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JulianC
JulianC
@julianc
Member
Noble Member
Joined: Mar 8, 2021
Last seen: Sep 11, 2025
Profile Activity
Topics: 6 / Replies: 329
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Reply
RE: Air source heat pump performance

That’s a whole lot of expansion vessels - 3? I’ve got one for the Mixergy tank. And the Daikin has an internal one

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Another should I or shouldn't I.

Good spot Kev M. Aj, what is the room by room heat demand / loss calculation? As Kev M says, changing every radiator is surprising. Can you do work t...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Another should I or shouldn't I.

So early days for me aj. According to my installer, 10mm micro bore are ok if your main system/loft pipes are at least 28mm. Ideally 35mm. Mine are. O...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Another should I or shouldn't I.

Your energy demand is v similar to mine. I didn’t have to change radiators (yet) I would suggest getting alternate quotes from different suppliers ...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My ASHP Installation

Derek, you are correct on the one hand. We get good solar gain when the sun is low in the sky (winter). In the summer when it’s high, the roof glass h...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: My ASHP Installation

We only have a consumption meter. Just checked, we’ve used 103 kWh in 12 days or 8.6/day. I guess bony running too much. H/w will be partially heated ...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My ASHP Installation

Nice one Kev M. How do you derive the “delivered” numbers? Do you have MMPS? We’ve so far used 93kWh in 12 days. I will have to see if, by pressing...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Rate your air source heat pump installer

I recommend Ecobubl. www.ecobubl.co.uk They are based in Warminster, but came out of their area to Worcestershire to design and install my Daikin...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Air source heat pump performance

That is a v good point Derek. Not considered it. Previously we switched off our oil boiler about now (April) and back on again on October. H/w heated ...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Worcestershire ASHP

Just seen your note Mars - what tweaks would you suggest? Ecobubl just departed, having sorted an issue with the Mixergy/Daikin not communicating. I...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Worcestershire ASHP

Hi Kev, yes it’s the full demand for heat & h/w. I’m hoping the 7500kWh is a maximum, and the requirement will be less. Since the heat demand/loss...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Worcestershire ASHP

Me too Mars. That’s the big question. The heat demand / heat loss calculation calculation said 7500kWh. SCOP is 2.9 Time will tell 🤞

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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