dpmiller

tray or wetroom former?

FCUs, like 13A plug tops, don't like running continuously at 13A...

He's having a laugh. He looks like he's comparing to one of them rotary jobbies with the motor in the sh*te, but even at that... Air blower units only use about 50W, and the blower often doesn't run 24/7

Inside the outdoor unit?

surely in the grand scheme of things the design and commissioning of some ductwork (and the VAT on it) is an almost-irrelevant cost? And you could commission it yourself if you wanted to, as well...

Hang on, is your patio a RoW, or is there laneway/back entry/street behind it?

Cordless drill, length of stud iron, bits of timber etc, you can do it if you need to

Our Howdens order had neither missings nor odds.

Glaze is pretty smooth, the thickness may vary with quality. But a wipe of a good car polish inside the bowl will make even shiny glaze shinier and stop things from sticking

MCS list the SCOP at various flow temps plus there's the attached: CE-iVT9 EN14825 64.181.20.04362.01 Rev.00 TR Performance Pages.pdf

I see the view, and don't care about the floor covering. It's gorgeous, I'm very jealous.

that looks like a 28mm valve with reducers to 22mm??

I went the constructional hearth route, but built off the subfloor with thermal blocks to minimise thermal bridging. The edge foam for the screed went around this.

Uni ridge plus rollout dry ridge? https://www.sigroofing.ie/products/clay-tiles/siga-clay-tiles/dura-ridge-tile-overview/ we got ours from LBS but it's the same product.

yes.

"normal" British wiring has the loops and neutrals up at the ceiling rose so you don't need to consider that fourth terminal at all.

Ignore the loop terminal. The wires that were in the bottom of the old switch should be in the top left of the new (all from rear as per the photo). Common. The two terminals at the top of the old switch are the two on the Right of the new one. Put the wires in these, in the SAME combinations as before.

you can do your own design SAP

Our framers seemed to use nothing other than a chainsaw for the whole cut roof...

Don't be too precious about the whole thing, the battens won't be perfect either...

There are worse smells even than that, I could write a book...

where will the outside tap be?

It's the Harlequin Heatstream tank, but I don't know what mods if any they've done to suit the particular app. I'm thinking more of their zoning/ hydraulic seperation technique- a PWM-controlled pump for each zone with all control from the fancy touchscreen. It does seemed to be aimed more at the commercial/ small school/ nursing home scenario where cascading is a benefit.

sounds wrong, I got 5.7kWh today up here, and conditions were "less than optimal" lol

Red do things their own way, so make sure it's someone who reads and understands the blurb...