dpmiller

I could certainly try, I'd need to kill all the other loads tho as the MVHR probably uses a coouple of hundred watts.

Does look like you're correct, @DamonHD and that it might be something power factor-ish. Book says sub-50mW each but I'm kinda loathe to take as gospel Chinese specs... Both of my CT-monitors, an Owl and a Sava read about the same; are there any low-cost options for more accurate monitoring that'll let me confirm what's going on?

yes, that's very pretty.

Our PV uses six Hoymiles dual microinverters. These have a dark current of around 25W each so the 150 or so Watts that they're supping overnight is a consideration. As I've a twilight switched circuit for the outside lights, any harm in using it to control a contactor, taking the inverters offline at night?

If it was originally a field, would it be worth cutting a trench to try and find existing land drains?

just about every merchants over here...

the Romanian guys that were doing our insulation offered. Three men, four hours, 2600 (7t) heavy clay tiles in bundles of 6 up two lifts of scaff. No idea how they did it... Heck loading them onto the roof off the scaff was hard enough work.

Yes, lower combustion temp = more particulate. It would be intersting to see the proportion of the current parc that is still older (Furo 3 or 4) diesels, DPFs have been around for a long time now....

...which you can't. In diesels, EGR reduces NOx but at the expense of particulates. Hence the DeNOx and AdBlue which scrubs the NOx from a clean burning engine vs the older tech which lowered combustion temps to reduce NOx...

I'd be fairly sure that having the supply fan off or waay too low might unbalance things, but air will still be drawn through the supply. /this is something I haven't yet tested with our system. I can bring the house to a reasonable pressure or vacuum just by running one fan at max and the other at the minimum, I must try sealing one of themain ducts completely and re-trying...

I've installed a flue system that does indeed bring the supply air down from the roof https://www.schiedel.com/uk/products/ceramic-system-chimneys/swift-air/

Try camping in Glentrool forest. Midge central...

if there isn't another bell push at (say) the back door, then there is a transformer somewhere powering it.

Yep, Leyland is PPG too. For reference, I've been associated with the automotive paint trade for almost thirty years now (weighing/mixing IT support) and have also been subbed into retail mixing in Homebase etc. Somewhere 2007-ish as I recall (you can research the complexities if you're bored) the coatings industry was reshuffled before and after European monopolies issues. ICI decorative (Dulux) went to Akzo ICI automotive (Nexa) went to PPG Crown went from Akzo, through a management buyout, to being owned by Hempel. And if you think that's complex, look at the history of Axalta...

Isn't Dulux Akzo Nobel now? PPG retained ICI Nexa in the Automotive sector, but Dulux went away... Johnstones is the PPG architectural brand.

nasty stuff, tissue fixative/ embalming fluid/ carcinogen.

Can't be sure as it was part of our windows contract. But full list in their Doorbuilder (two years ago), including two etched sidelights and a bit of frippery on the glass panel, was £1300 plus vat.

/say howmuch??

competition? or lack thereof?

Apeer is good, we have one. Plenty of resellers in NI...

on the insulation, they supply it on a roll, you cut it to match the circumference of the pipe. So roughly 2m duct per metre of insulation...

put the printer under the body dryer in the bathroom?

...just found our invoice. £100/ hr, but at the end of the day (including fees for mapping and some additional printing and stuff) less than two grand total.

yep, kinda like @Russell griffiths IIRC. Can't put my finger on the invoice just at the moment.

Our guy discounted heavily off his standard rate as there was loads of waiting time and not so much doing.