Last seen: Sep 10, 2025
The carbon emissions factor is from the government's Standard Assessment Procedure for Energy Rating of Dwellings (SAP 10.2) I don't profess to be a...
@prjohn, energy costs are worrying – I'll read this article tonight when I get a chance. Everything these days is politicised.
The bivalent controls on our heat pump don't allow us to run the boiler on weather compensation which is a pity. When we get off the HVO trial, we'll ...
@kev-m, that's very satisfactory. That would have been around £76 this time last year with Symbio. But still very good.
@kev-m, that’s scary. I’m genuinely concerned about the rising cost of electricity. Running a heat pump is electricity intensive and it’s not the same...
@kev-m, what was your heat pump usage in December?
@julianc, thank you for your honest comments. As you know we are extremely pro heat pumps and renewables, but consumers need more options. Many of you...
We’ve been running our air source heat pump alongside our boiler that’s been using HVO (hydrotreated vegetable oil) since December and we’ve crunched ...
@julianc, it's very pricey – we're in the process of doing the maths and trying to see how things stack up in terms of costs and CO2 emissions.
@mikefitz, do you have a link to where you buy these from?
@peterr, I'm not a professional installer, but where the copper meets the pipe should, in my opinion be insulated. Wherever our copper pipework (flow ...
Latest Posts
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RE: COP is not the only measure of efficiency
I am a little sceptical of this, not least because, in ...
By jamespetts , 12 minutes ago
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RE: Renewables & Heat Pumps in the News
To unpack this a little.... 1) how many of us in this...
By Lucia , 31 minutes ago
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RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
@ashp-bobba Well done for stepping in where most would ...
By JamesPa , 2 hours ago
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RE: Who’s Caved and Switched the Heating On Already?
I have automated this decision. I have a heat pump with...
By jamespetts , 10 hours ago
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RE: Vaillant aroTherm Plus 10kW thoughts?
@realevil the fans and fan speed / coil size (height, w...
By ASHP-BOBBA , 12 hours ago
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RE: Mitsubishi Ecodan 11kw Defrosting Issue.
@morgan this can just be done by your sepecilist when t...
By ASHP-BOBBA , 12 hours ago
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RE: Buffers, hot water and cooling
I agree it seems like a lot of work particularly as its...
By JamesPa , 13 hours ago
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RE: Anyone still weathering it out with Agile?
@toodles I guess it all comes down to import averages. ...
By Tim441 , 16 hours ago
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RE: 300 Liter Tank - Do I have to heat it all?
The size of DHW tank affects the anti-legionella cycle....
By Transparent , 17 hours ago
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RE: Heat Pump SCOPs – The Truth Might Not Be What You Think
@scalextrix Name plate capacity
By HCas , 20 hours ago
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RE: Solar Thermal DHW and ASHP
I was originally contemplating a solar thermal installa...
By jamespetts , 21 hours ago
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RE: Solar Power Output – Let’s Compare Generation Figures
My system installed in July 2024 has produced 6.4mWh in...
By jamespetts , 21 hours ago
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RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House
@judith thanks for your suggestions. Starting from col...
By GrahamF , 2 days ago
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RE: Inventor (Midea) Heat Pump short cycling advice
I switched to "fan coil mode" to be able to set water t...
By immunity , 2 days ago
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RE: DESNZ doing a survey which asks the right questions!
Without a survey their only source of data is probably ...
By JamesPa , 2 days ago
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RE: Can you help with our research: solar panels, EV chargers, home batteries, heat pumps?
Just done your survey!
By Judith , 3 days ago
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RE: Failing heat pump system - seeking thoughts on a rebuild
@cleardene-ashp just thinking about your issues here. Y...
By Judith , 3 days ago
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RE: Midea ASHP – how to set weather compensation
@cathoderay OK let's wait and see, it sounds an interes...
By Tasos , 3 days ago
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RE: What is the Heat Geek Guarantee?
@judith, I’m with you on Heat Geek, but there really do...
By Mars , 3 days ago
