Tom

Ah, great, thanks @JohnMo. I have the flooring in boxes inside aclimatising - guess that's right?

There are inevitable delays with our ASHP install which means our floor, which was up to temp by using our temporary electric boiler (which is now off line), is now cooling down. Our engineered oak parquet is due to go down next week and I can't get a straight answer from anyone whether this should be delayed until the ASHP is up and running and the floor warm again - thoughts?

Thanks Nick, I'll let the plumber stick with his one then (https://www.toolstation.com/osma-hepvo-pp-tundish-adaptor-kit-wt/p98120?store=RJ&utm_source=googleshopping&utm_medium=feed&utm_campaign=googleshoppingfeed&mkwid=_dc&pcrid=null&pkw=null&pmt=null&gad_source=1&gclid=CjwKCAjwh4-wBhB3EiwAeJsppLV0sVazuV9u0Aor8J5kX5w_mP1RCZXzZY7-CLSO6EVl1x48HWfYvxoCP0gQAvD_BwE&gclsrc=aw.ds ) as seems the same design as the McAlpine one. Right, bed, perchance to dream

Thanks both, are either of those actually room sealed though? Is that even possible with a tundish?

This one? https://www.screwfix.com/p/mcalpine-tundish-19-23mm-x-19-23mm/5684V?tc=DA8&gad_source=1&gclid=CjwKCAjwh4-wBhB3EiwAeJsppOoNmoQrdFmiKuTRVnWhjt4znl0ka_q5qwHJ-E3ZDxPfHI4UNtL00BoCY1gQAvD_BwE&gclsrc=aw.ds Looks like can't be used as actual tundish for a UVC though, judging by the feedback

Am I going mad or did I read something on here recently about airtight tundishes? Search function doesn't cpome up with anything. Our UVC is going in now and the chap wants to install one fo these https://www.toolstation.com/osma-hepvo-pp-tundish-adaptor-kit-wt/p98120?store=RJ&utm_source=googleshopping&utm_medium=feed&utm_campaign=googleshoppingfeed&mkwid=_dc&pcrid=null&pkw=null&pmt=null&gad_source=1&gclid=CjwKCAjwh4-wBhB3EiwAeJsppLV0sVazuV9u0Aor8J5kX5w_mP1RCZXzZY7-CLSO6EVl1x48HWfYvxoCP0gQAvD_BwE&gclsrc=aw.ds which doesn't seem too airtight to me. Can anyone put me out of my misery?

Suere, it's GreenGenUK. Hope I haven't fallen foul of the forum rules for posting that

That's exactly the quote I got, due to be installed next week. I wonder if it's the same people (near Helston IIRC)

I approached BG to do ours, but they refused to do it as we had 3 phase at the property. Even though they would be wiring it up to a single phase consumer unit. Go figure.

Hmmm, I'd like to see the small print!

Aaaah, THAT sort of erection. My bad.

Thanks @SuperJohnG, we regularly test the water and other than a period when we had some iron contamination the stuffs fine! However given that we will shortly be introducing a 300l culture vessel I guess UV might be prudent

I guess comes down to depth/location etc of the borehole. We've survived up until now! How effective are UV sterilisers anyway?

No UV for me! Been fine for the last 3 years, but I wonder if using a UVC in the build changes things. Gas boiler in the caravan up until now

We're on a borehole supply which is unfiltered/treated - I wonder what I can culture in the UVC?

Makes perfect sense, just thought it would be one of those brainless requirements that you are obliged to meet.

Why so?

Yep! I'll raise a glass to you this evening Steamy

Ah gotcha, we're on a FIT which is about 15 years old I think, so quite good rates and with another 10 years to run IIRC. So for the moment there is no point returning any to the grid if we can use it - economics change when this finishes I guess, as above.

Thanks @Conor, but I'm not sure I follow. I thought the diverted allows you to use your excess PV generation but you also get your FIT for the generation - whether younise it or it enters the grid?

Ah cool, I was looking at the Eddi diverter - guess it will do the same

Hi all - we are having our ASHP and UVC installed in a few weeks and would like to make sure we will be making the most of our PV. We have approx 12kW on the roof and will be diverting what we can to the immersion - what's the most efficient/best way to set up the UVC so we are making best use of this energy throughout the year? The installers have told me the UVC will be a Telford Tempest (300l) and will have two immersion elements - the lowest being for the legionella cycle. Can this element also be used for diverted PV power? I'm guessing the diverter would dump the power to the upper most element first, and then switch to the lower element when the top is up to temp. Is that right? Are diverters that sophisticated? Thanks all

Might it be simpler/easier/cheaper to make an insulated "tent" inside this to use as habitable space? Other than that I'm afraid I'm fresh out of ideas. Would your architect not have a plan in this respect?

Reasonable to ask I guess Steve, but then why start the thread with:

In other news, I asked the plumber to put some inhibitor in when he filled the system again, as it seems he didn't bother first time around. Currently just hooked up to an electric boiler but soon will be an ASHP - is this the right stuff to use in this situation?