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Do I add Air Con or MVHR to existing A2W ASHP?

 
Air-to-Air Heat Pumps & Air Conditioning
Last Post by JamesPa 17 minutes ago
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Toodles
 Toodles
(@toodles)
Famed Member Contributor
Joined: 4 years ago
Posts: 2930
Topic starter 15/08/2026 5:35 pm   [#3137]

With summers getting hotter each year it seems, should I look at aircon or would MVHR be a better fit? Regards, Toodles.


Toodles, heats his home with cold draughts and cooks food with magnets.


   
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 Old_Scientist
(@old_scientist)
Honorable Member Member
Joined: 2 years ago
Posts: 524
15/08/2026 6:27 pm  

Would something like the extremely popular Midea portable split unit work for you:

https://www.midea.com/uk/air-treatment/porta-split-air-conditioner.portasplit

I know a few people who have purchased such devices this year and use them when temperatures get above 30C (or whatever your tolerance levels are). They are pretty effective at cooling down to a much more tolerable 23-24C.

If I were living in a very hot area of the country and starting again from scratch, I think I'd seriously be considering A2A instead of A2W for an all year round solution, assuming the property was suitable for A2A in terms of open plan layout where heat and cooling can circulate throughout the property.


Samsung 12kW gen6 ASHP with 50L volumiser and all new large radiators. 7.2kWp solar (south facing), Tesla PW3 (13.5kW)
Solar generation completely offsets ASHP usage annually. We no longer burn ~1600L of kerosene annually.


   
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JamesPa
 JamesPa
(@jamespa)
Illustrious Member Moderator
Joined: 3 years ago
Posts: 5267
15/08/2026 6:49 pm  

I'm asking the same question.  For me I want something that looks integrated not yet another box to store for most of the year. 

Im hoping that someone (Octopus?) launches a sensibly priced water to water wall mounted heat pump that can replace a couple of radiators using chilled water from my heat pump as the source for cooling or warm water for heating.  My single fancoil, operated above dewpoint, almost does the job but not quite because it isn't quite cold enough and doesn't dehumidify.  There is definitely a market here, it just needs the right product 

They do already exist, designed for offices/apartment blocks eg Panasonic aquarea loop, but at about 3k plus per pop. 


This post was modified 14 minutes ago 2 times by JamesPa

4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.


   
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