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Is it possible to buy a vent that will allow a cooker extractor to vent through the roof. The roof is slate and it would need to be as unobtrusive as possible. Thanks

Is it correct that the Underfloor heating and the insulation below it are all below the DPC in the walls, and that the screed would be at the wall DPC height.

I am a diyer doing a self build. i do intend getting a plumber but will also be doing work myself.

What about using 10mm to the rads and the taps. Maybe using the John Guest manifold that is a 22mm to 10mm with 4 10mm outlets.

How do I wok out wha pipe sizes I need to run both for central heating and hot/cold to bathrooms and kitchens. There are instances where there are two ensuites next to each other and I was thinking of 22mm and spur off with 15mm to the taps. For the rads something similar.

Is it OK to run plastic plumbing pipe on top of the slab in the insulation under the under floor heating.[/i]

Yea OK - Only asking :) Thanks Now where was my wine!

Yes I think they maybe - are there any other types and where is the best place to buy the Hellerman ones? Thanks again.

can you point me to where I can get these. Thanks

Could be - the clear ones - they have a small internal release mechanism, are rectangle with a ridge at the cable end.

Had a look at WAGO website but they don't seem to be the same thing. These don't have levers and are maybe 5mm thick.

An electrician used some small push fit cable connectors to join cable to loop in at the switch. Does anybody know where I can get such things. All I can find on searching the Internet is strip connectors.

Has anybody fitted one of these electric showers? The instructions state that the cable clamp must be used and I can see it on the diagram but there does not seem to be one on the shower?

Is it mandatory to fit a non return valve to an electric shower inlet?

So can they be fed from a tank and direct from mains? If they are pumped i would have thought they would need a tank.

I want to have wo new showers installed. We have one on a combi boiler frm mains, but was thnking of the two additional showers being electric. The water pressure is not great but feeds the combi fed showr OK. Would it be a good idea to install a tank and feed the new showers from that?

Garage is detached and it is not living space. A Part P electrician is doing the work.

No no-the house has one and this is a little extra addition that is separate from the house.

There is a consumer unit in there already, it is near the door and has never been a problem but we are adding a shower, a cooker more sockets an attached summer room etc. so the unit needs upgrading.

Does a consumer unit in a garage have to be a "Garage" consumer unit and IP rated or can a normal house unit do. The Garage units that I have seen do not have many mcb spaces. :roll: