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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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RE: Army Housing- Ecodan with UFH efficiency?

Okay, I will describe how I think that your system should operate for best efficiency, and then you can check around the system and see if it is worki...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Army Housing- Ecodan with UFH efficiency?

Hi Cal, Yes, I found all the photo's and have now approved. The above is a differential pressure valve, though I am still trying to figure out wha...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Army Housing- Ecodan with UFH efficiency?

If you can show a closeup of the nameplate on any equipment it will make it much easier to identify.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Army Housing- Ecodan with UFH efficiency?

Hi Cal, The LWT is the temperature of the water leaving the heat pump, the RWT is the temperature of the water being returned to the heat pump. Simp...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Army Housing- Ecodan with UFH efficiency?

Hi Cal, Welcome to the forum. It would appear that you have already made a good start by turning up the thermostats and adjusting the WC curve and DH...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Rate the quality of your heat pump design and installation

If you only wish to heat one room then maybe you should consider an Air to Air ASHP, which would be much cheaper to run than your present Air to Water...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Massive Electricity Cost

If the pressure has dropped to zero then I suspect that you have a leak somewhere.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Rate the quality of your heat pump design and installation

Are the savings shown based upon present installation cost and energy prices? Can you get any form of grant to help with the cost? You have somewhat...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: MCS Certified installer problem

Where is the small pump to pump the condensate up to automatically water the plant? 😋

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Rate the quality of your heat pump design and installation

Why not do something to improve the energy efficiency of the 'leaky old house', then you may even be able to install an unsuitable heat pump.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi Ecodan & Raspberry Pi automations

Hi Kev, I have looked at the Mitsubishi data, but it is not apparent what the nominal resistance value is for the actual thermistor.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP at cold temperatures

It is merely a matter of balance between the amount of heat energy supplied and the amount of heat energy lost. If the heat loss of your home is say...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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