Hey guys! I was wondering if I might be able to ask a question about the thermostat - Siemens RDH10RF? When I set it to say 21c it's not going off and calling for heating until it reaches 22..the heating climbs to 21.5 and seems to cut at 22, when the house is boiling . I've to spoken to boiler company who looks after for landlord and it was explained to me that the thermostat will keep asking for heat after the temp has reached 21...I sort of said well what's the point of having a thermostat?! Spoke to landlord and they are contacting said company for clarification. I just wondered if anybody has had experience of this thermostat and knows if that sounds right? (True story) I've actually got 2 small marsupials that originate from Australia as pets and they need to kept at 21c or higher and it's really bugging me that I can't tell what actual temperature the house is . Any replies would be much appreciated xx