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Hi, I'm planning to put a WC+sink vanity unit in bathroom, and the soil pipe needs to exit at the side. Can I use a pan connector with integral pipe boss horizontally (parallel with floor), or must they only be used so that the waste drops into the soil pipe from the top? If it's...

I've got 2 rails with 150W heaters to wire in. As I've got a spare channel on old central heating timer switch, I was going to power them through that in series. The timer switch is already being used for the hot water so is already on a fused spur. Is this in accordance with the current...

I've seen a few links to the calculator on this site, and I was wondering if I need to apply diversity before entering the circuit power? http://www.tlc-direct.co.uk/Technical/Charts/VoltageDrop.html

I'm moving a kitchen, and have an 8m waste run from dishwasher and sink to the soil stack, with a 90 deg bend and a dog leg round a chimmney stack. Should I be using 40mm, or 50mm with AAV?

I'm moving my kitchen from one side of the house to the other as part of an extension. The existing house has just one ring main off an RCD, and I'd like to add 3 more sockets for the new kitchen. It seems a bit excessive, but should these be on a new ring main, or can they be added to the...

I'm planning the wiring on a 2 storey extension. Current CU is full, with the following ccts: RCD(40A shower, 32A sockets), MCB(6A lights up,6A lights down,6A smoke, 32A cooker). Current loading on lighting circuits is 590W upstairs and 840W downstairs. The new lighting will give an extra...

I've seen general estimates for extensions quoted per sq m. Is there a different per sq m price for single and double storey? Assuming the size in sq m is doubled for a two storey. I would expect it to be less for double, as the roof and foundation costs will be the same, apart from extra...

I've moved into a house with a floor standing Glowworm hideaway 100b, approximately 20 yr old. The system is (was) a slighly unorthodox s-plan, with the pump on the return and the heating valve on the flow and hw valve on the return. It's an open vented system, with the feed and vent coming from...

I have an old (20yr) gloworm hideaway floor standing boiler coupled to a fully pumped s-plan sytem. The pump is on the return at the moment and i want to put it on the feed as it's a bit noisy. It's a long story about a back boiler being removed and the feed and vent going to the old back...