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Last seen: Mar 25, 2026
@jamespa No cycling, flow temp varies by less than 2 degrees, return is very stable. Today it is running at 38C varying by less 2C, since water heatin...
@jamespa Here's an update to my previous post. Mitsubishi engaged a subcontractor to investigate the poor performance of my heat pump. He concluded th...
@cold123456 Mitsubishi has failed to respond to my complaint. On 16 November I sent a formal complaint to Mitsubishi specifying that they had suppl...
@editor I was surprised to read your praise for Mitsubishi for remote connectivity and telephone support for diagnosing problems. Here's my experience...
@jamespa That is an acceptance by the installer, the problem is with Mitsubishi, it is their unit that is faulty. They have required payment to invest...
@jamespa Time for an update. My installer has been to visit and has confirmed that the heat pump is faulty. He has contacted Mitsubishi. They have req...
@jamespa I agree, I have the installer visiting tomorrow. Unfortunately Mitsubishi will not engage with me and insist that they deal with the installe...
@sheriff-fatman Thank you. Like you I am not chasing a particular COP, I am using COP to demonstrate the poor efficiency and hence the high cost. I ha...
@dgclimatecontrol I only have 1 cylinder and I can confirm that the Ecodan is set to standard, which I understand means that the heat pump alone heats...
@dgclimatecontrol I am on an Octopus Intelligent Go Tariff, so I tend to heat my water when that starts and then heat the house for the remaining dura...
@jamespa Thank you, just need to get it fixed!
Thank you for the responses. 3.4kW is in line with calculations and data that I collected last winter before having the heat pump fitted. I don’t ...
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Degrees of Separation
Latest Posts
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RE: Is it just me, or does tradesperson timekeeping and communication drive you absolutely mad?
Yes, and I would suggest likely to get worse with more ...
By Batpred , 4 hours ago
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RE: Electricity price predictions
This topic seems more suitable for this thread... I a...
By Batpred , 4 hours ago
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RE: Why are ASHP installs so expensive?
It is clearly difficult to say, there must be cases whe...
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RE: Who's your electricity provider and what's your tariff?
Hi all, I'm new to this game having spent the last 25...
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RE: Panasonic Free Multi Z and Etherea Internal units.
@dgclimatecontrol Thank you for that information and re...
By Toodles , 10 hours ago
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RE: My Kronoterm Adapt 0312 ASHP is finally installed!
@editor It was serendipitous really. Both my wife and I...
By tomasmcguinness , 15 hours ago
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@mrkfm, I'd also suggest that whenever you're ready, st...
By Mars , 1 day ago
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RE: Are you planning to use a wood burner to supplement your central heating this winter?
I use my stove daily for backup and comfort. Definitely...
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@rob-of-york Thanks. I wish I'd started on this site as...
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RE: Solar Power Output – Let’s Compare Generation Figures
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RE: Passiv Smart Thermostat - Help & Forum Support
Thanks Will. I'll probably be a week or so before get...
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RE: Cooling using an air to water heat pump
From experience this summer, a single-split A2A unit on...
By Rob of York , 2 days ago
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Analysis of the economics of switching to an A2W ASHP compared to other heat sources
This post aims to analyse the economics of installing, ...
By Rob of York , 3 days ago
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RE: Cooling with air to water heat pumps
@editor does that mean you have to have two separate ex...
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