House Won't Warm Up Even With the Heating On
The boiler runs for hours, radiators are warm, but rooms never reach a comfortable temperature..
The boiler runs for hours, radiators are warm, but rooms never reach a comfortable temperature.
What is actually going on
The boiler runs for hours, radiators are warm, but rooms never reach a comfortable temperature.
The realistic causes, in order
Radiators undersized for the rooms, often after an extension, loft conversion or new glazing changed the heat loss A system running at a flow temperature too low for the emitters fitted Poor balance, so the nearest radiators take most of the flow and far rooms get little
What we test on site
Room-by-room heat loss against the radiator output actually installed Flow temperature and balance across the circuit Insulation and draught factors that change the calculation, reported honestly rather than ignored
Questions we get asked
What causes a house that won't warm up on a gas boiler?
Radiators undersized for the rooms, often after an extension, loft conversion or new glazing changed the heat loss
What normally puts a house that won't warm up right?
Balancing, targeted radiator upgrades and correct flow temperature usually transform comfort without touching the boiler.
Is it safe to keep using the system with a house that won't warm up?
Upsizing a boiler rarely fixes a cold room. Output has to reach the room through correctly sized emitters and balanced flow.