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A drain-off point directly above a fuse box...which presumably can't be accessed once the washing machine is in place ?! Edit - you guys beat me to it whilst I was typing ! Make sure you post one of those pics on the Electrics forum - they'll love that !

A bit late now, but if you use the correct insert then the plastic pipe should go as far into the TRV as the equivalent copper pipe. I did 7 radiators in my place in this way last year and haven't had a single leak yet. These are the compression inserts ...

Where did you get a Magnaclean for that price, out of interest ?

Room stats often have a small screw underneath that fixes the stat to the back-plate, which is normally screwed to the wall. With any luck you'll have a loose connection inside, because there's not much else you're going to be able to check for. You'd be advised to isolate the electrical...

They do sell to the public. I'm not in the trade and replaced my entire central heating system last year, buying most of it from them. Pick up a catalogue instore or find a similar catalogue from any other plumbers merchants. The only way you're going to get accurate figures is from the...

If you picked up a PTS catalogue like I advised you to do in your recent TRV thread, then there are 10+ pages of radiators from a lot of the main manufacturers with all the relevent stats - find some of a similar size and design to yours and that'll give you a rough idea of the heat output of...

Some manufacturers make different size TRVs, whereas some just make the 15mm size and include adaptors in the box. Buying an 8mm TRV now and replacing it in the near future would be a waste of money in my opinion. I'd go for the 15mm TRV with adaptor, personally. I found the 10mm reducing...

If you've got no instructions, then just take care and don't tighten anything fully until you're happy everything looks OK. The TRV nut goes over the pipe, followed by the special compression olive fitting, which should sit on the top. Push the whole lot up inside the TRV and tighten the nut...

As far as I remember, the compression fitting I described is designed to be used instead of a standard olive so no, you shouldn't need a standard olive as well. I can only comment on the fittings that I had with the TRV4 though - full instructions were included in the pack, by the way. If...

[/url] That's just a standard 8mm olive - he'll only be able to use that in an 8mm TRV.

I fitted a load of Drayton TRV4s to 10mm microbore on my system. The TRV4s are all 15mm, so the 10mm and 8mm versions come with a suitable compression olive for connecting to copper microbore, like the one at the bottom of this photo ...

They're using gas to heat the exact amount of hot water that you need. How is that 'wasting' gas ? Sure - you're (almost) getting your hot water for nothing in the winter, but in the warmer months when you don't have the central heating on, you're having to heat that full cylinder of water...

What do you have the hot water control on the boiler set to ?

I managed to get hold of 2 manifolds last year that went from 22mm down to 4x10mm. The 22mm passed through, allowing the run to continue or the addition of a 5th 10mm outlet with suitable reducers. The 22mm outlets were end-feed and the 10mm outlets were compression. I did have to trawl...

If all the pipework and radiators get nice and hot as expected and the boiler seems to work OK, then you may not have anything to worry about. If you were going to add new radiators, then flushing the whole system through with a suitable cleaner first would be sensible though.

Copper, although you can get narrow-bore plastic tubing too. The copper microbore is far easier to bend round corners and awkward angles than 15mm copper tube, but it has a tendency to kink rather easily so must be handled with care. It's fairly common for a boiler to have a 22mm send and...

8mm microbore is perhaps a bit on the small side, but I don't see any problem with using 10mm microbore in a CH system, provided that system is treated properly and not neglected. I guess an old microbore system that has not been looked after or well maintained could give you problems...

Based on my experience of living in a house without and (currently) with a meter and provided you don't waste/use excessive amounts of water, I reckon that a single person in an average 3 bedroom house will probably save money and a single person living in a larger house would probably save a...

Fair enough - you had me worried I was misleading people ! Only trying to help :)

Well that put me in my place, didn't it ? If you were able to point out any mistakes in my posts, then I think the OP would find that far more useful and I would learn in the process - wouldn't that be slightly more constructive ? :roll: