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@heacol
Contributor
Noble Member
Joined: Aug 6, 2021
Last seen: Aug 4, 2025
Profile Activity
Topics: 3 / Replies: 404
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Reply
RE: Need ASHP advice for old (1882) stable development in SW Scotland - where do I begin?

@alan22 PM me and I will see what I can do, a lot of information needs to be gathered for a satisfactory outcome, it is not as simple as just throwing...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant 13kW Aerona3 - issues getting zones to temp

@crimson The fault is at Grants and MCS's door, the installer was, I presume, trained by them, I think you have every right to legally demand that you...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Depths for GSHP slinkys

@windyinsancreed At least 1.2 to 1.5 meters and straight pipes at least 1meter apart, the deeper they are, the less effect the weather has and the bet...

2 years ago
Forum
Grounds Source Heat Pump (GSHPs)
Reply
RE: Grant 13kW Aerona3 - issues getting zones to temp

@crimson Hi, Been dragged in by @editor 😀 I have not had time to read the whole thread, but, from what I can see, it is a typical Grant d...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Rethinking High-Temperature Heat Pumps
2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 8
Views: 755
Reply
RE: Heat pump delta T too low - 2c

@marzipan71 You may befit from replacing the valve, it will depend on the current flow rate and system design. If you have a buffer tank, it will prob...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: IVT Greenline multiple alarms

The ground loop pump must run when the heating is on, it may be a connection problem or the board has failed. You can as a temporary measure try conne...

2 years ago
Forum
Grounds Source Heat Pump (GSHPs)
Reply
RE: High temperature ASHP

It is quite possible to install a high temperature heat pump, and you can run it at high temperatures if you want to double your heating bill. However...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump delta T too low - 2c

@derek-m Correct but the best way to control flow is automatically with equipment that can do it for you. If your system does not have Delta T contro...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 17kw Grant Aerona heat pump not performing

@soniks Firstly, the engineers at Grant need to buy a new calculator or go back to school. 50 L/min will transmit 28Kw. You only need to transmit abou...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 17kw Grant Aerona heat pump not performing

@soniks As I said, 28 mm will be fine, a 28 mm pipe has an internal diameter of 26.2 mm, the Grant 17 Kw will produce about 14 Kw at -2 at 50 odd degr...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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