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Alec Morrow
@alec-morrow
Contributor
Honorable Member
Joined: Jan 7, 2022
Last seen: Sep 4, 2025
Profile Activity
Topics: 8 / Replies: 208
AllTopicsReplies
Reply
RE: Govt petition for review of EPC calculations to assist ASHP/GSHP

i’ll join you. Heat pumps aren’t special, they are just another heat source for a heating system boiler manufacturers use the same compensation c...

4 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: High air source heat pump running costs – Vaillant AroTherm Plus

@webcmg why did you want heat in the radiators…the whole point of any heating system is to have warm rooms, NOT hot radiators!

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Weather compensation and air source heat pumps

@derek-m the difference is of course what happens in your industry stays in your industry, but what happens in the heating industry leaves a wake of u...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Weather compensation and air source heat pumps

@derek-m we do ask and nothing happens. Genuinely whilst are regulatory standards are not in line with the manufacturing countries, nothing will chang...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Weather compensation and air source heat pumps

yes a lot of more engaged installers are is in despair. Over the years there have been efforts to engage manufacturers and update training. it meets ...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Weather compensation and air source heat pumps

As an installer i can assure you there is no training on weather compensation, its correct application and the multitude of parameters anywhere. Those...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New Ecodan 14kW ASHP owner

@kev-m a circulation pump is used to circulate hot water around a loop to reduce the wait at a tap. presumably the cylinder has moved further away fro...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP Install from hell part 1 - the schematic - EXPERTS PLEASE VIEW

Radiators all are sized for peak load AND a rapid heat up time. If the rapid heat up time is designed out with weather compensation there is no need t...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP Install from hell part 1 - the schematic - EXPERTS PLEASE VIEW

if that is not happening then opportunities for efficiency are lost two ports create standing losses ie wasted heat they can be used with the rig...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP Install from hell part 1 - the schematic - EXPERTS PLEASE VIEW

The key to optimising energy efficiency with a heat pump and condensing boiler is constant flow with variable temperature. Thus as room temperature ri...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP Install from hell part 1 - the schematic - EXPERTS PLEASE VIEW

i stop looking when i see two port valves and i’m a 62 year old heating engineer. high efficiencies can only be delivered with constant flow and varia...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Say hello and introduce yourself

@london-trader really it depends on floor structure. ceramic tiles on screed can have a curve as low as 0.2 or 0.1 also make sure the time windo...

4 years ago
Forum
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