dpmiller

I've an open-vented thermalstore with *big* coils for the ASHP and DHW.

what weight is the filter, and what size of granule? First one gives a clue about how much you can adsorb, second is related to flow restriction and rate of adsorption. / used to spend a lot of time working on duct-free fume cupboards...

Actually, I have a natural aversion to "brands" in general, knowing how much badge engineering goes on these days. In seriousness tho, it seems one of the major issues wth the snazzy stuff is the controller and manual. The Cool Energy unit has a complete suite of Carel control equipment- inverter, controller, expansion valve, sensors- which are used and understood pretty well in the commercial refrigeration game and is pretty much Plain English to program and operate. It has nice simple inputs and outputs too. Heating flow at a good COP? check. Useful maximum flow temp? check. Good cooling performance? check. Reasonable warranty? check.

It is Dave, the iVT9 is a pretty impressive unit

8.5kW, same as mine ?

you've likely taken paint off a joint or blemish. Matching touch-up time.

why do you care it they're looking- Are you doing something wrong?

what lengths are the other loops in the design? System will balance best if all the loops are similar-ish.

two Qs. Do you really want to be traipsing up and down stairs to the laundry every time? Are you actually allowed (by your DNO) to have you meters such a comvoluted journey from the front of the house?

Series connection could do it, the return from the 5C circuit would be a bit warmer...

chop the restrictor out, do the rest in 32mm, and you'll be happy I'll bet.

personally, I think you're mad too...

Don't discount wastewater heat recovery on the most frequently-used showers too...

quicker than my guy for sure. Looks great conor.

clips are available too.

That's the same unit @H F (weren't they Home Farm before?) had IIRC

just the ends

Here they just direct bury into your pre-dug trench. No duct, just marker tape.

If so, no stub cill required IMO. I know they are common in England but over here the frame is generally just set on top of the boot cill with the frame overhanging outside slightly.

No. On the outside is there a gap between the concrete cill and the timber one? Like the concrete sits up in a ridge at the back. And does the concrete one have a good slope on it?

Is there no upstand at the back of the concrete cill?

in which case the door supplier already had the opportunity to correctly measure surely?

have you looked at both your neighbours for stacks? @Conor

floor/tiles/ UFH pipes?

the Youtube comments are priceless!