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IaAck
@iaack
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Estimable Member
Joined: Mar 8, 2023
Last seen: Jan 12, 2026
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Topics: 0 / Replies: 59
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RE: Setback savings - fact or fiction?

@sunandair I think you will also need to take account of the energy lost through Latent heat of fusion e.g. To turn 1 kg of ice at 0°C into water at ...

20 hours ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: LiFePO4 lithium battery fires and explosions

@transparent the eFiXX team posted s youtube video earlier this year on this subject. "We set out to do what no one should: try to destroy a lithium ...

1 month ago
Forum
Energy Storage
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RE: Electricity price predictions

@batpred my understanding is the current limit for hydrogen within the natural gas network in GB is 0.1% by volume, as set out under the Gas Safety (M...

1 month ago
Forum
Electricity, Tariffs, Monitoring & Providers
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RE: Electricity price predictions

@batpred This is part of the aims of the regulation (5) This Regulation aims to facilitate the penetration of renewable gas and low-...

1 month ago
Forum
Electricity, Tariffs, Monitoring & Providers
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RE: Electricity price predictions

@jeff You seem to have a grasp of all things regulatory, so what's you view....should we be keeping an eye on what our European neighbours are doing a...

1 month ago
Forum
Electricity, Tariffs, Monitoring & Providers
Reply
RE: Evaporator Temperature

@trebor12345 Yes, expect defrost cycles to initiate at evaporator temperatures between -20 and -35 degC depending on refrigerant gas, plant design and...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Evaporator Temperature

For an air-source heat pump the minimum evaporating temperature depends on the compressor design and the manufacturer’s operating envelope. Typical...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

@crimson This youtube might be of help The narrator's voice sounds kind of familiar 😂

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: One flow valve appears to be duff

You might want to consider the following common faults: Air in the System/Pipes (Air lock): This is the most common problem. Trapped air prevents wa...

2 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
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RE: Oil Boiler & Heat Pump Hybrid System

@paultheheating How do you currently recoup the oil cost from the tenant and who pays the electricity bills? My understanding is the BUS grant is du...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Electricity price predictions

@jeff The cost of an electric motor is pretty insignificant compared with cost of electricity it consumes in its operational lifetime. The cost of ins...

3 months ago
Forum
Electricity, Tariffs, Monitoring & Providers
Reply
RE: New build installation query

@jamespa I think you are right about a hotel type hot water feed. Hot water seems to return, see the secondary return shown in this section of dia...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
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