Can't find a thermostat anywhere in my bungalow which puzzles me. The heating system is only about 20 years old (as is the house), oil fired boiler, TRVs on all the rads except the one in the hall. Since moving in 18 months ago I've managed by closing the flow valve on the hall rad so that's permanently off, plus turning down the TRVs in all the rooms I don't use to frost setting and letting the other TRVs control the temp I actually want in the kitchen, shower room and my bedroom which they do quite well.
However the boiler cycles on and off pretty rapidly (every five to ten minutes or so) as the temperature of the water in it triggers its own internal stat and then even if the main rooms don't need more heat it still heats the water in all the pipework under the floor, even to all the bypass pipework to the rads at the far end of the house that are closed off, and I suspect I'm wasting a lot of oil keeping all those pipes hot every few minutes whereas the hysterisis in a room stat would perhaps prevent the boiler cycling anything like as often.
Maybe I'm fussing over nothing as my oil usage is quite low but I've never had a house without a room stat before.
Comments, suggestions?