Last seen: Mar 14, 2025
@sobo attach some pictures if you can please? It's a new install under MCS, the white noise of the fan impeller plus a hum (not a rattle) of the compr...
Manufacturer's noise levels are usually quoted dB(A) SPL @ 1m free field. This means no reflective surfaces such as walls or floors. It's an unrealist...
If you want to include cooling, have you considered air to air heat pumps? Depends on the number of rooms you consider needing cooling, and the visual...
Modern monobloc heat pumps will not be harmed by power cuts. They don't have a refrigerant pump down system as the low charge quantity doesn't necessi...
@toodles thank you. Profile of your monthly generation matches mine. Last two months were a bit lower. Year to date solar production has been 2.9MWh. ...
Useful 5 year month-by-month comparative data there @editor. Thank you. August has been something of a solar wash-out for us in the North East. That s...
@hughf Chofu use an end suction centrifugal pump however, not an in-line pump. Chances are only the OEM pump will fit.
It really sucks Sonix, you've tried to do the right thing and been badly let down. I would be surprised if the plate heat exchanger is badly blocked, ...
Hi @Soniks, that's really bad news. Has the ASHP installation been installed by a Grant G1 approved installer? If it has, and is has been serviced and...
My Grant has an auxiliary output contact, which is used to control a separate 3kW immersion heater via a relay. It's a back-up heater, supplementary h...
'Elephant in the room' photo that first one showing monobloc location, it was never going to run efficiently. Sadly all too common. Sometimes it's ins...
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Latest Posts
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RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
@drew-pa that’s one of the cheaper ones so far.
By Mars , 11 hours ago
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Grant Aerona fine tuning advice needed
Looking to fine tune my settings. Currently running ab...
By Stopbar , 12 hours ago
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RE: Who's your electricity provider and what's your tariff?
@adrian it does look like they’ve updated their outgoin...
By Arundalep , 13 hours ago
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RE: DHW temp Samsung AE120RXYDEG 12kw ASHP with Gen 6 controller
I agree, it doesn't look like that was the culprit, but...
By Old_Scientist , 15 hours ago
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If you think your heat loss is between 4.5 and 8.5, the...
By JamesPa , 16 hours ago
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RE: Heat Pump Sizing & Installation Costs
1970s 4-bed detached house approx 168 sq.m internal are...
By JohnR , 21 hours ago
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RE: Is it KISS or constant – weather compensation vs. set flow temperature?
Away at present. Hence the delay. Will get back asap. ...
By cliffhanger , 1 day ago
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RE: Setback savings - fact or fiction?
The lower the DT the higher the flow rate. The lower ...
By BobTSkutter , 2 days ago
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RE: New kitchen with no walls – will fan coil units work?
Thanks. That explains the strangely-shaped 'feet' (loo...
By IanMK13 , 2 days ago
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RE: Heat Pump Books For Beginners – Bodge Buster & From Zero To Heat Pump Hero
I’ve updated Bodge Buster for 2025 to empower homeowner...
By Mars , 2 days ago
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RE: Aira Heat Pump: Stylish Scandinavian Heating
Aira, the Swedish, end to end manufacturer, system desi...
By KevinPotts , 2 days ago
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Unfortunately for your argument the best performing Dai...
By RobS , 2 days ago
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RE: Grant ASHP not reaching target temperatures
@mikefl Thank you. I’m not sure how to do these checks ...
By Hillswick , 3 days ago
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RE: Transforming a Derbyshire Property into an Energy-Efficient Haven
@carpenterstation That's helpful, thank you. The de...
By Morgan , 3 days ago
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RE: What is the best strategy for operating a very oversized heat pump?
@jamespa Homely does address many of these issues, but ...
By Arundalep , 3 days ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
There is absolutely nothing wrong with buffer tanks in ...
By JamesPa , 3 days ago
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RE: Replacing knackered oil boiler with ASHP - Perthshire
@abernyte thanks tbh I was more thinking about bolsteri...
By DowallyDrifter , 3 days ago
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RE: Battery storage to run Heat Pump.
@jeff The government are quite happy for the network ...
By Lucia , 4 days ago
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RE: Adjusting 6kW Daikin's Weather Compensation Curve
@jamespa I'm grateful for your advice.
By Ubert767 , 4 days ago
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RE: Say hello and introduce yourself
@carrownisky where are you based? Would you like me con...
By Mars , 4 days ago
Latest Topics
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Grant Aerona fine tuning advice needed
By Stopbar 12 hours ago
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Adjusting 6kW Daikin's Weather Compensation Curve
By Ubert767 4 days ago
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Should I make my radiators smaller?
By Scalextrix 5 days ago
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Daikin Heat Pump Cycling Frequency?
By Ubert767 6 days ago
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Battery storage to run Heat Pump.
By Broadsman 6 days ago