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Sorry, I wont know pressure and flow rates until after the extension is complete and the mains pipe coming into house is replaced.

Thanks. Yes, we wont be running a bath at the same time as 2 showers, so thats OK. There is a possibilities of stuff like dishwashers, toilets, washing machines kicking in with cold feeds, which I guess would affect flow/pressure to a combi more than a boiler with a storage tank. Or would it...

Thanks Guys - sorry its been a while. To recap we will have a bathroom with bath and seperate shower, and also an on-suite with shower. edit - quoted for 12 rads, plus underfloor heating approx 6*3m The options I've been given are: 1. A vailant 831 condensing combi - will that be enough...

We are extending our 3 bed detached single bathroom hosue to a 5 bed. Currently we have a non-condensing non-combi ideal classic boiler, with 4 large rads and 3 small rads. Shower is an electric one. The heating has never been great, and I'd like to upgrade the boiler AND all pipework...

Thanks guys. All working now. I guess the old one must have used power off the mains for it's own operation, hence the neutral - mine is battery powered. Should have worked that out myself, but understand now anyway. Fuse is also OK - boiler is fused and does have a switch next to it...

I'm trying to replace an old analog room thermostat with a programmable digital one. The new one has 3 terminals - Common, Normally open and Normally closed Instructions say connect heater to Common and Normally Open. The diagram associated with this shows LIVE wire to Common, and Neutral...

OK, thanks people. That gives me a few things to look at. Just need to decide whether to mail order a Siamp one in advance that I might not need, or to rely on running off and trying to get a generic one that fits if it turns out not to be just a blockage.

I have a w/c with on of these cisterns. http://www.siamp.com/index.php?option=com_hotproperty&task=view&id=36&Itemid=42 Its about 5 years old and has always worked great. But today, it still works, but after flushing, the tank is taking nearly an hour to fill up. It is pretty badly enclosed...

OK, thanks guys. I realize it was a difficult one to give guidance on without the full details. I was deliberately vague on a public forum, so as you say I may be better off within the closed forum. He aint great with computers (hence me being here) but I'll give him a nudge in this...

I'm posting on behalf of my father. He is a gas heating engineer with his own business in the UK. Doesn't do installations, just servicing and repairs. Business has been around 20 years, and has a steady list of repeat customers who have their annual service. He doesn't employ anyone else...