Starting out on my heat pump journey

[Ronski]

I contacted another local installer, they don't charge for heat loss surveys, and are coming out Saturday.

Another 21kWh from the PV today.

[Ronski]

Solaris Energy quotes came in last week.

Vaillant aroTherm 7kW with uniTower: Materials £9400, labour £6300, less BUS Grant = total of £8,200
Kronoterm 9kW system: Materials £11,600, labour £6300, less BUS Grant = total of £10,400

I would also responsible for installing the base for the heat pump

Somehow I don't think they will be installing my heat pump.

I had a Quote from SGS Energy prior to their visit Saturday, and that was £5100 after BUS grant, he said on Saturday that the uniTower was about a £1000 more, should hopefully get that quote through today.

I also did an online quote for Octopus out of curiosity, which was £6,918.18 after the grant, ouch!

[Joeboy]

Solaris Energy quotes came in last week.

Vaillant aroTherm 7kW with uniTower: Materials £9400, labour £6300, less BUS Grant = total of £8,200
Kronoterm 9kW system: Materials £11,600, labour £6300, less BUS Grant = total of £10,400

I would also responsible for installing the base for the heat pump

Somehow I don't think they will be installing my heat pump.

I had a Quote from SGS Energy prior to their visit Saturday, and that was £5100 after BUS grant, he said on Saturday that the uniTower was about a £1000 more, should hopefully get that quote through today.

I also did an online quote for Octopus out of curiosity, which was £6,918.18 after the grant, ouch!

How much are you hoping to do it for Ron? I was £11,500 after the grant for comparison. For that I went pretty.much top tier and tbh there should probably have been.another £1,500 on for increased bore runs and pipe insulation. So call it £13,000 after the grant.

[Ronski]

How much are you hoping to do it for Ron? I was £11,500 after the grant for comparison. For that I went pretty.much top tier and tbh there should probably have been.another £1,500 on for increased bore runs and pipe insulation. So call it £13,000 after the grant.

From what I remember you had a lot of radiators replaced, and also a lot of plumbing altered, I don't need any rads changing and due to the location of the heat pump and the hot water tank there is not a lot to fitted/changed.

You can buy the Aerotherm 7kW and uniTower from City Plumbing for £5500+vat, no doubt an installer will be getting a discount, but let's go with the £5500, where does the other £3900 go???? Then labour at £6300, that's a lot of man hours

Just had the quote from SGS, exactly the same system, cost to me just under £5k, that's £3200 cheaper and kind of proves my point.

Both installers have good reviews, both are approved Valiant installers.

I'm OK with £5k.

[Joeboy]

How much are you hoping to do it for Ron? I was £11,500 after the grant for comparison. For that I went pretty.much top tier and tbh there should probably have been.another £1,500 on for increased bore runs and pipe insulation. So call it £13,000 after the grant.

From what I remember you had a lot of radiators replaced, and also a lot of plumbing altered, I don't need any rads changing and due to the location of the heat pump and the hot water tank there is not a lot to fitted/changed.

You can buy the Aerotherm 7kW and uniTower from City Plumbing for £5500+vat, no doubt an installer will be getting a discount, but let's go with the £5500, where does the other £3900 go???? Then labour at £6300, that's a lot of man hours

Just had the quote from SGS, exactly the same system, cost to me just under £5k, that's £3200 cheaper and kind of proves my point.

Both installers have good reviews, both are approved Valiant installers.

I'm OK with £5k.

Fair enough, the detail matters which won't impact the cost by much. Swept 90 elbows rather than compact. Minimise flow restriction and turbulence. I don't know about proving points but I'd defo try and drill down into detail.to see what's what and where the extra 3 grand was meant to go. You'll have the system for a long time. Make sure you get as much right as you can within budget.

Edit- My understanding of a successful HP installation is maximise your insulation. Slightly underspec the HP to the heatloss calc outcome and maximise bore dia where possible within budget and also minimise pipe & bend restriction where possible and again within budget. If you can get it running low & slow that's where the higher efficiency kicks in. 24/7 with no setback.

0.3 heat curve and 18degs demand in home apart from bedroom which is throttled by trv to 16.5. We regularly hit a cop of 6 if weather is even close to decent. Don't know what the top end will be but expect it to be in 7's. It's easy to focus on immediate price as that stings like hell but I'd urge you to have half an eye on the 25yr plan in your decisions. I don't mean just chuck money at it but ensure they put in what will give you the best longterm outcome. I really look forward to reading about how it all goes. Genuinely exciting times.

P.S, I don't mean to sound preachy but the bit above is what I've gathered post install by living with the system and seeing and understanding a few "what if's". All the best.

[Yuff]

Is low and slow the right goal to be aiming for?
If you have solar and batteries and export surely that balance needs to be factored in.
I could keep our system on 24/7 and it would probably be pretty efficient, however I’d lose 30-40% of our export and it would work out more expensive overall……just a thought

[Andy]

Is low and slow the right goal to be aiming for?
If you have solar and batteries and export surely that balance needs to be factored in.
I could keep our system on 24/7 and it would probably be pretty efficient, however I’d lose 30-40% of our export and it would work out more expensive overall……just a thought

Just program your system to run the house on the battery and export the solar

[Ken]

Is low and slow the right goal to be aiming for?
If you have solar and batteries and export surely that balance needs to be factored in.
I could keep our system on 24/7 and it would probably be pretty efficient, however I’d lose 30-40% of our export and it would work out more expensive overall……just a thought

Will not be exporting anything during the winter months..... just a thought.

[Andy]

Is low and slow the right goal to be aiming for?
If you have solar and batteries and export surely that balance needs to be factored in.
I could keep our system on 24/7 and it would probably be pretty efficient, however I’d lose 30-40% of our export and it would work out more expensive overall……just a thought

Will not be exporting anything during the winter months..... just a thought.

And you want the heating on during the day if at home. If you start stop the recovery time is slow or the COP gets hammered driving the temperature up high.

[Joeboy]

I guess it all depends on your primary needs. We did have the setback temp higher during cheap rate overnight to give the batteries an easier start in the morning. This was in minus 11 when it was needed. That's stopped now. Each to their own, I won't know the finances until year end but it's looking good just on environmental comfort and less power bought.