Last seen: Mar 19, 2025
The HIVE main thermostat overrides steady ASHP control if it's switching on and off. You can tell if it is from the HIVE app temperature graph. The HI...
Welcome! I have a similar sized house, EPC C, 1992, 4 bed detached. Formerly CH and HW from Kerosene, which was actually cheaper per kWh than mains ga...
Condensate drains could have been routed through the concrete pad to drain into the hardcore substrate underneath. A 50mm core cutter would have made ...
@editor I got the same, but for my mother's retirement flat, which is an account in my name. She only has electricity available to her. Her daytime ta...
The Grant/Chofu ASHP controller does not show if Weather Compensation is enabled or not from the 'home screen' display, you need to enter installer le...
I've tried running 24/7 with 18degC general space temperature. Lounge is boosted with a log burner the trickles heat upstairs too. It has been very co...
@bn06amp I'm afraid I can't spot it either there! It depends on where it is on the circuit, you don't need a bypass on the primary (ASHP) side with a ...
@bn06amp that's all encouraging. The Grant pre-plumbed cylinder has an auto bypass, and Grant show it on their recommended installs. They are designed...
Hi @parmstar Have you any final % payment agreed upon receipt of installation documentation? What has the installer said regarding timely supply of MC...
@bn06amp my secondary pump is the Grundfos UPS3:130 which gives me 1.6m3/h (26l/min) at about 5m head set to maximum speed/curve. The primary pump in ...
For a typical 5degK delta T between flow and return, to provide 11kW you ideally need 11/(5x4.2) = 0.524l/s or 31l/min. Suggest the flow needs to incr...
@bn06amp ah, having the secondary hot water pump on a timer is a good idea, to only use when needed. You're right about the ASHP and hot water demand,...
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Latest Posts
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RE: Confused about Samsung Gen6 Hot Water Controller
Thank you Derek and Gary: this has been so interesting ...
By ntruby , 1 hour ago
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RE: Nibe F2040 ASHP PCB failure
@delta I’ve raised this with NIBE today. Their team is ...
By Mars , 2 hours ago
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RE: Are MCS are finally improving (some of) their guidelines?
Encouragement of installers to take account of the emit...
By JohnR , 2 hours ago
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RE: Smart TRV experiences (ideally integrating with Midea heat pump)
Yes, I'd read that and already knew that LSVs exhibit a...
By madbilly , 2 hours ago
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In our case the pipe run for the heat pump is short and...
By madbilly , 2 hours ago
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Plug and play solar. Thoughts?
What do you think of these plug-and-play Balcony Solar...
By Lucia , 5 hours ago
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@toodles no, unfortunately we don’t have access to the ...
By Simon and Zoe , 5 hours ago
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RE: The EPC Dilemma: How Current Ratings Fail Heat Pumps
Hi, im not an expert on EPCs but today got a D for my 1...
By rodwebster , 6 hours ago
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@sandman1600 What I mean is, your UFH power is 79wm2...
By davidnolan22 , 6 hours ago
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RE: Vaillant AroTherm Plus 7kW
Thank you James for such a complete write up. We also h...
By Judith , 7 hours ago
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RE: Ecodan Auto Adapt Questions
It wasnt me that mentioned this, was someone else, I wa...
By JamesPa , 7 hours ago
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RE: Renewables & Heat Pumps in the News
In a move that potentially promises to benefit homeowne...
By Mars , 7 hours ago
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RE: Vaillant water pressure gauge vs Analogue gauge
I have the same, so equally interested in the answer. ...
By JamesPa , 7 hours ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
Possibly 40c vs 30c flow has something to do with it…. ...
By SUNandAIR , 9 hours ago
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RE: Thinking of ripping our my IVT Greenline HT Plus C model and replacing with a gas boiler.
Somebody has to pay for their ignorance! In fairness ...
By JamesPa , 12 hours ago
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Thats simply not true (to any material extent), which i...
By JamesPa , 1 day ago
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Database of heat pump performance data?
Hi all, I really like Heatpunk, especially the way th...
By madbilly , 1 day ago
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RE: Air source heat pump roll call
Good idea 🙂 Manufacturer: MideaModel:10kW R32 Monob...
By madbilly , 1 day ago
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RE: What is the best approach for primaries in heat pump installations?
Don't forget there is no such thing as zero loss insula...
By Judith , 1 day ago
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RE: Battery storage to run Heat Pump.
@transparent Flexibility Services are different to w...
By Lucia , 1 day ago
Latest Topics
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Plug and play solar. Thoughts?
By Lucia 5 hours ago
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By JamesPa 8 hours ago
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Vaillant water pressure gauge vs Analogue gauge
By jeegnesh 9 hours ago
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Database of heat pump performance data?
By madbilly 1 day ago
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By madbilly 1 day ago
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Confused about Samsung Gen6 Hot Water Controller
By ntruby 2 days ago
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help with new bathroom and towel radiator
By AdamK 2 days ago
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Grant Aerona fine tuning advice needed
By Stopbar 3 days ago