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@heacol
Contributor
Noble Member
Joined: Aug 6, 2021
Last seen: Aug 4, 2025
Profile Activity
Topics: 3 / Replies: 404
AllTopicsReplies
Reply
RE: Fine tuning your ASHP performance

@editor Mars, Maybe you need to re-design your system. There is probably not much to alter to get good performance. If you send me some information, I...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Fine tuning your ASHP performance

@derek-m Thanks, I also feel like I am banging my heat against a brick wall. However, If one person listins, they may tell another and maybe the mssag...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Fine tuning your ASHP performance

@editor By the way, Performance of the heat pump (COP) has nothing to do with how leaky your house is. It has to to with the distribution system and h...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Fine tuning your ASHP performance

@editor No, it is a 1930's ex council house with cavity wall insulation, double galzing installed about 20 years ago and 250 mm of rockwool in the lof...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Fine tuning your ASHP performance

@editor Low flow temperatures = low bills. It realy is that simple.

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Fine tuning your ASHP performance

@editor Mars, your unit had a co of 3, My customers had a COP of 5. He has used nearly halve the electricity you have to do the same job, that will be...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Fine tuning your ASHP performance

Markc, I am sorry to say but with a flow temperature of 50 deg C at this time of year, I hope you have a very big pocket because your bill is going to...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Air source heat pump performance

@caroline2000 Do not despair, 9 times out of 10 it is a case of so cloce but so far. Often with minor adjustnents to the equipment and the way you opp...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Air source heat pump performance

@caroline2000 Your high energy bills are mor than likly caused by your thermostats. The heat pump is running flat out all the time and not modulating,...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Disappearing hot water.

It is very simple, you are treating your heat pump in the same way as your old boiler, your het pump probably produces 5-12 Kw, Your old boiler probab...

4 years ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Say hello and introduce yourself

@helensq An air test of 4 m3/hr/m2/hour is not good at all, it is fine for a normal house with passive ventellation but not with an MVHR system, the h...

4 years ago
Forum
Introductions, Forum Rules & Updates
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RE: Concerned about running costs for our 2019 ASHP

@caroline2000 It is usually quite simple to correct the installation. Firstly I would need some information. What is the make and model of your hea...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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