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AllyFish
@allyfish
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Noble Member
Joined: Oct 31, 2022
Last seen: Sep 13, 2025
Profile Activity
Topics: 23 / Replies: 473
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Reply
RE: Yearly maintenance

@hughf refrigerant charge quantity is critical. The best place to charge the unit is in the factory when built, where equipment is calibrated and cont...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Our Grant Aerona R32 13kW ASHP installation

I would use the ASHP for HW generation, as, even accounting for the fairly slow pre-heat time when the flow through the ASHP cools a bit before warmin...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Move along, nothing to see here....

"He's got heat meters fixed to the pipework. Room temperature monitors" @mjr they got thrown under the BUS. The current BUS scheme requires no energ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: This does not make sense!🤔

@andris EPCs can be a load of rubbish, my EPC when I was heating by oil rated my main heating and hot water was 'average' with a boiler that was 80% e...

3 years ago
Forum
Solar Photovoltaic (PV)
Reply
RE: Our Grant Aerona R32 13kW ASHP installation

@marvinator80 sounds all good. Pleased it has gone well. My wallet-busting 260kWh consumption last week was offset a little by a decent 60kWh solar PV...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: iBoost alternatives?

@derek-m good point. I had an iboost fitted 6 months ago. More recently had a 6.5kWh Growatt battery fitted to my Solar PV. I have found that charging...

3 years ago
Forum
Solar Photovoltaic (PV)
Reply
RE: Air Source Heat Pump problems

ASHP running costs can go up massively when the average daily temperature drops near freezing, defrost cycles start kicking in, and the house heating ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Move along, nothing to see here....
3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 17
Views: 3307
Reply
RE: Our Grant Aerona R32 13kW ASHP installation

@marvinator80 if your Grant installer has used external 3rd party time clock for daily HW cycle and external 3rd party thermostat for CH control, they...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Our Grant Aerona R32 13kW ASHP installation

@marvinator80 great all is installed and running. I have set the cylinder stat to 50degC, which requires the ASHP to provide water at 55degC. It usual...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Advice needed on hybrid system - ASHP not reaching flow temperature

@parmstar Great, les us know how you get on. Piping on your circuit is simple enough, and with a hybrid bivalent system I can see the LLH being of ben...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Advice needed: Hybrid System. ASHP not reaching flow temps

Is it the radiator side of the LLH that's not reaching temperature? Or does the heat pump monitoring show it's not achieving 50degC supply temperature...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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