1
vote
1answer
71 views

What is the best way to retrofit an underfloor heating system in a concrete slab?

I have a UK bungalow that I am renovating. I would like to replace the current heating system (radiators, natural gas boiler) with an underfloor heating system. I think the cost of digging up the ...
0
votes
0answers
393 views

What could cause my radiators to go cold when the hot water is turned on?

when only heating is selected on my program timer the radiators all work fine and are hot. But when both heating and hot water are on the water gets hot but all the radiators go cold. When the hot ...
4
votes
3answers
6k views

Why is it taking so long for my house to heat up?

Firstly, I should probably mention that I'm in the UK... My wife and I bought a house new from a builder over 9 years ago and have had no problems whatsoever with our central heating system in that ...
0
votes
1answer
505 views

Is it possible to fix a leak in PP-R piping by injecting some type of substance?

I have a central heating system based on PP-R piping and radiators. The PP-R piping goes under the floor. The problem is that the pressure is droping 0.2 atm / week and I am sure there's a leak ...
2
votes
1answer
370 views

What would cause the bottom half of a radiator cool down after heating up?

I have a one pipe system and just had a new Vertex vertical radiator fitted. It's the last radiator in the circuit. The radiator I had replaced for the vertical radiator worked like a dream for the ...
4
votes
1answer
590 views

Should central heating pipes through internal brickwork have insulation?

My house has old (large diameter) steel central heating pipes. These travel through the basement before passing up through the house. My concern is that when they pass through internal walls they are ...
6
votes
3answers
359 views

How can I locate the pump in a wet open-vented central heating system?

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 ...