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Adrian
@adrian
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Joined: Oct 15, 2024
Last seen: Mar 29, 2025
Profile Activity
Topics: 1 / Replies: 28
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RE: Roughly confirming ASHP sizing using existing heat data

From my experience I’ve learned the following: the heat loss calculation is definitly an estimate. For starters the u values of the materials and t...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump quotes: Advice needed

you can play around with the answers to get to the right value. Like you I already knew the heat loss so I changed the build year until I got the righ...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump quotes: Advice needed

You might want to give Boxt.co.uk a try. At least for me they had octopus level price, but were able to proceed quite quickly. They also give an upfro...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mixing of pipework/components' with different internal dimensions - theory vs reality/practical approach

Maybe the analogy is imagining that cars could just drive faster through those single carriage section. All that acceleration and extra friction would...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump quotes: Advice needed

My answers to your initial questions: 1. They are all close enough and match your usage figure to be right. I’d say the not so local firm is wrong t...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Totally bewildered with my ECO4 heat pump installation

it’s because there are 10kwh hiding in every Liter of oil.

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Totally bewildered with my ECO4 heat pump installation

Hi, I think partly the problem is the immediate feedback that the electricity meter provides, versus the oil boiler where (I presume) you just get the...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is My Midea Heat Pump Inherently Defective?

No answers here, just some observations. Your flow temperature is reasonably high, which maybe indicates slightly smallish radiators and would give ...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Agile: average import cost vs other tariffs?

I’ve got: 5kW heat pump, but only 2.5kW heat loss, so max consumption of 2.5/3=0.75kW from the heat pump. 9.5kWh battery. Solar doesn’t produce a...

3 months ago
Forum
Electricity, Tariffs, Monitoring & Providers
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RE: Double heat pump for DHW?

I don’t think there is a problem. Given a water saving shower head and a 5 minute shower, that’s: 4l/min x 5min x 5 = 100l. So even the smallest 150...

3 months ago
Forum
Domestic Hot Water & Cylinders
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RE: Heat loss calculators and spread sheets

just some comments by a door blower tester that they have never seen a higher value than 1 and the fact that in my calculations I could only get close...

4 months ago
Forum
Safety, Regulations, Tools, Plumbing & DIY Installations
Reply
RE: Heat loss calculators and spread sheets

I agree, it is weird that we are suppose to trust this whatiffery, but not our own usage data. after all, as was stated above, assuming a linear relat...

4 months ago
Forum
Safety, Regulations, Tools, Plumbing & DIY Installations
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