Last seen: Mar 20, 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: Plug and play solar. Thoughts?
@lucia, I think balcony solar panels are cool and for g...
By Mars , 22 minutes ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@gary I'll try and help, but at the moment I'm not rea...
By BobTSkutter , 4 hours ago
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RE: Additional Battery v Wind Turbine v Ripple
The biggest problem for the Coops is that Ripple funded...
By Abernyte , 4 hours ago
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RE: The EPC Dilemma: How Current Ratings Fail Heat Pumps
I've commented earlier in this thread, finding the same...
By Mike Patrick , 5 hours ago
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RE: To relocate or add extra PV panels..advice required
It looks normal up to 10:30!
By Judith , 5 hours ago
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RE: Ecodan Auto Adapt Questions
@boycey Think I'll wait to see what Misti come up with....
By Richard24738 , 5 hours ago
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RE: SolarPV tables / online calculator
This guy did a good analysis in summary go down a...
By Judith , 6 hours ago
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RE: Is it worth siting panels on an East facing roof?
@carpenterstation oops - yes I do! 7MWh
By downfield , 7 hours ago
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RE: ASHP Ecodan L9 error - No Heating but Hot Water
@dnagre delayed reply! It worked again for a bit but ha...
By Phoenix15 , 8 hours ago
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RE: Vaillant Arotherm Plus - new build no heating, no radiator
@john1756 did you ever get to the bottom of this?
By Mars , 11 hours ago
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RE: Aira Heat Pump: Stylish Scandinavian Heating
We tested the away mode for the first time as we were a...
By ChandyKris , 13 hours ago
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RE: Confused about Samsung Gen6 Hot Water Controller
Found a copy on this really good website 🤣 ...
By DerekDeLeon , 14 hours ago
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RE: Smart TRV experiences (ideally integrating with Midea heat pump)
@madbilly - I think you may risk over-complicating this...
By cathodeRay , 14 hours ago
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RE: Nibe F2040 ASHP PCB failure
@editor that is awesome! Your help is much appreciated.
By Delta , 24 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 , 1 day ago
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In our case the pipe run for the heat pump is short and...
By madbilly , 1 day ago
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@toodles no, unfortunately we don’t have access to the ...
By Simon and Zoe , 1 day ago
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@sandman1600 What I mean is, your UFH power is 79wm2...
By davidnolan22 , 1 day ago
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RE: Vaillant AroTherm Plus 7kW
Thank you James for such a complete write up. We also h...
By Judith , 1 day ago
Latest Topics
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To relocate or add extra PV panels..advice required
By WesleyP1874 11 hours ago
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Is it worth siting panels on an East facing roof?
By Carpenterstation 12 hours ago
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Plug and play solar. Thoughts?
By Lucia 1 day ago
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By JamesPa 1 day ago
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Vaillant water pressure gauge vs Analogue gauge
By jeegnesh 1 day ago
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Database of heat pump performance data?
By madbilly 2 days ago
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By madbilly 2 days ago
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Confused about Samsung Gen6 Hot Water Controller
By ntruby 3 days ago
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help with new bathroom and towel radiator
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