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I normally use 3 core and earth 1mm cable. Fan consumption typically 25W or 0.1A so tiny. Nothing wrong but only really need round 4 core cable in areas needing IPx4 protection - swimming pools! I ensure Yellow goes to light switch on switch live side. Rest Live, neutral and earth.

Reckon thermostatic valves are the easiest modification. However an alternative is using motorised valves for zone control with separate room thermostats. Plumbing might need modification as you would need to split circuit. Your problem would not have arisen if radiators were sized correctly for...

I think if you look at your stairs they will be fairly rough underneath. Taking riser away will need some reinforcement to prevent movement. I have not seen it done as a modification so best of luck.

I watched tilers spread tile adhesive straight onto plywood. Then waited an hour and finished job by coloured grout to joints. This was walkable with care but best left for a day. As floor tiles so expensive and job so quick you might consider letting them do the cutting and placing. Tiler will...

Stop twiddling! Your system sounds like it is full of crud and air due to lack of inhibitor. Your boiler may be noisy due to buildup of scale if in hardwater are. Ensure you have correct cleaner for your system and follow instructions properly. After that put in correct inhibitor. Then bleed all...

(1) Why did it blow? Was equipment damaged. (2) Check appliance lead for damage. (3) Check plug wiring. Cable sheath should be clamped properly by two screws near outlet. Ensure live as short as possible, some slack on neutral and earth. Tighten lead connection and clamp. (4) Check fuse...

Screw 10mm marine ply every 6in to prevent movement in future.

Rather than bodge an existing staircase you could go for one of those glass stairs with steel frame. Would not you be better putting a bigger or another window in?

Intrigued by 'design of heating element can make all the difference'. All any heating element does is heat water passing by it. Providing it heats at rated power that is all that is required!

Mere youngster. Our floor based boiler was over 35 years old, solid reliable castiron until SWMBO demanded dinky wall mounted boiler. Dislike as looks flimsy but at least it is not one of those costly unreliable condensing boilers. Do not panic just because gas man gloomily says cannot get...

Do not know this unit but assume it is the old rewirable fuses. Wylex may still make them. If you have tried local electrician suppliers most electricians will probably have a few they have taken out. However if you are after consumer unit fuses similar to plug fuses but bigger QVS do them but...

I think your local water supplier may do it for you at your house for free. Unless you need to know exacly they will probably keep records at a nearby point in the system over the year. Probably it will be in range 1-3 bar. If you are an unfortunate at the end of a supply line it can drop to...

No problem re emissions with tiles except initially to person gluing down. Are you sure floor is level enough to properly support new wooden floor? Could some tiles be loose?

Nothing wrong with thermostatic valves but if people would calculate heat losses before purchasing correct radiator sizes they could save some money. Easy replacement job. If you loose central heating water do not forget correct inhibitor.

Interesting problem. I have had this happen rarely on a circular bathroom light. As I see it the switch cuts off live. However may you have some stored charge in a capacitor depending on phase of voltage cycle. The only circuit available is the neutral and earth. Current returning by neutral is...

I think when you removed the large silver screw you exposed the rotor end. When you turned this a small leak of water should appear. Pumps often jamb if crud gets jammed in the impellor. All you did was free the pump. However the pump may be failing and on switching on again it may not go. Pumps...

This is why you should always do wiring inside conduits. I use Ega oval plastic conduit which fits into holes in metal box in wall. There are ways such as chock blocks and short lengths of cable to new switch. However I would prefer to recut channel and put new wiring in conduit. Your wiring is...

Yes, I am still researching into use of lime. I recommend you look at article http://www.periodproperty.co.uk/article010.htm If page not found go to main heading and work down. Concensus is moving away from lime cement sand mixtures to replace cement with other additives to make it set as...

Genius. Great use of iron! ________________________________ locked to prevent hi jacking

Bit puzzled. I have only seen expansion joints in boundary walls. I assume this is your house which has slightly settled. This is quite common in older properties. Unfortunately the 'professionals' use a strong cement based mortar so bricks crack instead of the mortar. Rather than removing...