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ASHP Upgrade - A SWOT analysis is requested

  • March 28, 2026
  • 2 replies
  • 31 views
C
Rank 2

I seem to have to wrestle with OVO every year these days before I get a satisfactory resolution of my rights as a loyal customer. Is now a good time (wrt disruption in global energy, climate change arguments, resale value of my 1983 house etc) to consider ditching my old gas boiler and upgrading to an ASHP with a brand new well insulated hot water cylinder/immersion heater to ‘top up’ bathing and washing up water etc plus maybe even new more suitable radiators? If so which are the best suppliers and installer of ASHPs. Daikin, Vaillant, Worcester - Bosch, Mitsubishi  et alia or even consider the Octopus system solution?

2 replies

BPLightlog
Super User
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  • BPLightlogSuper User
  • Super User
  • March 28, 2026

I think you will probably get 7 different answers from half a dozen people on the subject of Heat Pumps.

Most will only have personal experience of 1 unit if they have already taken the bait. 
We researched the subject for 2 years before taking the plunge and getting an ASHP installed last year. It has now been in service for just over a year and I’ve put together a few notes on our experience. 

 

Bring me Sunshine ~ E&E {Solar PV, Battery Storage, Hybrid EV, ASHP and Home Assistant automation}
    Peter E
    Super User
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    • Peter ESuper User
    • Super User
    • March 29, 2026

    In addition to ​@BPLightlog’s excellent and comprehensive blog (I have a heat pump) there is plenty of reference material on a range of heat pumps out there for you to look at once you get past the sales pitch. Try this for starters.

     

    https://www.theecoexperts.co.uk/heat-pumps/best-air-source-heat-pumps

     

    Peter 

     

    Reducing my yearly fossil fuel usage with an EV (-900 litres petrol), A2AHP (-8,500 kWh gas) and Timed Immersion heater (-1,500 kWh gas)
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