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AllyFish
@allyfish
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Noble Member
Joined: Oct 31, 2022
Last seen: Oct 31, 2025
Profile Activity
Topics: 23 / Replies: 484
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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...

3 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...

3 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...

3 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...

3 years ago
Forum
Wood Burners, Biomass, Small Scale, Biofuels & Other Heating Alternatives
Reply
RE: Heat pump research study: UK homeowners that decided not to install a heat pump after considering it

@editor is it s survey intended to, ultimately, improve the take up of ASHP and renewable heating? Or a survey by an organisation with a vested intere...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Battery Charging Anomalies

In my day job I'm designing systems that support fire-rated battery rooms with 200kVA Siemens Bluevault Li-Ion 230V UPS batteries. They require a room...

3 years ago
Forum
Solar Photovoltaic (PV)
Reply
RE: DHW with Grant Aerona link to cylinder temperature

@fjj 52degC is a good thermostat setting, the flow from the ASHP needs to be 3-5degC higher than the tank cylinder setting thermostat or you're just b...

3 years ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Rate the quality of your heat pump design and installation

Seems to be the norm. Decent install on the wet side with monobloc and rads. Usual mediocrity with the rest: Condensate drainage overlooked, check. ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: DHW with Grant Aerona link to cylinder temperature

@FJJ, I have the same set up. Grant 10kW Aerona, pre-plumb 250l cylinder, iBoost. The iBoost just runs on the 3kW immersion heater, which I don’t thin...

3 years ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Eco Heatsense: a game changing radiator valve

@derek-m or a bag of sparks, or a box of rivet holes, or some sky hooks. I fell for the lot when I served my time.

3 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
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