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If you can run another 3 core+E between upstairs switch and downstairs switch, you can convert the downstairs light to 2-way. With the wiring you have, I think you can choose either upstairs OR downstairs as 2-way.

There seem to be some special features of crimped connectors and heat-shrink sleeving. Could these be used safely to extend the existing conductors within the pattress box?

As said before, a 'borrowed neutral' fault means that line and neutral come from different circuits. In you case, the different circuits might be on different RCDs. This can be a hazard as it is not possible to isolate the circuits at the CU. The lights at the top and bottom of the stairs ought...

I'd be interested in comments about Gypframe RB2 SureFix Bar for evening out irregular joists/rafters.

I'm no expert and I don't suppose it will be a problem round a toilet, but it has been mentioned several times in the tiling forum that PVA is water soluble and shouldn't be used behind tiles in wet areas. :) I'm glad the toilet move went OK as I've a similar job ahead.

Removing chimneys helps the sound insulation. It is difficult to insulate inside unused chimneys and nigh on impossible to insulate used chimneys. If you plan to have fairly heavy items on the insulated wall, you might put vertical steel plates behind the plasterboard to take fixings...

My amateur take: 6mm² SWA for 10m underground should support 40A with a 1.2% voltage drop (good enough for lighting and power). This should be enough for a 32A circuit for 13A sockets and a 6A lighting circuit. The socket radial circuit can be wired in 4mm² T+E if clipped direct or buried in...

Plumbed whole house in JG and not a single leak.did you use a proper pipe cutter did you only cut on the line did you insert until next line reached union

Thanks again for the input. I'm not sure I am much closer to a decision. :? I'll have a word with a local estate agent regarding resale values with or without GFCH. I saw the Heatrae Sadia SS unvented cylinders with double immersion heaters. With hot water storage and mains pressure there would...

I suspect you'll ought to use horizontal resilient bars on the vertical battens and seal the edges with acoustic sealant. The resilient bars add 10mm to the thickness and the vertical battens only need to be around 10mm thick or so to prevent screws through the plasterboard from touching the...

As well as overall running costs, I'm a bit worried about counting all the birds in the bush before they're hatched in one basket. With a combi there is no backup - either a boiler problem or a power cut can kill the whole system. How much would be reasonable for annual servicing and...

I've just taken out a shower tray and there was a sticker on the base saying it MUST be installed on a weak bed of mortar. It wasn't. Yours has ribs, which mine didn't, so could be different.

I'd try a plunger. I hope that tray doesn't require a bed of weak mortar to sit on. :shock:

I think USB 1 is only 11 Mb/s but you probably have 100Mb/s network. You could get a NAS device that would be a LOT faster than USB 1. http://www.amazon.co.uk/dp/B002XGP1VC/ref=asc_df_B002XGP1VC2451890?smid=A3P5ROKL5A1OLE&tag=googlecouk06-21&linkCode=asn&creative=22206&creativeASIN=B002XGP1VC...

I am undecided between Economy 7 or gas fired central heating for a one-bedroom ground floor flat conversion. Even without heat, the flat doesn't seem cold. It is mid-terrace and there is a basement flat below and a maisonette above, both have GFCH. I doubt I could save energy costs to match the...

For two bathrooms you might be a little tight with 150 litres of hot water storage if you want long powerful showers. With a 25 kW boiler, this will take about half an hour to heat from cold. It depends on rate and duration of your showers. Using mains pressure, the two showers are going to be...

You've picked the wrong day to ask a silly question as a first post. ;)

Use the image's 'DIYnot BBCode' to insert into forum posts. Another source of draughts can come from under the floor. Even a first floor can be draughty if the joists have not been sealed into the inner leaf.

Will a coffin tank still stick out? As a side benefit, a new CWS tank will comply to modern bye-laws and prevent insects or larger animals getting into potable water storage.

I have similar decisions to make soon. Unvented HWC can use existing boiler and provide main pressure up to 3 bar. They need installing by a plumber with a G3 certificate. You keep the option of an immersion heater as back up. However, you must have adequate flow and pressure from the water...