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Last seen: Aug 1, 2026
Are your neighbours units specifically designed for coastal areas and are your neighbours regularly rinsing off the unit and its heat exchanger? In ...
Having just ripped out storage heaters and fitted radiators ready for installation of a heatpump, I think your approach would be unusual/madness unles...
I've had a genuine velux roof window crack after fitting solar control film on the inside. That was several years ago and the first hot sunny...
@editor I watched some of the videos on Grahams heatpump channel and they look to be well put together. Importantly the controller seems to be a lot m...
@will-h posting above is the reason for me finally saying hello, as the HP I'm swaying towards is the Haier 6kW R290 single phase air source heat pump...
I've been following the forum, watching the podcasts for a while as our heating definitely needed an overhaul. The house is a 1990 conversion of an ...
@editor "The interesting bit is that many modern inverter heat pumps already sort of do this internally. They don’t necessarily just whack the flow te...
I’m not a huge fan of AI, but comparing one scenario to another and working out the maths definitely has its uses. I asked: “Heating a 200L DHW cy...
It was just a thought, because I'm looking to get a Grant r290 6.5Kw and the tech data sheet shows A7 W35 7.62Kw COP 4.95 A7 W55 7.23Kw COP 3.00 ...
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Latest Posts
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RE: Adding additional Solar Panels to a DC coupled battery system
@old_scientist I got them from Tradesparky. In the end ...
By bontwoody , 1 hour ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
@kilgorexv definitely a larger inverter will help and m...
By AndrewJ , 18 hours ago
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RE: Adventures in heat loss calculations
@rob-of-york — thanks for posting this, all very useful...
By cathodeRay , 21 hours ago
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RE: Surface mount or bury primaries for heat pump installation?
The installation is almost done! I've written up two ...
By tomasmcguinness , 1 day ago
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RE: Glass lined Cylinder for private water supply
This has turned into a fascinating little rabbit hole. ...
By Mars , 2 days ago
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RE: Switch suitable to change between two inverter CT's
Last winter my battery ,32KWh, could run the house com...
By Jancold , 2 days ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Agree with Major. And even if I was very happy with ...
By Batpred , 2 days ago
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RE: Is the "divide by 2900" rule still valid?
There is another estimator that you could use, a formul...
By Rob of York , 2 days ago
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RE: To re-pipe or not to re-pipe? Moving from oil boiler to air source heat pump.
@penval, really useful update. After all the discussion...
By Mars , 4 days ago
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RE: Who's your electricity provider and what's your tariff?
@papahuhu I prefer to look at it simplistically. We d...
By Old_Scientist , 5 days ago
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RE: Questions about A2A for heating as well as cooling
@rob-of-york I would concur with the underfloor insulat...
By Toodles , 5 days ago
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RE: New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
Nothing attached! I have rads but UFH makes the case ...
By JamesPa , 5 days ago
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RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 5 days ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Thank you, I’m thinking along these same l...
By Toodles , 6 days ago



