Octopus ASHP Quotation Received

[smegal]

I asked a neighbour to also request a quotation out of curiosity.

He has ab identical house as mine. £48 cheaper which is interesting, but suggests that's the price.

[smegal]

Right, Here are the details:

This is based on a 1,468 sqft 3 story semi detached 2016 new build. 22mm plastic spines with 10mm plastic to rads.

Here is the heat pump and hot water cylinder details.



Expected Annual energy consumption:



sCOP vs flow temperature (I'm loathe to aim for 50C)



Rad Schedule:



And the final price:




My concern is that Heatpunk got a ~10% higher than heat loss than Octopus and that a 4 kW heat pump may be on the lean side.

I also don't like that there isn't currently a heat pump AND EV tatiff, so tehre'll be a compromise. Although, the Tomato Energy tariff (https://camelot-forum.co.uk/phpBB3/view ... 842#p50842) may work reasonably well for us.

[Moxi]

I wonder why the install is higher than the BUS ? Are you having a cylinder fitted or is it existing ?

I should think that you will find the 4kW unit more than sufficient, don't forget with a smart meter and ToU tariff you can also engage the immersion here and there to get a boost for the heating - though I genuinely doubt it will be needed.

Moxi

[Richard77]

Seems like a no brainer smegal for the price, if it's good enough. Are you going to get it?

I got told by octopus that they only fit 6-8kw heat pumps and the house was too big.

Initial quote was about £3800 after grant.

[Stig]

Do you know your actual energy consumption with the existing system as a cross-check for those estimates?

[smegal]

Do you know your actual energy consumption with the existing system as a cross-check for those estimates?

I will try to it out. Although we're Terrible at submitting gas readings, so will have to do it as an average.

[smegal]

Seems like a no brainer smegal for the price, if it's good enough. Are you going to get it?

I got told by octopus that they only fit 6-8kw heat pumps and the house was too big.

Initial quote was about £3800 after grant.

I'm probably going to get it. Just got one more point to check. I'm now confident that the HP is sized correctly, but there are concerns that a lack of head room can cause issues during defrost cycles.

[smegal]

I wonder why the install is higher than the BUS ? Are you having a cylinder fitted or is it existing ?

I should think that you will find the 4kW unit more than sufficient, don't forget with a smart meter and ToU tariff you can also engage the immersion here and there to get a boost for the heating - though I genuinely doubt it will be needed.

Moxi

That is a new cylinder, and a few new rads.

[smegal]

I've signed on the dotted line. Let's see when they want to install.

[Joeboy]

I've signed on the dotted line. Let's see when they want to install.

Congratulations! Looking forward to seeing it.

An excellent price too.