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Oswiu
@oswiu
Member
Estimable Member
Joined: Oct 19, 2022
Last seen: Feb 5, 2024
Profile Activity
Topics: 2 / Replies: 119
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Reply
RE: Knowing a system will work before we commit to it

Things didn't quite go to plan with the install... They can't start this week, but rather next week, so that's a whole extra week without heating. We'...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Knowing a system will work before we commit to it

@alec-morrow Yes the boiler is completely shot, so no point doing a step-by-step change at this point. The installers have confirmed that they'll b...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Knowing a system will work before we commit to it

@alec-morrow Why would you particularly seek out a controller that can control both? I don't foresee running both at once, and I am hoping that now...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Knowing a system will work before we commit to it

I just got back from a lovely warm holiday in a different part of the world to a broken boiler! I turned the heating up a day before we flew back home...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Knowing a system will work before we commit to it

@derek-m Hi Derek, thanks for the post. I thought of that, hence why I thought if the radiator that needs to provide the most heat has 15mm pipes ...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Knowing a system will work before we commit to it

@robl I appeciate the maths here, but I feel that with all the uncertainties stacking with a real life measurement, it might come out worse than the a...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Buying solar+battery before house – thoughts and feedback welcome

It does sound quite ambitious, but I think it should be fine so long as you take measures to protect yourselves. What happens to the deposit if the ...

4 years ago
Forum
Solar Photovoltaic (PV)
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RE: Knowing a system will work before we commit to it

The results are in, and using a calorific value of 39.5 (my meter is in m3) and a flow temp of 70C, it started on about 18kW of gas usage, then settle...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan 14kW flow rates too low?

28mm pipe can carry 16.8kW of power if the difference in temperature between flow and return is 5C, which it probably is. This means that assuming the...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Knowing a system will work before we commit to it

That's exactly it. I fear that in the ASHP world, if you don't know at least as much as the person selling you it (assuming they're a sales person), y...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Knowing a system will work before we commit to it

I appreciate the vote of confidence! However, I don't think I dare go outside of MCS installations because it gives me recourse if something goes wron...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Knowing a system will work before we commit to it

I guess this is true, but it depends how well the heatpump can modulate its compressor/flow rate. Most, it would appear to me, do not modulate all tha...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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