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Last seen: Jan 8, 2025
Hello @lenny and welcome. It's hard to tell when it's late May but how is it so far? Were you given a walk through, manuals, instructions and so on?
I agree with you that normal cycling in itself isn't a big problem. IMO the bigger problem with an oversized ASHP (apart from them costing more) is t...
A typical oversized gas boiler with scalding hot radiators allows the temperature of the house (or parts of it) to be set back so that it is colder fo...
It was storage heaters and I did have annual consumption. But it was hard to compare the energy used with a modern, controllable system. The heat ra...
It was storage heaters and I did have annual consumption. But it was hard to compare the energy used with a modern, controllable system. The heat ra...
Don't forget to add a bit - at least 15% - for defrosts. And hot water. And make sure the manufacturer's 'size' is deliverable when it's actually col...
I agree. IMO the issue with older housing isn't the wall insulation; loft lagging, windows and doors should fix most and terraced houses are very wel...
@sunandair, @elab hasn't been seen on the forum since 1st May so I don't think s/he is worthy of any more attention!
Don't forget that an ASHP will spend 15-20% of its time defrosting when it's cold outside. And you'll still want hot water. 11kW sounds about right....
At least ASHPs keep running as long as you want them to. Imagine having an ASHP that stopped after using 30kWh and required you to faff around with va...
An adjustment in the relative prices of electricity and gas would be the most effective way to encourage heat pumps. 2.5 times would help but if elec...
Because it's being funded by taxpayers. If I'm going to contribute, through my taxes, to delivering a low(er) carbon economy, I want the best bang fo...
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Degrees of Separation
Latest Posts
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Hi, sorry that I have been absent for a while. I'd like...
By baroquebank , 38 minutes 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 , 5 hours 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 , 1 day ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
D'oh - of course. I shouldn't post before my brain is f...
By Old_Scientist , 1 day 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 , 1 day 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 , 1 day ago
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RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 1 day 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 , 2 days ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 2 days ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
By Mars , 3 days ago
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RE: Plug and play solar. Thoughts?
My thought is simple. Bring it on and bring on plug in...
By JamesPa , 3 days ago
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RE: Heat Geek mini store vs pump size
Yes I agree, that’s why Heat Geek have most likely sele...
By Tomtheheatingengineer , 4 days ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 4 days ago
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RE: Is the "divide by 2900" rule still valid?
Really flow rate is a pipework limitation not a water p...
By JamesPa , 5 days ago
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