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Now test the resistance of L to N, and (L and N joined together) to Earth.

I'd be surprised if they can't also record maximum demand (which is routinely surcharged on industrial installations) and so people could pay more for all consumption over about 3kW. This would mostly be heating and car charging anyway.

No. You can test for continuity to earth with a tester and a long lead, but in most cases with flush metal boxes you will have an adequate earth contact through the fixing screws, especially if there is one fixed and one adjustable lug on the back box - and at least adequate enough for a...

70% reflection is pretty severe. I've got 20-25% silver reflective film on a south facing window and it's reasonably effective at cutting glare and the 'sitting in hot sun' effect; not sure about how much it controls solar heat gain generally. The dullness looking out is most noticeable on...

I can't quite see from the photo, and it's not the same circuit board as the one at IntercomsRUs, but behind the cable is there a small rotary control? That may adjust the sounder volume.

Agreed. It also gives a better impression having permanent lighting, which directly or indirectly translates into higher rent and happier tenants.

Well I hope so, as otherwise those busbar terminals need more than a little attention!

https://www.engineshed.scot/ The Engine Shed is Scotland’s dedicated building conservation centre. Part of Historic Environment Scotland, it serves as a central hub for building and conservation professionals and the general public. Free admission in normal times.

ONT = Optical Network Termination. Box that turns optical fibre into unrouted ethernet. The fibre comes through the wall (there is usually a splice point on the outside) and runs to the ONT inside (which requires power). You can have a reasonable length of fibre between the entry point and the...

It says "Bramble signs and designs" :D

I don't see there being any particular safety advantage of one type of heater over another. Stiebel Eltron are a reputable brand and so should be safer than some random unbranded stuff. Obviously maintain safe clearances. If you are concerned about bedding etc falling on the heater then you...

Bentleys should be owner-driven. Rolls Royces are chauffeur-driven.

Is this a house or ground floor flat where a socket might be used to supply equipment outside? Is there an electric shower? (I assume not from the circuits - cooker, sockets, immersion, light?) Is the supplementary bonding in the bathroom missing or incomplete? If any of those is "yes" then...

If it's required at all, it has to be interlinked. (Depending on which range of smoke alarms you've already used) you can interlink radio and hardwired alarms.

If you fit 20mm plastic conduit they may be able to pull the fibre through to where you want it. Or it is possible to buy SC/APC fibre and extension connections and extend at your own risk...

Currently anyone can call themselves an electrician, without the need for any qualifications or competency. The Scottish Government is gathering information and views on whether regulations should be introduced in relation to electricians. While the focus of the consultation is on domestic work...

Forget the bath, and in winter a 10-12kW electric shower is probably going to be a bit disappointing, certainly not "the stronger the better". I would look at a hot water cylinder with 2 x 3kW immersion heaters which would provide a reasonably quick heating-up time when first arriving at the...

Discounted Stamps have them at up to 6% discount, or more if you buy sheets https://www.discountedstamps.co.uk/product-category/1st-class-stamps They might not be the new colours but that doesn't stop them being valid

If the tenants changed to a non-Economy 7 tariff and you have a dual-tariff smartmeter or key meter, the E7 output may be turned off by the supplier electronically.

Probably a cam lock on the door, and either a groove or a little metal bracket on the carcase for the lock tongue to engage into. https://www.screwfix.com/c/security-ironmongery/cabinet-locks/cat810286 You can also get code locks intended for lockers and similar situations...