diff --git a/boiler.yaml b/boiler.yaml
index 4125cde..831fc2c 100644
--- a/boiler.yaml
+++ b/boiler.yaml
@@ -47,7 +47,7 @@ sensor:
   id: boiler_temperature
   name: "Boiler Temperature"
   filters:
-  - offset: 3.3
+  - offset: 1.1
 
 - platform: adc
   pin: A0