From b5e18eb101d34fee84d4167d680c9734c29a3b87 Mon Sep 17 00:00:00 2001
From: Thomas Rupprecht <rupprecht.thomas@gmail.com>
Date: Sun, 26 Jul 2026 06:16:07 +0200
Subject: [PATCH] [opentherm] Fix l/min unit capitalization to L/min (#17804)

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---
 esphome/components/opentherm/schema.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/esphome/components/opentherm/schema.py b/esphome/components/opentherm/schema.py
index f70c8e24db..7f3ea2df36 100644
--- a/esphome/components/opentherm/schema.py
+++ b/esphome/components/opentherm/schema.py
@@ -91,7 +91,7 @@ SENSORS: dict[str, SensorSchema] = {
     ),
     "dhw_flow_rate": SensorSchema(
         description="Water flow rate in DHW circuit",
-        unit_of_measurement="l/min",
+        unit_of_measurement="L/min",
         accuracy_decimals=2,
         icon="mdi:waves-arrow-right",
         state_class=STATE_CLASS_MEASUREMENT,