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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: 4403
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Reply
RE: 17 year old ASHP needs replacement, should I go back to gas boiler?

Hi David, welcome to the forum. So you are suffering the age old problem of trying to decide what to do for the best. First of all I would question...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Daikin ASHP experiences as part of our Italian renovation project

I don't disagree that the system may have been piped up as shown in schematic 6.1, though the TS shown is the unpressurised version whereas the one in...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Observation about radiators and weather compensation

@cathoderay If you wish to calculate the COP with more accuracy, you could consider having the MMSP equipment installed, which like your power meter...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Daikin ASHP experiences as part of our Italian renovation project

@marzipan71 Well spotted Steve. I obviously failed my observancy test, by not reading through table 8.5 in sufficient detail. It would appear that...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Can I install my air source heat pump in the cellar?

Hi Iain, welcome to the forum. I agree with Mars that 100k does seem rather excessive even for a GSHP. I would suggest that you contact the GSHP ass...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Can I install my air source heat pump in the cellar?

@editor Hi Mars, What you actually stated is not entirely correct, since it is possible to get ASHP's that can be installed indoors, but have to h...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Daikin ASHP experiences as part of our Italian renovation project

@hughf Hi Hugh, The schematic 6.1 is generic, and does not relate to the installed model, so cannot be taken as to how the system has been install...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Observation about radiators and weather compensation

@cathoderay Based upon the information you supplied some time ago about your system, a predicted COP of 3 could be expected with ambient temperature...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Daikin ASHP experiences as part of our Italian renovation project

@hughf You may be correct. I will have a close look at the diagram tomorrow and get back to you.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Daikin ASHP experiences as part of our Italian renovation project

@marzipan71 As Hugh has pointed out, your system is one of the more complex arrangements, but with the addition of a power diverter or solar thermal...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Air to Air heat pump for a flat ? An improvement on Electric Ceiling Heating.

If the unit is mounted at ground level there is always the risk of it drawing the colder discharge air back into the intake at the rear. It may be pos...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Air to Air heat pump for a flat ? An improvement on Electric Ceiling Heating.

@heat-pump-newbie Hi Newbie, Were you complimenting me on my brilliant installation or the heat pump on it being neat and compact? Of course I did...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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