dpmiller

how much gas remains in the tank?

I've gone with Klik sockets rather than 5A although I believe they're now discontinued in the 1-gang format. Gives the option of switched or permanent live (or a second switched service if necessary) and they're nice and finger-safe too. Klik ceiling roses too.

It's inverter. One very quick look at the schematic shows the compressor as having three connections WUV. Means 3-phase...

Sitrep. Cooker *did* arrive, operation festive food was a success. Still waiting for the shed More tiling done. Now... interesting stat time. Current abode is about 700sqft and not incredibly hard to heat in my experience. I put 500l of oil in the tank at the start of December and looking at the tank I'll be ordering oil again next week. While the previous purchase was about £260 it'll now be about £320 for the same quantity In comparison, I got the quarterly electric bill for the new place last week- £340, or 1860kWh. For 2700sqft...

where in the world are you?

so it's a spur off a spur? Where is this one powered from then? No earth sleeving where you come from?

can a gennie- specifically the more efficient inverter ones- clamp the output of the solar inverters sufficiently to stop overvoltage trip outs?

@Dan F I was referring to the ASHP pump.

I'm kinda surprised that @Dan F's unit doesn't have a variable-speed pump, are the big-name ASHPs not generally equipped with this? Our Cool Energy does, and it's well used as part of the modulation strategy.

Chinesium hot water tap is tankless, but how about just putting a drain-down valve on the supply so you can isolate and drain down the line between occasional uses in cold weather?

@ProDave sorry if I missed it but have you tried the head office in Austria?

@ProDave here's some blurb from Honeywell- https://youlearn.honeywellhome.com/uploads/documents/FAQ_-_Optimisation.pdf

It's like the "optimum start" feature on some older digital roomstats- they learn the rate-of-change of the room/house and re-start from the setback temp in time to have regained temperature at a selected time. The lower the internal temp falls overnight, the earlier the heat comes on. but as @Marvin alludes, how much of a point there is to this in a well-insulated property with an ASHP, is questionable

@vala no, the boiler stat is a final protective really, the buffer controls should be doing the work. If the house is being heated well in all situations you might consider having a smaller jet fitted to the boiler to reduce it's capacity a bit?

turn it up a bit.

yes. boiler stats tend to have quite a wide hysteresis so if it's clicked off, the water could need to drop 5-15C before the boiler will cut in again

will the microinverters play nice with the gennie or will their smoke leak out?

ours has been off for a number of hours (3-12) three times since we got the mains connected.

Surely the boiler stat has the veto here?

I note that the comments negating the likelihood of outages *aren't* coming from folk that live out in the sticks where power is HV *and* LV overhead...

I've a number of Hoymiles microinverters and the required wifi bridge. Setting up the account was a bit of a faff (as I was the "installer" as well as the "user") but the App itself is great, I really can't ccmplain.

why is the RHI so important?

Something must've changed over the years- 3-bar electric fires and various other 3kW heaters also used to work off a plug just fine back in the day, but nowadays a 2.5kW tumbledryer overheat a plug. And don't start me on 3kW elements in Water stills that run all day long, on a 13A plug...

@Nickfromwales why would it be Solaredge if he's got Tigo smart panels?

I'm intrigued by the other unnecessary gizmo in the loft- was it a WIFI bridge for monitoring? With some systems it's a mandatory requirement for G9x compliance... You still haven't told us what inverter you have.