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BobTSkutter
@bobtskutter
Member
Estimable Member
539 kWhs
Joined: Jan 11, 2025
Last seen: Feb 27, 2025
Profile Activity
Topics: 1 / Replies: 85
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Reply
RE: Setback savings - fact or fiction?

@cathoderay at constant room temperature, energy in = energy out Q = UA.DT tells you how much energy flows through an object, in this case a wall, w...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Setback savings - fact or fiction?

Slicing and dicing data can sometimes be fun, but it's often frustrating. I often start by asking "what do I think i'm looking for". So..."does se...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Setback savings - fact or fiction?

@cathoderay what would the plot look like if you used (Inside temp - Outside temp) as the x-axis? If Q = UA.DT the gradient of the trend would be UA...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: ASHP for small garage and workshop

@transparent, thank you. That makes sense. Much appreciated. Regards Bob

2 weeks ago
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Air Source Heat Pumps (ASHPs)
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RE: advice on excessive shortcycling and overall efficiency

That's a great photo to show of the pipework. It appears to show a low loss header (black vertical cylinder), which has been bypassed. There are two...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: ASHP for small garage and workshop

Thank you. The proposed ASHP would be a low power (4kW) device connected to an existing supply. Do I still need to inform the DNO? Thanks Bob

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: ASHP for small garage and workshop

Hello everyone, time for a dumb question. Am I allowed to self install a heat pump in the UK? It would be the only one on the property. It would...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Red Expansion Tank

Excellent, I'm glad it's settled down. Regards Bob

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Compute heat loss from energy used

I think your original calculation was based on propane LIQUID. You measured propane GAS volume, then converted it to LIQUID volume, then worked out ...

2 weeks ago
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Air Source Heat Pumps (ASHPs)
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RE: Is your gut better than Math

I wonder if those charts could be redrawn to make the LWT and RWT trends easier to read? Was the system in eco mode during the night when it was cycl...

2 weeks ago
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Air Source Heat Pumps (ASHPs)
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RE: Compute heat loss from energy used

@sussex-greenish I like your logic. Where does the 65.33kWh come from? I guess your LPG bullet has a flow meter on it and you've looked at the ca...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Heat output , science and practice

@Terry1812 welcome, you're going down a thermodynamics rabbit hole 🙂 Long story short, yes you're correct. At a fixed flow and a fixed DT your po...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
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