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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: Any Grant Aerona owners using their Low Loss Header immersion heater?

No unit should be using it's immersion element at this ambient temperature. It is only permitted to come on after the design duty point, which should ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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
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)
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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