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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: Jokes and fun posts about heat pumps and renewables

Was the air conditioner a politician by any chance? 😜

2 years ago
Forum
Well & Truly Off The Grid
Reply
RE: iBoost alternatives?

It takes approximately 1.16W to heat 1 litre of water by 1C, so 300 litres will take 348W.

2 years ago
Forum
Solar Photovoltaic (PV)
Reply
RE: Numerous issues – 11kW Daikin Altherma 3

A heat pump can be reasonably loud when it first starts running, but like a car, once it gets up to normal running the sound reduces quite a bit. Le...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Numerous issues – 11kW Daikin Altherma 3

Yes, the comment was much appreciated, but wait until he gets the bill. 😋

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Numerous issues – 11kW Daikin Altherma 3

It is probably occurring because your heat pump is only supplying one room, and this is causing the speed of the water pump to keep being varied. Try ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Numerous issues – 11kW Daikin Altherma 3

Do you remember the story about the Hare and the Tortoise? At the moment you would appear to be running your heat pump like the Hare, when it is more ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Numerous issues – 11kW Daikin Altherma 3

To keep the rooms at a reasonably constant 21C, you would need to set all the thermostats to 22C, except for rooms like bedrooms that you may wish to ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Numerous issues – 11kW Daikin Altherma 3

As it has been pointed out previously by other forum members, the primary objective with heat pumps is reasonably continuous operation at low LWT, not...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant flow rates, Delta T, buffer sizing - trying to get ASHP running well but hit a brick wall.

The only way to be certain would be to physically trace the pipework from your heat pump to your buffer tank, and then from your buffer tank to heat e...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant flow rates, Delta T, buffer sizing - trying to get ASHP running well but hit a brick wall.

Could you please provide a photo of how the sensor are installed around the buffer tank. Identify each sensor and the pipework. There would appear t...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Numerous issues – 11kW Daikin Altherma 3

I had noticed that the temperatures were high, but had assumed that you had been running DHW heating. I don't have a Daikin heat pump, but cannot unde...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Numerous issues – 11kW Daikin Altherma 3

Looking at photo ending 1359, the Leaving water at 48.8C is the LWT, and I believe that the Inlet water temp. of 40.1C is the RWT. This would indicate...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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