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bontwoody
bontwoody
@bontwoody
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Noble Member
Joined: Mar 5, 2022
Last seen: Aug 20, 2025
Profile Activity
Topics: 29 / Replies: 808
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Reply
RE: Electric water heater

Hi, im not quite sure that I understand what you are asking, but an electric heater will have close to 100% efficiency whereas a heat pump will have s...

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

@amanda1 Mine was after 12 years without even a service 🙂

2 years ago
Forum
Introductions, Forum Rules & Updates
Reply
RE: Say hello and introduce yourself

@cathoderay Well that solves the issue of where the extra heat is going, its being used at night 🙂 I think your house is so thermally leaky, that al...

2 years ago
Forum
Introductions, Forum Rules & Updates
Reply
RE: Say hello and introduce yourself

@cathoderay Thanks for the data. I have uploaded some of my own for a period of similar outside temperature. The first thing i notice is that your flo...

2 years ago
Forum
Introductions, Forum Rules & Updates
Reply
RE: Say hello and introduce yourself

@cathoderay Sorry, I should have been clearer. I was talking about kWh in gas v kWh in electricity multiplied by the COP. ie if I used 24 kWh of gas p...

2 years ago
Forum
Introductions, Forum Rules & Updates
Reply
RE: Say hello and introduce yourself

@cathoderay Hi, I did read the post about the "paradox" you saw with your oil/electricity comparisons and tbh I couldnt understand why it should be. C...

2 years ago
Forum
Introductions, Forum Rules & Updates
Reply
RE: Say hello and introduce yourself

@cathodeRay I really cant agree with this statement for the reasons I will outline below, but in a practical terms I have self installed two heat...

2 years ago
Forum
Introductions, Forum Rules & Updates
Reply
RE: FYI :- JG Speedfit pipes and heat pumps

Hi I installed my first heat pump using JP Speedfit fitting entirely. After 10 years no problems. I didnt run it continuously though as the property...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP hot water vs solar PV via diverter - tank average temperature

Could well be the case. Is the ASHP coil below the immersion? Some tanks have a circulation pump that helps even out these variations

2 years ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: ASHP - how to buy

@Jimbo37 I fitted my own ASHP so cant really comment on whether that is usual, but personally I would run a mile if a company wouldnt tell me what the...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New hot water cylinder future proofed for heat pump?

Hi, @Pen-y-Bryn I had exactly the same situation as you and went for a Mixergy Unvented cylinder. It has a conventional heating coil and immersion hea...

2 years ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: What central heating system to have

Solar panels are an excellent addition to a heat pump for keeping the electricity costs down. If you are concerned about the hot water temperature you...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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