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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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Reply
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...

10 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...

10 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...

10 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...

10 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...

10 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.

10 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...

10 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 ...

10 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...

10 months ago
Forum
Electricity, Tariffs, Monitoring & Providers
Reply
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...

10 months ago
Forum
Domestic Hot Water & Cylinders
Reply
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...

11 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...

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