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Derek M
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Derek M
@derek-m
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Illustrious Member
Joined: Mar 4, 2021
Last seen: Sep 19, 2024
Profile Activity
Topics: 7 / Replies: 4405
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Reply
RE: Does our solar generation sound about right?

What size is your solar PV system?

3 years ago
Forum
Solar Photovoltaic (PV)
Reply
RE: Retrofitting: moving to ASHP old oil boiler in large old property - experience/advice please on MSC calcs

Look on the Appliances Direct website under 'Dehumidifiers & Heating', then select 'Heat Pumps', then 'Air Sourced'. There is quite a large list o...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Selling second hand heat pump

Why are you selling it and what make and model is it?

3 years ago
Forum
Buy & Sell
Reply
RE: Retrofitting: moving to ASHP old oil boiler in large old property - experience/advice please on MSC calcs

What you could consider, for the time being, is an Air to Air (A2A) heat pump, with several indoor units. It could be much cheaper, and possibly easie...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Retrofitting: moving to ASHP old oil boiler in large old property - experience/advice please on MSC calcs

@katcesca If you do decide to go with an ASHP, I would suggest that you perform a room by room heat loss calculation. It will then be possible to si...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Retrofitting: moving to ASHP old oil boiler in large old property - experience/advice please on MSC calcs

The 9 radiators that your installer is suggesting, are they gold plated by any chance? 🙄 I would suggest that you have a look at the range of radia...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan. How to run this efficiently with zero understanding.

You can of course do the reverse. If you know the quantity and wish to calculate the velocity.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Questions & concerns about heat pumps

Dealing with your solar PV problem first, a approximately 6.5kW array should be producing more that 1-1.8kWh at the moment, our 4kW array produced 3.2...

3 years ago
Forum
Introductions, Forum Rules & Updates
Reply
RE: Ecodan. How to run this efficiently with zero understanding.

It is metres per second, and it is a measurement of velocity, just as we measure the velocity of a vehicle in miles per hour. Most flowmeters measur...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan. How to run this efficiently with zero understanding.

@gotaashp I have read a fair number of older posts where you've described much of the above (in detail, and in a way that's understandable, thanks) ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan. How to run this efficiently with zero understanding.

Try changing the 'Interval' to 60 minutes for at least a full day and see if that reduces the cycling frequency.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan. How to run this efficiently with zero understanding.

If you system only requires a LWT of 36C at -3C, then that would indicate that you home is well insulated and that you have correctly sized heat emitt...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Page 183 / 369
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