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I have two 1991 MK consumer units, each with 12 used MCB slots. It is a big house, and when we bought it, there were three fuse boards, one for each floor. One of the MK's has loading on it for a cooker (45A MCB, 6mm T&E), an immersion heater (32A MCB, 2.5mm T&E), heat pump (45A MCB, 6mm...

I am in the process of going unvented (as we speak...). I have to use immersion heaters, and the new cylinder has two. I have one feed to the existing immersion. It is on 2.5mm2 T&E and connects to a 32A MCM on the CU. We're adding a DP isolating switch in the cylinder cupboard. Will that...

Thanks everyone for you contributions. I have the induction hob in and working as well as a two ring gas hob. I just love cooking within induction - no excess heat, controllable and my hob has decent heat distribution. And it is easy to clean...

I have an old Mira 8 shower, with valve, hot and cold supply, and mixed water supply to the shower head all embedded in wall plaster and behind tiles. The valve and its connections are accessible by removing a plate, and you can see three connections, presumably 1/2" BSP? The hot and cold...

Thanks all. I've been watching too much Doctor Who

I want to feed a 45A dp switch with two (feed and load) 6mm2 T&E cables fed from behind through a 25mmx25mm hole in a single skinned brick wall, using a plastic surface mount box. I've tried to use a 25mm back box, but it feels very tight when I try to close it, and makes some complaining...

It would take a 3m run to get from the CCU to the hob location - c 2m as the crow flies.... The cooker control unit is installed on a tiled wall and I am not sure if we made provision for running cable in conduit. The cleanest approach by the sound of it would be to run a second radial c. 6m...

I'd be grateful for any comments on this proposed design. Is it OK from a regs viewpoint to have DP isolators downstream from the dual appliance connector? As an alternative, could I just run a new cable back and power it from the same 45A MCB (no spares on the existing CU)? I'm also curious...

I guess to protect the 6mm2 T&E cable?

Thank you once again, very clear.

Final question - I've checked the cable to the 45A MCB. It is c.15mm x c.6mm in dimension, perhaps a bit bigger. Is that sufficient to say whether it is 10mm2 or not? I did the original cable run in 1990, but a professional electrician did the connections. When we had the kitchen redone in...

I'll have to check whether the oven was rated to use 13A supply, but it is directly wired to the mk cooker switch (ie not the integrated with 13A socket). When I did the wiring many years ago, I over specified/engineered everything. Regards and thanks

Well firstly, thanks Sparkxxx as it looks like option B in the attached is possible and that will be very easy for the fitter. And it is very interesting to get different views on induction - passion even. I never thought I would consider "electric", but the new generation seems to be much...

I'm trying to make a decision on whether switch from a gas hob to an induction hob. Specifically, I'd like to understand the electrical work required that is likely to be required and what I might need an electrician to do - if the hassle is to much, I'll leave it in the pending tray. My...

Many thanks Isambard, I understand the below ground issue better now - some (most?) lintels are rated for below ground use (covering sewage pipes etc). In my situation you need to ensure that the ends of the prestressed lintel are encased in impermeable mortar to prevent the steel...

I've planned a conversion of an internal garage into living space using lintels to span a 3.6m gap between walls, which is normally a building regulations compliant approach. I want to put in place floor-to-ceiling doors where the garage door currently stands. The house internal floor is c...

I appreciate the greenhouse effect, though the nature of this kind of solar control glazing aims to reduce the heating effect of sun on glass, so I'm surprised that the surface temperature inside can get to 44C

We had some windows replaced, easterly that catch the morning sun, and I am looking for advice. They are meant to reduce solar gain with a g-value of 35%. The outside pane has the protective coating, the inner is clear. The situation is The outside temperature is 23 Celsius at c. 0900h. The...

Thanks Woody. The reference to lintels and screed is basically around how do you "fix" the lintels in place (if indeed you do need to). You have the vertical load on the lintel from the weight of glazing etc which would be borne ultimately on the bearing at the post footings. Whilst the forces...