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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: ASHP Retrofit in a 2015 house with 10mm radiator tails

You are changing the water temperature to 30C, which makes the DT only 9C with an indoor air temperature of 21C.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP Retrofit in a 2015 house with 10mm radiator tails

The 50C is the standard Delta T used by radiator manufacturers to designate the heat output capacity. A radiator may be specified to produce 2014W wit...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP Retrofit in a 2015 house with 10mm radiator tails

@alistairgbarron Hi Alistair, I have attached a small spreadsheet that you may find useful with regard to your radiator sizes and heat loss. V...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: E121 error code on Samsung 12kw gen 6

Hi Craig, First of all you will be using more electrical energy, since it is now colder outside. You should also be aware that electrical energy use ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP Retrofit in a 2015 house with 10mm radiator tails

So if you know your daily gas consumption at an average ambient temperature, you should be able to work out a rough estimate of the heating demand. ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Measuring your COP

Tut tut Major, go wash your mouth out with soap, business and the World would grind to a halt. ☹️

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP Retrofit in a 2015 house with 10mm radiator tails

@alistairgbarron Hi Alistair, Welcome to the forum. A fairly simple way of testing the capabilities of your present system would be, as previous...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Measuring your COP

@editor Hi Mars, With each passing year, (which appear to be passing much too rapidly 🙁 ) I get more and more concerned with the way in which the ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Real world COP vs. manufacturer claim

I think that I would prefer a heat pump from a well known Japanese company, particularly after looking in detail at the data obtained under standard t...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: How many installers do you think have heat pumps at home?

Hi Mars, A further question that you could ask is 'how many paid the full price'?

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Measuring your COP

@cathoderay Having been involved with the RHH from its early days, like you, I too was quite surprised to read the disparaging comments about the fo...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Real world COP vs. manufacturer claim

@majordennisbloodnok You must have been lucky, and found a real Heating Engineer.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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