Nickfromwales

Not without trickle vents?

Got one on the go (certified PH) in Bow Brickhill, but that’s on stop atm as they ran out of funds. I’ll seek you out when they find the pot of gold they need to get going again….not holding my breath atm though

You get a feel for it. Brass on brass should be assembled with pipe jointing compound, or PTFE (liquid or regular tape). An indicator of it not being tight enough is by it leaking obvs…. Then just a 1/4 turn tweak at a time until it’s not.

My point is, to get anywhere even close to the performance gas, a luxury we’ve become used to, and to have very high kw ratings on tap (without the need to wait for the energy to ramp up) then the options for heat pumps are non cost effective, impractical, and very much not on the table. BTW, I didn’t pick the biggest one to be obtuse, I picked it because that’s the one that stands any chance of matching the performance of a high kw gas appliance. So basically you need a heat pump that’s exactly the size of a small garden shed!! And you need maintenance / service / repair access as per MI’s. Remembering that this thread is being replied to specifically to answer the OP, for which we need to get a result for that unique enquiry, hence generalising about HP’s isn’t of any real relevance here; plenty of ASHP / GSHP chat on here for every other situation. How to get continuous DHW, not from a heat pump; unless you’ve a very big back garden, a spare bedroom for the UVC, and a massive budget.

You won’t. If you were using a kango demolition hammer I’d be slightly worried, but either stitch drilling it or diamond core drilling will be zero detriment.

Probably....but still happy to stay up and argue the toss.

That's "then" and the OP wants "now" solutions?

You lied about your age...you're clearly in your late 70's lol.

If you have 8' x 8' x 5' of space (plus surrounding areas clearances)...... / 4 ELM DIMENSIONS // B C A Unit Elm 75/60kW LN Elm 75/60kW SN Elm 105/70kW LN Height ‘A’ (mm) 2400 Width ‘B’ (mm) 2354 Depth ‘C’ (mm) 1455 Operating Weight (kg) Shipping Weight (kg) 1850

What if the ASHP option cannot provide sufficient oomph, as per the OP's request, then do you steer back to gas regardless due to necessity? Guilty as charged. Send him down.

You said when he 'has to go to ASHP', so I'm charging you with entrapment.

Yes to PTFE, but if easier you can buy liquid PTFE / joint 'glue' and leave these to cure as per the instructions. https://ukradiators.com/products/that-rapid-blu-stuff-liquid-ptfe-tape-50ml?nbt=nb%3Aadwords%3Ax%3A22500772236%3A%3A&nb_adtype=pla&nb_kwd=&nb_ti=&nb_mi=290210051&nb_pc=online&nb_pi=shopify_GB_14870046245237_54875791294837&nb_ppi=&nb_placement=&nb_li_ms=&nb_lp_ms=&nb_fii=&nb_ap=&nb_mt=&tw_source=google&tw_adid=&tw_campaign=22500772236&tw_kwdid=&gad_source=1&gad_campaignid=22500719472&gbraid=0AAAAADoz-xFD0GR_UGIhNwyTm5D5bA2MB&gclid=CjwKCAjwxfjGBhAUEiwAKWPwDpxdLx0vas8vgmw0X3OdlWk7TJTAewnN_f5QFpeBD7OxQ_Slagyi9BoCzPwQAvD_BwE

48's fine for the mixer. The nuts, olives and inserts will separate from the unions, and then you fit the unions to the new unit, and then simply screw the nuts and pipe back on.

Nope! Proceed to the CT1 shop this exact minute and deviate-ye-not from'th the plan. Don't worry about taking it apart again afterwards, because if you're at that point then the CT1 behind a few things will be the very least of your worries

Some of the big sheds are cheap for plaster / plasterboards / insulation etc. You just have to keep doing the legwork if you want to save £££, but sometimes you just don't have enough hours in a day to be splitting smaller hairs. If there are big chunks of stuff, then email it off for a quote as early on as you can to get some yardsticks.

Don't use a gypsum screed, use Cemfloor instead and then no need to feck about taking off what you just paid to put down

Indeed, lol. That's if the NHS outlives the gas supply.......

With my knees I'll be signing up at Dignitas at 65 😆

That was my idea for that setup. Not pretty on paper so to speak, but did what they guy asked me to. Lower temp (it was a PH MBC job) heating was peeled from the TS on a lower set of tappings; the pipes running low behind the cardboard boxes. Telford made the cylinder entirely bespoke, and sprayed something like 100-120mm of foam (hence it doesn't have the usual posh dinner jacket), as it was a higher temp store in a PH, so wanted to reduce latent losses. High level temp probe pocket for the boiler to kick in ASAP, not the greatest, but with the volume of water in the TS to use for some elasticity it didn't go crazy on short-cycling, so afaic a plenty good enough design / arrangement.

Have you tried Pasquill? https://pasquill.co.uk/ They've been very helpful with a current project. One designer says the job (now borderline fully committed EnerPHit affair) is entirely unique in their companies history......but together we cracked it out; the job (with a few tweaks left to iron out) is good as gold now. When I rang to make some adaptations to the installed roof, so we could tweak the splays on the rooflights, the guy I spoke to said he's still in therapy

How soon (actually) before the OP has to worry about gas disappearing.........altogether? Prob not in my lifetime, and I'm 51. Or at least when it does I will be too old to give a shit.

Not at all.

@TerryE You reminded me above you have HA. So will be simple for you to dial in some extra on / off prompts? You can dial in remotely from Greece lol. 😜

The primary issue @TerryE is the short duty of the pump as running for only a couple/few months max means these stagnate and ‘stick’ quite annoyingly. I had 3x UPM3’s do exactly this on a very high spec (£3.8m) PH+ project and I couldn’t work it out. Had to drive to West Sussex 3 times to get them all spinning again (manual strip down and spin with a pliers). Major unwanted cost to me, and a big piss me off!! Eventually I realised these pumps do NOT like sitting still. Solution there was a Shelley which was set to spin the pump for 60 seconds at 03:00 on the first day of each month. Had to use one per, to keep the switch lives apart. No issues since. Just so bloody much to think about with PH; pros / cons / caveats / gotcha’s etc. #livingandlearning

Conversely, I think this is where it shines!! You have hands and fingers, and a molecule of air will get through gaps you can't even think there is a gap, ergo you can't get everywhere so I would reconsider. You'll notice this a bit lol. Just give it time, and I'll wear you down .