Lost: One Central Heating Pump. Reward offered (in reputation points ;)
I have a wet open-vented central heating system, and I've turned it on after six months to find the radiators aren't getting hot. We suspect the pump is clogged with sediment. The problem is, we can't find the pump. I've had a plumber round and we've searched around, even pulling up some floorboards near the hearth, but we can't find it.
Where should I look? Any tips for locating the pump?
The central heating boiler is upstairs, the control panel is downstairs, there are three radiators downstairs, and four upstairs.