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Yes, 63A is what I thought, but I'm not sure how the cable is installed without further investigation. Otherwise the rating for 10mm is 43A isn't it? So the shower and heater would be slightly too much? If putting the heater on the sockets circuit, I don't believe there is RCD protection. Would...

Sorry, I'd edited previous post. After a bit of detective work via phone, it is 40A MCB in the consumer unit, 10mm cable to an external 80A RCD, 10mm cable to a pull cord switch, and 10mm cable to shower. My calculation for shower and heater is 11500kW / 240V = 48A. Would it be possible to...

Shower is Triton Aquatronic 4 Ultra... Appears to be 9.5kW? Sorry the cable sizes and MCB are not as previously stated. I am trying to look into this... What would the cable size and MCB need to be for the 2kW heater and 9.5kW shower on a radial circuit?

Heater is 2kW. I've just asked if he can find out the shower's model number. I'm waiting to hear back, but I'm already thinking it is not an option now, unless the shower is quite a bit less than 7.6kW (maximum load for 40A being around 9.6kW)?

My dad wants to install a Winterwarm WWDF20N bathroom heater. As the heater needs to be fused at 13A, he was going to add this to the shower's circuit which has a 40A MCB protected by RCD, and is a 10mm radial circuit... Basically spur off 10mm, double pole FCU 13A, then 2.5mm to heater. I...

The intermediate support beam, if required, would be approx 2.5m long.

We are looking to remove a ground floor wall which appears to provide intermediate support for the first floor joists. From looking at various building regs tables it appears that removing the wall may cause the span to exceed the maximum allowed amount. The house wasn't exactly built to the...

Thanks for the help. (Wiring will be fixed so will use what I already have. Didn't want to pick up flex when I already have ample supply of T&E)

Got it. The wording wasn't very clear. So the thermostat is volt-free, but can alternatively be used for 240V switching if putting the L-2 link in (which would not be the intended use with our boiler). I was going to use two T&Es for the wiring. The one being used for the 24V connections will...

OK, that makes sense. Where I'm still a bit confused in applying that to what we have. The thermostat is mains powered (230V) but volt free? So does that mean using the mains supply the thermostat's mains supply connections, and the boiler's 24V connectors for the thermostat's comms connections...

Maybe I'm misinterpreting the instructions, but to me this appears to be a contradiction. The internal wiring diagram for the Horstmann Thermoplus AS1 states that "A link L - 2 is required for mains Voltage applications", while the other wiring diagram states that "Terminals L - 2 should not be...

"2m horizontally from any rad" - is that accurate? Doesn't give me many options. :laugh:

Mods moved the post due to "hijacking" my own thread. ;)

Might aswell ask this here... We're almost ready to have the central heating system connected up to the boiler and will be arranging to have the new guy back to fit trvs, connect pipework to boiler, flush the system, balance rads, etc. I need to install a wired programmable thermostat. Though...

The inside is already flush between both walls and to keep the entire internal wall flush we are prepared to lose a small amount of internal space so whatever option is used will be applied across the full width. Making the outside flush would be a problem as 1) above the ground floor, the...

We have a exterior wall section of our house's main building that is single skin and so am slightly concerned for condensation and potential water penetration due to lack of insulation. The wall is currently bare brick on both sides. I understand from a bit of searching that there may be a few...

Irrelevant now as it's resolved. But I never touched anything. - Faulty loop is possible but doubtful. More likely left open. Compression joints weeping. - Gas leak. - No PRV run. And from re-reading the original quote's description I think there was no intention to install it as it was not...

You are absolutely right, and I really let myself down since people usually have to gain my trust anyway, but I am very aware of those very things and have had my fair share of experience with "qualified" persons who are sub par in other areas of life like those you mention. I slipped up but I...

This does seem like the best idea to me.

They are both overlaps. Would there be any issue with just filling and feathering out where visible joins are?