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Oswiu
@oswiu
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Estimable Member
Joined: Oct 19, 2022
Last seen: Feb 5, 2024
Profile Activity
Topics: 2 / Replies: 119
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Reply
RE: Ecodan with UFH flow temperature consuming 130kWh per day

Is the 130kWh electricity usage or heat delivered? If it's heat output then that corresponds to a heat loss of 5.4kW which isn't unreasonable for many...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP cage, surround or protection

I've seen people do this for aesthetic reasons (possibly harming their performance), but what is the motivation behind a protective fence? To protect ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Massive Electricity Cost

I believe oil usage in litres multiplied by 10 to be your heating requirement in kWh, so with 6 lots of 250L per year that suggests you need 15, 000kW...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: MCS Certified installer problem

Although that's the case, it's very liberally (unfairly) interpreted in this case since it's sheltered on three sides, but not in a way one of those p...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: MCS Certified installer problem

Wow the positioning of that heat pump is shocking. It's barely got any room behind it, it has almost no room around it, it's well closer than 1m to th...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Massive Electricity Cost

There clearly are differences between them, but I would say generally it's the system design that matters more than what is outside. I spent a while l...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: MCS Certified installer problem

@parmstar so on the temperature front it's clear they just didn't design as you asked. Your actual heat losses could be over 10% higher than that with...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: MCS Certified installer problem

@parmstar sorry to hear about your problems. What is your heat pump model number, the calculated heat loss of your home and the design flow temp? I ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Massive Electricity Cost

This may or may not be the case, I was just going off what it said in the above Grant manual. It seems to have a 1 (on) or 0 (off) control, then a two...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Massive Electricity Cost

@bretix they told you you'd use over 31,000kWh on your heat pumps and you're on track to use 17,000kWh of electricity including your general usage and...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP - Want to run 24/7 but continually calling for heat

This is what I came to, but then I couldn't understand how there could be 3.3kW of ventilation losses in a house that's only 5 years old, since OP sai...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Warmflow ASHP costing a fortune to run and ignored by installer

Did you have a heat loss survey done? Did the installer suggest changing the rads to work with a heat pump?

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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