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Had my first combi installed in December, and it's on the internal wall of my garage, so the condensate drain simply connects into the washing machine drain pipe.

If it's an old house, how old is your mains stopcock? I recently replaced mine as it wasn't turning off the water completely, and discovered it was almost blocked with gunk. With a new stopcock, now getting almost double the pressure we had before. So much so I have to keep the new stopcock...

We had a boiler with the flue 1 foot above the ground under our rear garage window, which broke all the regulations. Was mentioned every year in the boiler servicing that the flue doesn't meet current regs, which would be a problem if we replaced the boiler or sell the house. But as long as...

I read in my boiler manual that it is common to have to top the pressure up ever so slightly every few months, as air will naturally bleed out of the internal pump over time.

Warranty plays an important part considering costs of repairs these days. I've just had a Viessmann Vitodens installed (very impressed with it so far), as it had a 7 year warranty compared to 3-5 with the other choices. My installer said that although they haven't been that quick with...

Still don't understand how a leak in the hot water system causes a pressure drop in the heating system?

I'm surprised you have an electric shower with no isolation points for the electric other than the fusebox?

I recently replaced my stopcock inside the house as it could never be turned off properly and I always had to go into the street. Once I'd cut it out, I looked through it and was surprised how much gunk had built up, there was hardly any bore left for the water to go through. Once the new...

I wasn't the OP but yes I was talking about an open vented gravity system. This is what we had till last December, very poor system. No motorised valve or pumps anywhere on the DHW side, just long gravity runs to heat the coil inside the hot water cylinder which took forever. And the header...

Nope, just a very poor gravity setup with lots of horizontal runs and probably sludged up. When the pipes out of the boiler got hot, it took a good 5-10 minutes before the pipes going into the hot water cylinder got hot. It was the main reason we went for a combi rather than replacing like for...

Good point, although apart from a couple of feet the pipe goes behind the tiles and under a tiled floor so a bit tricky to change now. It's such a fine spray on the hot tap that the flow through it quite often doesn't trigger the boiler to detect a flow and start heating, unless it's turned up...

I suppose a good rule of thumb in the summer is to educate ourselves to use the cold tap rather than the hot if just rinsing hands. Even now since we got the combi, I've noticed the kids just quickly wash their hands in seconds with the hot tap, well before any hot has even started, so they may...

I doubt it - previously to get hot water in the summer we had to run our boiler at full whack for at least 90 minutes over night every night to get a decent amount of water to last the day!

In early December we changed from a standard to a combi set up. Had the house nearly 20 years, and first time with a combi so wasn't sure what to expect. So far so good, I'm very impressed with it, and my December gas bill was a lot less than my November one, when traditionally it's a lot...

The wireless stat doesn't talk to the boiler itself, it talks to a relay box connected to the boiler via cables, so you could position that relay box a lot nearer if you can get longer cables through to the boiler.

Don't apologise for wittering, useful information that as I was wondering what the proportional bandwidth meant when I saw it in the setup menu. Defaults to 1.5 and goes up to 3. There's also a "max number of cycles per hour" which can be 3/6/9/12 and defaults to 6. I read you should never...

I had a play last night and I was pleasantly surprised to notice my thermostat *is* reading accurately. Took it into the garage and the liquid thermometer dropped to 9C. It took a good 25-30 minutes for the room thermostat to drop from 22C to 9C but it got there. And I suppose in practice a...

Sorry to hijack the thread.. Had a new boiler installed last week. Ancient pipework and had a chemical flush performed, and there's now a Magnaclean just before the return to the boiler. How often should it be opened and cleaned? And should I do an initial clean so soon after it has gone...

Cheers for the tips, need to have a play and find the best place to locate it. Just bought a cheap liquid thermometer from B+Q which seems to be quick and accurate (was reading 20 in the store, dropped to 15 by the time I reached my car. Turned the car climate to 24 and it went to 24...)...

I have just had a new combi boiler installed, using the same wireless room thermostat, and I'm having trouble figuring out how best to use it. In the living room, it can be 22C and it keeps the temperature at this nicely. The problem is, if I turn off the heating it stays at 22C for ages, even...