by htg engineer »
Mon Feb 11, 2008 9:39 pm
Basically you can't - the way you have described it - the radiator will heat when water is calling for heat.
When the stat reaches temperature the burner/boiler will shut off. Heat will be lost through the radiator, so that should keep the boiler cycling on and off - but will you have hw on 24/7 just to keep radiator warm ?
Do you want boiler to run - to heat one radiator ?
Why not fit an electric radiator/towel rail ?