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Last seen: Sep 22, 2026
All very fine until the Gulf Stream stops working, which is predicted to happen due to the melting of antarctic glaciers.
Even more so given that, in 20years time, we will all have at least one 60kWh battery sitting on the drive. Seriously electric cars should make an e...
Completely agree good installation is mandatory. I think its highly likely that ToU tarrifs will persist, they have, after all, been around for at le...
There is a recommended flow rate range for each model (its quite a large range), and I think you might be able to display measured flow rate. if you ...
@davidalgarve If the heat pump is capable of modulating the pump speed (via a pwm cable) I would let it do so. Otherwise you will have to look in th...
Certainly I would say. And the guy at the local garage who refills the aircon in your car is of course scrupulous in ensuring none escapes, ditto th...
It is of course a risk that ASHPs end up in landfill, just like refrigerators and cars which also have fluorinated gases in them. But the amount of g...
Agree, although in the UK, at least according to my understanding, this would have to be demountable via double check valves etc (assuming its effecti...
The principal reason that LLH reduces efficiency is if there is a temperature drop flow to flow across it (which there almost inevitably is unless it ...
The charge is specified, typically 1-3kW. Your view has always been my view, nice if you can get low GWP but, by comparison with the savings due to a...
The only practical downside (from a consumer point of view) of R290 appears to be its flammability and hence location constraints. Meanwhile we happi...
@hughf Is the second assertion (R290 = Less efficient) actually true? Here are extracts from the spec sheets for Mitsubishi R32 and Vaillant R290,...
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Degrees of Separation
Latest Posts
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RE: Cooling using an air to water heat pump
I've been doing it, 16-17°C water in the slabs. The e...
By bobflux , 22 minutes ago
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RE: Passiv Smart Thermostat - Help & Forum Support
Is there any expected time frame for an update to be ab...
By Singlespeed , 37 minutes ago
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RE: Why are ASHP installs so expensive?
Posted by: @springswood I confess to becoming a litt...
By Rob of York , 2 hours ago
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@mrkfm There are some bad installers out there, both ...
By JamesPa , 2 hours ago
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Analysis of the economics of switching to an A2W ASHP compared to other heat sources
This post aims to analyse the economics of installing, ...
By Rob of York , 6 hours ago
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RE: Cooling with air to water heat pumps
@editor does that mean you have to have two separate ex...
By mrkfm , 21 hours ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
Posted by: @ian-s Could always use the money saved o...
By Rob of York , 1 day ago
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Depends on what controls the pump! Thats the whole poi...
By JamesPa , 1 day ago
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The positive reviews keep coming in for Britain's Heat ...
By Mars , 2 days ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
I have one of these fitted which also allows you to reg...
By Old_Scientist , 2 days ago
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RE: Recommendations in Ely (Cambs) area for Full setup checks on Nibe HP setup for House.
If they can't don't give up. Heat pumps are, in reali...
By JamesPa , 3 days ago
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RE: Missing flow temperature in Heat Geek proposal
Yes that's what would happen by turning down the lsv to...
By JamesPa , 3 days ago
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RE: Grant R290 DHW Cycle Interuption
It looks like some sort of short pre-run. The question...
By JamesPa , 3 days ago
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RE: Cascade System or larger single unit
@renewables345 I would say if it a new build it’s no mo...
By Aventus Eco , 3 days ago
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