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I think the MVHR argument isn't so much about money/payback period or even heating bill savings; it's more to do with controlled ventilation being a positive to a healthier and better smelling home, with the heat recovery aspect playing second fiddle. Uncontrolled ventilation can't really...

Roll on MVHR becoming mandatory

Plus, it's pretty easy to dig a hole in dry ground to unearth a pipe and get in to repair it. In a flooded location there's the additional complication that what you're trying to repair is under water, and there's a struggle to pump the dirty water away so it's no longer submerged

It'll probably say on the bottle whether it's a plasticiser too. Covering it up is a good call - amazing how as low tech as a blanket can be sufficient to keep just enough warmth in the materials to stop the mortar freezing as the temp drops below 0. If it's sustained, it won't help, of course...

At a recent wedding I was in conversation with the vicar about the apparent damp patches on the underside of the church roof - large sections of the ceiling plasterwork were black or discoloured, spreading down some walls. It wasn't particularly ornate plasterwork or woodwork, though apparently...

Mechanical ventilation is the next step

Mortar sets by a crystalline growth reaction in the cement, which is unfortunately slower than the crystalline growth of water crystals when water freezes; if the water in your mortar freezes it expands and weakens/breaks up the curing mortar, meaning it may never cure and harden properly. In...

Some doorcase, that!

Ideal do push-only (no lever) 2/3/4 ways that are good for 4mm and 32A - they're demountable by pulling and twisting - not as fast as a lever, but I guess you only really use a lever if you make a mistake Never used those but the dexterity required to loop two x 3 solid cores into the JBs...

Surely, then, it's within 6 inches of the horizontal or vertical axis of a socket? (sorry)

At first I thought you meant to fix to the plasterboard! I'd assume your method is: - locate good bricks (nearly full, not a quarter for example) near where the hinges of the door will go - dab the plasterboard onto these bricks - fix the hinge case leg through the plasterboard and into these...

Having used both, I have to say I prefer the Ideal connectors (https://www.screwfix.com/p/ideal-3-port-lever-wire-connectors-24a-pack-of-40/4198g) over the Wagos, for a few reasons: - Cheaper - Don't have to lift the lever to insert solid cores - Transparent so you can check the connection (vs...

One of the wonderful things about having these ridiculously expensive dimmer modules is that is makes N-way switching a doddle - the dimmer has 2 switch terminals that need to be shorted to get it to do something, so you can have any number of switches on a 2C+e, in parallel. Note though that...

Indeed, but I'd worked out, on a faulty premise, that 3C via was enough. Dare say it'd have made the switches ridiculously busy having four 3C+e in a back box(2x to rose and 2x to slave switch as well as the short bits of multi strand flex to stop the solid core making life hard work for...

It depends on the house I suppose; pretty sure in mine it'd be easier to GOP a hole in a plasterboard wall than it would to lift any of the glued-and-ringnailed-22mm-tng-8x2 flooring boards.. and I did put 3C+e between rose and switch; I just wish I'd put 7 cores instead because I ended up with...

Why would you go looking in a ceiling for a perm live, in a house that is looped in at the switches? The cost of running spare cables is a few pence while a house is being built? In the same way that carmakers have an options list, you should make a list of this plethora that comes to mind-...

Post wiring my place up loop-at-rose style I found myself wishing it had been done at the switch instead, because the dimmer modules (Fibaro) had two switch terminals and there were two lighting circuits per room. I suppose I could also have had a 7 core (or 2x 3C+e)run between rose and switch...

Likely pointless as if it was done in 2013, it's beyond the time limit for enforcement

I Was under the impression that contactor and relay were synonymous. Suffice to say, using one of these was the overall idea...

once upon a time, my heating system was to be like other underfloor systems - a bunch of thermostats connnected to a wiring centre, underfloor pump connected to wiring centre, air source heat pump also connected. Wiring centre runs off a ring final. Stat calls for heat, wiring centre sends power...