Hi, I had a Vailliant ecotec plus 418 and Honeywell cm927 installed a few months ago, my old system was 30 years old and did not have a room thermostat. Now we have had the heating on I am not sure if it's working as it should.
Initially when the heating comes on the boiler stays on until the room temp matches the set temp even though the flame icon still shows on the display, after this the boiler does not come on again until the room temp drops which can be 2 hours or more which means the radiators go cold. Is this how modern systems work
Initially when the heating comes on the boiler stays on until the room temp matches the set temp even though the flame icon still shows on the display, after this the boiler does not come on again until the room temp drops which can be 2 hours or more which means the radiators go cold. Is this how modern systems work