dpmiller

best thing I ever did was get a clip-on coupler.

cartridge or manual fill, and do you make sure the nipple is clean and not stuck closed first? (oo err...)

^ yup ,that how it works on my Tak too...

is it not a spanner and grease-gun deal?

there's generally drawings supplied to confirm placement and orientation of panels, exact base measurements etc. They'd need to be done as part of the structural design surely?

depends. what do the supplied drawings show?

knowing how much Chinese input there is even in the expensive stuff, I'd say a brand name is costing rather a lot...

3l/min isn't very much surely?

you've TWO invoices?

Hep connector straight onto the end of the copper after you put it through the wall.

SSRs are also available with mains control, if you require, Nick.

or sprung contacts built into the frame, like some car tailgates or Keylite roof windows?

you do use chain oil Dave?

A self-cutting adaptor on the vertical section above the trap? BES 6957 or similar...

but if the expansion vessel has failed, system pressure will alter radically with temperature. Well worth checking the air pressure in the bladder. /that's the tyre valve at the end of the tank.

you're looking at system pressure, not the pressure in the vessel. Perhaps the bladder has failed in the vessel...

agree with Nick. I've seen autoclaves discharging steam from 121+ degrees into bog-standard waste pipe. A couple of minutes is fine, but then energy of a continued discharge is very different to a small volume for a short time.

no reason why not, as long as you go for one with a wireless current sender.

we'll never be able to tell you if you paid too much if we don't know how much you paid... 4k? 8k? more?

these guys are worth a chat, they re-sell the L&C unit and have an optional paid extended warranty package https://www.peakenergyproducts.co.uk/monobloc-ashp-s Andrew is the contact.

It's unlikely that anyone would forget to advertise a unit as being inverter... Cool energy do some BIG boiler-replacement inverters, and told me they have no intention of offering smaller units as inverter. But low starting currents and a range of outputs (eg Cool Energy's 6-18.7), would be a hint.

you might need to give us some numbers- could it be you received the Solaredge unit and optimisers in lieu of a Victron hybrid inverter?

what is where the rectangle shows? Existing shed? as they're running a mahoosive 3-ph cable to that point...

What is the air diffuser like? Is it just a perforated tube? Our Solido Smart has a double-wall diffuser, the outer is a perforated silicone material which balloons out slightly when pressure is applied, allegedly making it self-cleaning...

A quote is not an invoice...