I just have a feeling that the sensor is picking up the temperature from the kitchen hot water pipe, which come from the corner runs straight along the wall to the sink. The only other thing is the exact other side of the wall where the sensor is, is a heatstore boiler that chucks out loads of heat! It warms the floor upstairs where the cats like to lounge!!
The kitchen floor is: tiles, screed, electric matting, plywood (or similar), 130year old wooden floorboards and then a floor space with the pipes..
The kitchen floor is: tiles, screed, electric matting, plywood (or similar), 130year old wooden floorboards and then a floor space with the pipes..
