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Hi, this involves a new oven and hob supply in a kitchen. I'm aware of Part P and notification. Is the following acceptable please? Am I correct in thinking T&E burried direct in plaster in a concrete wall has the same CCC as "clipped direct" = 47A for 6mm T&E? If so, is it acceptable to...

Thanks everyone for all your replies, they are appreciated. I obviously want a safe and correct installation! In reply to above, I was only questioning it as I have seen two installs that work fine and pass CP12 tests (hence working pressure ok I assume): Firstly a similar install with 15mm...

Thanks for your quick reply! Fair enough if the guy is correct, but if my installation needs 28mm pipe, how come a similar length installation with 15mm pipe and plenty of bends works fine and passes the CP12 tests!? Not sure about steel pipe size, it's OD is similar to 22mm copper, there...

Hi, firstly I'm not a plumber and I'd like to make that clear. You mention the shower being the reason for the warrantee not applying - did Heateam specifically mention that it was a pumped shower that caused it to fail, or just your shower? I.e. if they are saying it is your shower, then...

Hi, I have had a plumber round to quote for fitting a new Vaillant boiler to a small 2 bed, 1 bathroom house. There is existing iron pipe (I think, definitely not copper as it has threaded fittings) under the floor that feeds a gas fire via a reducer and then normal 15mm copper pipe. I was...

Just noticed the OP was in 2008, lol.

I have one of these tanks - it takes about 4 mins for the water to stop flowing out of the tap and then about 6 mins of holding that T&P valve on the cylinder open. My understanding of how the cylinder works is that when you open the T&P valve nothing should come out (be seen in the tundish)...

Just another thought - you could stick with a normal boiler for the house and use an electric heat pump for the pool. 40kW output units are available and can effectively be 500% efficient, so are cheaper to run as gas is not 5 times cheaper than electricity and is only low 90s% efficient. If...

Hi, I’m not a plumber, but I do design and work with large control systems. For important projects redundancy will always be used. So although two boilers may have more parts than one, using two boilers gives the availability of the other one when one breaks down or needs servicing. From...

Hi, he seemed familiar with the Megaflo tank and was expecting the second isolation valve, etc. I will ask if he has the cert to work on the tank, what should I ask about, is it G3? I obviously want to end up with a safe and also working system so won’t ask him to do anything he doesn’t want...

Hi, thanks for the quick replies - bypass seems the obvious solution. Sorry for the block of text. Reading through other posts looking for an answer people often asked for more info so I thought I'd put it!

Hi, I would like to know how to wire a mid position and Megaflo safety isolation valve into a CH/HW system, but for a boiler that has a pump run on. Are there any modifications to the normal Y plan wiring (plus safety valve) as it looks like on HW only if the tank stat is satisfied the safety...

lol, you could see that coming :-)

Thanks, that pipe work sizing table looks very interesting – with 15mm pipes it looks like I will only get about 1/3 or less of the boiler’s power into the CH. I’m assuming that table is for average flow rates? Does anyone know if the Valient ecoTec+ 630 pump has different speed settings...

I'm impressed by the quick responses - thanks! Boiler is a Vaillant ecoTEC plus 630. You’re right, the house isn’t that big, but I had the boiler already and the fitter said it would be ok as it would just modulate down like you said. There are quite a few people having baths and long...

Hi, I'm having a new system boiler fitted in the loft and it will connect to the existing Megaflo indirect tank for hot water. The boiler and tank are very close. I also want to connect the central heating which is all done in 15mm pipe (old heating system added to an even older back...

Hi, thanks for all the info. I agree 7mA for the microwave seems high, but it’s an inverter type which enables it to actually operate at say half power rather than just cycling on and off like a normal one. Doesn’t seem to make the food any better though, lol. I think inverters are...

Great, thanks for your reply. It sounds like the best option is to have the existing 30mA RCD removed and have a CU fitted with an RCBO on each circuit. The house is only small so the cost is worth it to not have everything trip at once and it will make finding any fault much easier! I...

Hi, I think I have a TT supply sourced from a neighbour’s supply next door (terraced house built in 50’s). Although it looks like the neighbour has a TNS or TNCS supply, for some reason only a Line and Neutral are fed through to my supply, no Earth. Does anyone know any reason why no Earth may...

Hi, I'm refitting an awkwardly shaped kitchen that's in a 30's house. The kitchen isn't tiny, but arranging everything is difficult as there are a number of things like several windows, 3 doors plus under stairs storage area access, boiler on the wall, positions of water connections, etc that...