Recent content by paulhud1985

forgot to say, i turned off ALL the upstairs hot rads and the downstairs rads still didn't get hot. The old boiler was in the kitchen (downstairs, middle of rads system) and new boiler is in airing cupboard (first floor). Upstairs rads get hot really quick so confident the pump is working OK.

Brand new Glow worm CX35 combi boiler. Rads upstairs are red hot - flow and return red hot. Losing slight pressure but investigating this separately. Downstairs rads are stone cold. When I put a hose on the drain cock the water flows clearly (had system cleaner on old boiler for a week...