwoFramesWithAShortenedGap) {
+  const IRA211Data power =
+      make_data(IRA211Command::IRA211_COMMAND_POWER, 20.5f, IRA211Mode::IRA211_MODE_COMFORT, IRA211Fan::IRA211_FAN_LOW);
+  const IRA211Data sync =
+      make_data(IRA211Command::IRA211_COMMAND_SYNC, 20.5f, IRA211Mode::IRA211_MODE_COMFORT, IRA211Fan::IRA211_FAN_LOW);
+  RawTimings timings = encode(power);
+  timings.back() = -int32_t(HEADER_US - 100);
+  const RawTimings second = encode(sync);
+  timings.insert(timings.end(), second.begin(), second.end());
+  expect_round_trip(timings, power);
+}
+
+// Values are encoded as given, so a frame with an out-of-range field still gets a valid checksum.
+TEST(IRA211ProtocolTest, RejectsAnOutOfRangeTemperature) {
+  for (uint8_t half_degrees : {uint8_t(9), uint8_t(71), uint8_t(72), uint8_t(255)}) {
+    IRA211Data data = make_data(IRA211Command::IRA211_COMMAND_SYNC, 20.5f, IRA211Mode::IRA211_MODE_COMFORT,
+                                IRA211Fan::IRA211_FAN_AUTO);
+    data.half_degrees = half_degrees;
+    EXPECT_FALSE(decode(encode(data)).has_value()) << "half degrees " << int(half_degrees);
+  }
+}
+
+TEST(IRA211ProtocolTest, RejectsAnUnknownModeOrFan) {
+  IRA211Data mode =
+      make_data(IRA211Command::IRA211_COMMAND_MODE, 20.5f, static_cast<IRA211Mode>(1), IRA211Fan::IRA211_FAN_AUTO);
+  EXPECT_FALSE(decode(encode(mode)).has_value());
+  IRA211Data fan =
+      make_data(IRA211Command::IRA211_COMMAND_SYNC, 20.5f, IRA211Mode::IRA211_MODE_COMFORT, static_cast<IRA211Fan>(1));
+  EXPECT_FALSE(decode(encode(fan)).has_value());
+}
+
+TEST(IRA211ProtocolTest, RejectsAForeignFrame) {
+  const RawTimings nec_like = {9000, -4500, 560, -560, 560, -1690, 560, -560, 560};
+  EXPECT_FALSE(decode(nec_like).has_value());
+  EXPECT_FALSE(decode({}).has_value());
+}
+
+TEST(IRA211ProtocolTest, EqualityIgnoresFieldsTheCommandDoesNotCarry) {
+  const IRA211Data temp_up_auto = make_data(IRA211Command::IRA211_COMMAND_TEMP_UP, 20.5f,
+                                            IRA211Mode::IRA211_MODE_COMFORT, IRA211Fan::IRA211_FAN_AUTO);
+  const IRA211Data temp_up_high = make_data(IRA211Command::IRA211_COMMAND_TEMP_UP, 20.5f, IRA211Mode::IRA211_MODE_TIMER,
+                                            IRA211Fan::IRA211_FAN_HIGH);
+  EXPECT_TRUE(temp_up_auto == temp_up_high);
+  const IRA211Data temp_down = make_data(IRA211Command::IRA211_COMMAND_TEMP_DOWN, 20.5f,
+                                         IRA211Mode::IRA211_MODE_COMFORT, IRA211Fan::IRA211_FAN_AUTO);
+  EXPECT_FALSE(temp_up_auto == temp_down);
+  const IRA211Data temp_up_colder = make_data(IRA211Command::IRA211_COMMAND_TEMP_UP, 20.0f,
+                                              IRA211Mode::IRA211_MODE_COMFORT, IRA211Fan::IRA211_FAN_AUTO);
+  EXPECT_FALSE(temp_up_auto == temp_up_colder);
+
+  const IRA211Data mode_low =
+      make_data(IRA211Command::IRA211_COMMAND_MODE, 5.0f, IRA211Mode::IRA211_MODE_TIMER, IRA211Fan::IRA211_FAN_LOW);
+  const IRA211Data mode_high =
+      make_data(IRA211Command::IRA211_COMMAND_MODE, 35.0f, IRA211Mode::IRA211_MODE_TIMER, IRA211Fan::IRA211_FAN_HIGH);
+  EXPECT_TRUE(mode_low == mode_high);
+
+  const IRA211Data sync_auto =
+      make_data(IRA211Command::IRA211_COMMAND_SYNC, 20.5f, IRA211Mode::IRA211_MODE_COMFORT, IRA211Fan::IRA211_FAN_AUTO);
+  const IRA211Data sync_high =
+      make_data(IRA211Command::IRA211_COMMAND_SYNC, 20.5f, IRA211Mode::IRA211_MODE_COMFORT, IRA211Fan::IRA211_FAN_HIGH);
+  EXPECT_FALSE(sync_auto == sync_high);
+}
+
+}  // namespace esphome::remote_base::testing
diff --git a/tests/components/remote_receiver/common-actions.yaml b/tests/components/remote_receiver/common-actions.yaml
index cd01690344..6aa7ae37bb 100644
--- a/tests/components/remote_receiver/common-actions.yaml
+++ b/tests/components/remote_receiver/common-actions.yaml
@@ -192,3 +192,8 @@ on_hob2hood:
     - logger.log:
         format: "on_hob2hood: %u"
         args: ["x.command"]
+on_ira211:
+  then:
+    - logger.log:
+        format: "on_ira211: %u %.1f"
+        args: ["static_cast<uint8_t>(x.command)", "x.get_temperature()"]
diff --git a/tests/components/remote_receiver/esp32-common.yaml b/tests/components/remote_receiver/esp32-common.yaml
index d2b135f034..5062319040 100644
--- a/tests/components/remote_receiver/esp32-common.yaml
+++ b/tests/components/remote_receiver/esp32-common.yaml
@@ -43,6 +43,13 @@ binary_sensor:
     name: Hob2Hood Light On
     hob2hood:
       command: light_on
+  - platform: remote_receiver
+    name: IRA211 Sync
+    ira211:
+      command: sync
+      temperature: 21.5
+      mode: comfort
+      fan_mode: low
   - platform: remote_receiver
     name: MagiQuest Wand
     magiquest:
diff --git a/tests/components/remote_transmitter/common-buttons.yaml b/tests/components/remote_transmitter/common-buttons.yaml
index dff4e8f9c5..b3583ffe12 100644
--- a/tests/components/remote_transmitter/common-buttons.yaml
+++ b/tests/components/remote_transmitter/common-buttons.yaml
@@ -92,6 +92,14 @@ button:
       - remote_transmitter.transmit_toshiba_ac:
           rc_code_1: 0xB24DBF4050AF
           rc_code_2: 0xD5660001003C
+  - platform: template
+    name: IRA211
+    on_press:
+      - remote_transmitter.transmit_ira211:
+          command: sync
+          temperature: 22.5
+          mode: timer
+          fan_mode: high
   - platform: template
     name: Sony
     on_press:
diff --git a/tests/components/siemens_ira211/common.yaml b/tests/components/siemens_ira211/common.yaml
new file mode 100644
index 0000000000..fc2c53f967
--- /dev/null
+++ b/tests/components/siemens_ira211/common.yaml
@@ -0,0 +1,5 @@
+climate:
+  - platform: siemens_ira211
+    name: Siemens IRA211
+    transmitter_id: xmitr
+    receiver_id: rcvr
diff --git a/tests/components/siemens_ira211/test.esp32-idf.yaml b/tests/components/siemens_ira211/test.esp32-idf.yaml
new file mode 100644
index 0000000000..b217e0f0d9
--- /dev/null
+++ b/tests/components/siemens_ira211/test.esp32-idf.yaml
@@ -0,0 +1,4 @@
+packages:
+  remote_transmitter: !include ../../test_build_components/common/remote_transmitter/esp32-idf.yaml
+  remote_receiver: !include ../../test_build_components/common/remote_receiver/esp32-idf.yaml
+  siemens_ira211: !include common.yaml
diff --git a/tests/components/siemens_ira211/test.esp8266-ard.yaml b/tests/components/siemens_ira211/test.esp8266-ard.yaml
new file mode 100644
index 0000000000..b5b3d45c10
--- /dev/null
+++ b/tests/components/siemens_ira211/test.esp8266-ard.yaml
@@ -0,0 +1,4 @@
+packages:
+  remote_transmitter: !include ../../test_build_components/common/remote_transmitter/esp8266-ard.yaml
+  remote_receiver: !include ../../test_build_components/common/remote_receiver/esp8266-ard.yaml
+  siemens_ira211: !include common.yaml