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Using air conditioners as air source heat pumps
Comments
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Each of ours were supplied & installed for about £1,500 each.If you are over 60 and they are supplied & installed by the same company VAT is 5% instead of 20%.Be wary of the ones sold on ebay being the cheap noisy type with low COP's compared with good quality makes installed by a reputable supplier.Also, if you do a DIY install you need to get an f-gas registered engineer to complete the Building Regs requirements.I would estimate a single outside unit supplying 2 internal units would probably cost about £2k - £2.5k (including installation & 5% VAT) depending on the routing of the piping, etc.2
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2 years ago mine cost me £1100 and £900 installed.Northern Lincolnshire. 7.8 kWp system, (4.2 kWwest facing panels , 3.6 kWeast facing), Solis inverters installed 2018, 5kW SSE facing system (shaded in afternoon) added in 2025 with Tesla PW3 battery, Mitsubishi SRK35ZS-S and SRK20ZS-S Wall Mounted A2A Heat Pumps, ex Nissan Leaf owner.1
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Useful ink for anyone considering ASHPs
https://forums.moneysavingexpert.com/discussion/1464827/updated-air-source-heat-pumps-air-con-full-info-guide-is-it-cheaper-to-run-than-mains-gas
Northern Lincolnshire. 7.8 kWp system, (4.2 kWwest facing panels , 3.6 kWeast facing), Solis inverters installed 2018, 5kW SSE facing system (shaded in afternoon) added in 2025 with Tesla PW3 battery, Mitsubishi SRK35ZS-S and SRK20ZS-S Wall Mounted A2A Heat Pumps, ex Nissan Leaf owner.0 -
Thank you .. finally had a quote"So, For the LG standard plus option including all the supply and installation that’s with a 3.5kw unit in the living room and a 2.5kw unit in the bedroom running from a single outdoor unit comes to £2,579.79 + VAT."They are saying 5% VAT discontinued in 2019... although still on Gov website as applicable.... More chatting they are insistent that 5% VAT does not apply, this is who quoted mehttps://thawltd.co.uk/
3.995kWP SSW facing. Commissioned 7 July 2011. 24 degree pitch (£3.36 /W).
17 Yingli 235 panels
Sunnyboy 4000TL inverter
Sunny Webox
Solar Immersion installed May 2013, after two Solar Immersion lasting just over the guarantee period replaced with Solic 200... no problems since.
13 Feb 2020 LUX AC 3600 and 3 X Pylon Tech 3.5 kW batteries added...
May 2021 2x LG AC units installed
20 January 2024 Daikin ASHP installed4 -
mickyduck55 said:Thank you .. finally had a quote"So, For the LG standard plus option including all the supply and installation that’s with a 3.5kw unit in the living room and a 2.5kw unit in the bedroom running from a single outdoor unit comes to £2,579.79 + VAT."They are saying 5% VAT discontinued in 2019... although still on Gov website as applicable.... More chatting they are insistent that 5% VAT does not apply, this is who quoted mehttps://thawltd.co.uk/Well, our last one was installed at the end of last year (2020) and the 5% VAT did apply as I am over 60 and we used the same company for supply & install. It was a company that also trains engineers for f-gas registration; so they should know the rules!Another company we had a quote from said if we bought the unit ourselves and got them to install, then VAT @ 20% would apply to both the purchase & installation.1
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ASavvyBuyer said:mickyduck55 said:Thank you .. finally had a quote"So, For the LG standard plus option including all the supply and installation that’s with a 3.5kw unit in the living room and a 2.5kw unit in the bedroom running from a single outdoor unit comes to £2,579.79 + VAT."They are saying 5% VAT discontinued in 2019... although still on Gov website as applicable.... More chatting they are insistent that 5% VAT does not apply, this is who quoted mehttps://thawltd.co.uk/Well, our last one was installed at the end of last year (2020) and the 5% VAT did apply as I am over 60 and we used the same company for supply & install. It was a company that also trains engineers for f-gas registration; so they should know the rules!Another company we had a quote from said if we bought the unit ourselves and got them to install, then VAT @ 20% would apply to both the purchase & installation.
Was it a local company? If not I will contact them..
3.995kWP SSW facing. Commissioned 7 July 2011. 24 degree pitch (£3.36 /W).
17 Yingli 235 panels
Sunnyboy 4000TL inverter
Sunny Webox
Solar Immersion installed May 2013, after two Solar Immersion lasting just over the guarantee period replaced with Solic 200... no problems since.
13 Feb 2020 LUX AC 3600 and 3 X Pylon Tech 3.5 kW batteries added...
May 2021 2x LG AC units installed
20 January 2024 Daikin ASHP installed0 -
mickyduck55 said:ASavvyBuyer said:mickyduck55 said:Thank you .. finally had a quote"So, For the LG standard plus option including all the supply and installation that’s with a 3.5kw unit in the living room and a 2.5kw unit in the bedroom running from a single outdoor unit comes to £2,579.79 + VAT."They are saying 5% VAT discontinued in 2019... although still on Gov website as applicable.... More chatting they are insistent that 5% VAT does not apply, this is who quoted mehttps://thawltd.co.uk/Well, our last one was installed at the end of last year (2020) and the 5% VAT did apply as I am over 60 and we used the same company for supply & install. It was a company that also trains engineers for f-gas registration; so they should know the rules!Another company we had a quote from said if we bought the unit ourselves and got them to install, then VAT @ 20% would apply to both the purchase & installation.
Was it a local company? If not I will contact them..Yes, local to us in South Wales. However, I understand they do installations outside South Wales.I can PM you their details if you want.1 -
ASavvyBuyer said:mickyduck55 said:ASavvyBuyer said:mickyduck55 said:Thank you .. finally had a quote"So, For the LG standard plus option including all the supply and installation that’s with a 3.5kw unit in the living room and a 2.5kw unit in the bedroom running from a single outdoor unit comes to £2,579.79 + VAT."They are saying 5% VAT discontinued in 2019... although still on Gov website as applicable.... More chatting they are insistent that 5% VAT does not apply, this is who quoted mehttps://thawltd.co.uk/Well, our last one was installed at the end of last year (2020) and the 5% VAT did apply as I am over 60 and we used the same company for supply & install. It was a company that also trains engineers for f-gas registration; so they should know the rules!Another company we had a quote from said if we bought the unit ourselves and got them to install, then VAT @ 20% would apply to both the purchase & installation.
Was it a local company? If not I will contact them..Yes, local to us in South Wales. However, I understand they do installations outside South Wales.I can PM you their details if you want.
Yes please
3.995kWP SSW facing. Commissioned 7 July 2011. 24 degree pitch (£3.36 /W).
17 Yingli 235 panels
Sunnyboy 4000TL inverter
Sunny Webox
Solar Immersion installed May 2013, after two Solar Immersion lasting just over the guarantee period replaced with Solic 200... no problems since.
13 Feb 2020 LUX AC 3600 and 3 X Pylon Tech 3.5 kW batteries added...
May 2021 2x LG AC units installed
20 January 2024 Daikin ASHP installed1 -
OK, PM sent.mickyduck55 said:ASavvyBuyer said:mickyduck55 said:ASavvyBuyer said:mickyduck55 said:Thank you .. finally had a quote"So, For the LG standard plus option including all the supply and installation that’s with a 3.5kw unit in the living room and a 2.5kw unit in the bedroom running from a single outdoor unit comes to £2,579.79 + VAT."They are saying 5% VAT discontinued in 2019... although still on Gov website as applicable.... More chatting they are insistent that 5% VAT does not apply, this is who quoted mehttps://thawltd.co.uk/Well, our last one was installed at the end of last year (2020) and the 5% VAT did apply as I am over 60 and we used the same company for supply & install. It was a company that also trains engineers for f-gas registration; so they should know the rules!Another company we had a quote from said if we bought the unit ourselves and got them to install, then VAT @ 20% would apply to both the purchase & installation.
Was it a local company? If not I will contact them..Yes, local to us in South Wales. However, I understand they do installations outside South Wales.I can PM you their details if you want.
Yes please
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Are there pluses and minuses to using a split system rather than two single units?I think....0
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