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You could try to descale it with chemicals, but it may not work and if you have never done this before you would probably be better just changing the calorifier. Not a bad job as long as you have a small wide-jawed spanner.

Thanks for all your replies guys, think I'll have a go!

Tried doing a search on this topic but couldn't find anything, so here goes: Is replacing a standard light switch with a touch dimmer like the one below a straight swap, or is there more to it? http://www.tlc-direct.co.uk/Products/VLIQ1401.html Cheers in advance.

No, all of the adjoining walls to next door are solid, but about 3 of the internal walls are plasterboard. Think that I may use them sparingly then. Cheers all.

Yes, agreed with Lorraine. Testing a boiler effectively makes it a pre-used appliance as far as the GSIUR is concerned. The firms that I thought might be able to help wouldn't go as far as Hemel Hempstead I'm afraid, if I hear of any others I'll post back.

Where in Herts are you? I may know a couple of companies who cover some of Herts who could quote you. They are medium-large sized companies who will do a good job, and should be cheaper than that. And pre-testing a boiler??? Give me a break! Ask to see pictoral evidence of them testing your...

Hi all, about to have some wiring work done on a flat with lots of plasterboard & stud walls. At the minute lots of the sockets are surface mounted - I'd prefer to have them flush. I've seen these things for sale: http://www.tlc-direct.co.uk/Products/MTMDLB1.html Are these types of box...

The price is fairly high, is it from a large-ish company? It looks like they are making their money on materials such as the boiler and Honeywell controls as all can be obtained cheaper yourself, but I doubt that they would let you supply your own as its obviously their way of making money...

Croydoncorgi, I need a physically small heating only boiler for something I'm doing, I normally use the Vaillant Ecomax Pro 18 or 28E for jobs like this, but I've just noticed the Vitodens 100 compact. The brochure says its only for open vented, but surely its OK for sealed too (like the...

Thanks. Any idea of the potential costs for the final connection? I know that it'll probably be more from Thames Water than others as they need to clean up the 240m3 of raw sewage they have dumped in their rivers over the last few years, but a ball park figure would be really helpful...

Sam its never too late, I retrained to be a heating engineer after going to University (studied History) and working in insurance for a few years after that, now £350 per day is a bad day for me :wink: (only kidding mate!) Ring some of the larger firms in your area, they should definitely...

Just moved into a new house and am wondering how I can go about upgrading the 15mm lead mains to a 22/23mm blue pipe. I only ever do domestic heating work so I've never had to really touch an incoming mains before, apart from when tapping in for combi's etc, always INSIDE the house. Do I...

Hi all, plumber seeking some decorating advice! Just moving into a new place, and I've got woodchip to take off and paint to strip from the architrave and skirtings. I've ordred some Wallwik wallpaper removal sheets at the reccommendation of some people on this site, I'm really hoping its as...

Oh look at that another Isar breaking down after being installed for 5 minutes. Surprise surprise...

Anyone here know if / when Veissmann are bringing out a variable flue termination kit a la Vaillant or WB ? Cheers

A company (who will remain nameless) who subcontract to a large council in the Southeast were given a contract to install about 500 new Vaillant boilers. This was on the condition that they were powerflushed well and inhibitor added, and that afterwards a water sample was sent off, analysed and...

I'm sure someone once said that about Vaillant, Biasi or any other continental boiler before it was popular over here!! You humourless wit caller you.

And you're sure its not an underfloor leak? Probably not I suppose... As for spares, I use a local merchants or if I want something quickly I use HRPC. I've found some web based spares shops but they're nothing special IMO. Can't remember price off the top of my head, but its probably...

Have you seen somewhere that stocks them in London? They're no-where to be seen on the web as far as a ball park price£ goes.

The Ferroli Arena also has 2 pumps Eliteheat. None are remotely like the Modena though :wink: