diff --git a/src/devices/boiler.cpp b/src/devices/boiler.cpp
index 7f9d721a5..2d0cbb4bb 100644
--- a/src/devices/boiler.cpp
+++ b/src/devices/boiler.cpp
@@ -1098,13 +1098,7 @@ void Boiler::process_UBAMonitorSlowPlus(std::shared_ptr<const Telegram> telegram
     has_bitupdate(telegram, ignWork_, 2, 3);
     has_bitupdate(telegram, heatingPump_, 2, 5);
     has_bitupdate(telegram, wwCirc_, 2, 7);
-    
-    /* Update exhaust temperature if it is unequal 0 */
-    const uint8_t exhaustTempOffset{6};
-    uint16_t exhaustTemp{0};
-    if (telegram->read_value(exhaustTemp, exhaustTempOffset))
-        has_update(telegram, exhaustTemp_, exhaustTempOffset);
-    
+    // has_update(telegram, exhaustTemp_, 6);   // Disabled until verified as valid location, see #1147.
     has_update(telegram, burnStarts_, 10, 3);   // force to 3 bytes
     has_update(telegram, burnWorkMin_, 13, 3);  // force to 3 bytes
     has_update(telegram, burn2WorkMin_, 16, 3); // force to 3 bytes