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@heacol
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Noble Member
Joined: Aug 6, 2021
Last seen: Oct 1, 2025
Profile Activity
Topics: 3 / Replies: 411
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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...

3 years ago
Forum
Ground 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)
Reply
RE: 17kw Grant Aerona heat pump not performing

@soniks change 28 mm primaries--- wrong, I have 30Kw heat pumps on 28 mm primaries very successfully Buffer tank--- Wrong in any circumstance unless...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Some big changes are coming to heat pump installation training

@kev-m I understand where you are coming from, but it is wishful thinking. The industry did try to do exactly what you are asking and came up with the...

3 years ago
Forum
Safety, Regulations, Tools, Plumbing & DIY Installations
Reply
RE: Some big changes are coming to heat pump installation training

@derek-m Oh I wish. Unfortunately, we follow behind a myriad of idiots that blow your assumptions out the water.

3 years ago
Forum
Safety, Regulations, Tools, Plumbing & DIY Installations
Reply
RE: Some big changes are coming to heat pump installation training

@kev-m Unfortunately you are Oh- So-Wrong. If the builders had followed the building regulations over the last 30 years, you may be right, but they ha...

3 years ago
Forum
Safety, Regulations, Tools, Plumbing & DIY Installations
Reply
RE: Some big changes are coming to heat pump installation training

PM Me

3 years ago
Forum
Safety, Regulations, Tools, Plumbing & DIY Installations
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