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AllyFish
@allyfish
Contributor
Noble Member
4198 kWhs
Joined: Oct 31, 2022
Last seen: Mar 14, 2025
Profile Activity
Topics: 22 / Replies: 456
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Reply
RE: ASHP hot water vs solar PV via diverter - tank average temperature

@iancalderbank Yup, tried that, but the tank maxes out at 55degC indicated on the cylinder. The immersion thermostat cuts in and it then cycles on tha...

2 years ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: ASHP hot water vs solar PV via diverter - tank average temperature

@derek-m thanks. The immersion heater thermostat on Grant cylinders is pre-set to 65degC and it cycles on/off on that. However, the separate cylinder ...

2 years ago
Forum
Domestic Hot Water & Cylinders
Topic
ASHP hot water vs solar PV via diverter - tank average temperature
2 years ago
Forum
Domestic Hot Water & Cylinders
Replies: 8
Views: 1045
Reply
RE: ASHP + Diesel heater?

Much of the struggle with ASHPs in winter is the defrost method. ASHP Evaporator coils have very narrow fin pitch, 1 to 1.5mm. That gives a large surf...

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

You may need a mains pressure regulator on the cold water inlet to your house. The pre-plumb cylinder inlet manifold has a 3bar pressure relief valve ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Adding Solar Gain influence to Weather Compensation Curve

This is interesting @sunandair. The basic weather compensation, relying solely on instantaneous outdoor dry bulb temperature, is crude. I've wondered ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Adding Solar Gain influence to Weather Compensation Curve

This is interesting @sunandair. The basic weather compensation, relying solely on instantaneous outdoor dry bulb temperature, is crude. I've wondered ...

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

@marvinator80 it does this with my 10kW. Algorithm within the ASHP as it monitors air and return water temperature. It’ll turn the ASHP off for a leng...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: DIY Heat Pumps.

I think it's a monobloc unit, R410A. See here:which is probably why they are getting flogged off cheap by the likes of Appliances Direct, to unsuspect...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: DIY Heat Pumps.

With a DIY install you've got the option for heating and also cooling via fan coil units, which under the MCS approach isn't an option. However, these...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Long burning briquettes

Yeah, exactly my concern. What are the briquettes made of (waste product or felled timber) and how much CO2 and energy goes into their process that pr...

2 years ago
Forum
Wood Burners, Biomass, Small Scale, Biofuels & Other Heating Alternatives
Reply
RE: Long burning briquettes

I've looked at this company several times but never taken the plunge. They get good reviews. My only concern is the Lekto supply chain is opaque, they...

2 years ago
Forum
Wood Burners, Biomass, Small Scale, Biofuels & Other Heating Alternatives
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