Last seen: Nov 14, 2025
We don't and they may well be overstated. Certainly there is a reduction in efficiency because the heat pump has to run at a higher ft, but this migh...
Possibly not. As I understand it this mode, which many heat pumps have, caps the compressor speed which reduces the maximum output but not the minimu...
It will, but it's heating more than you need assuming you are happy with the current downstairs temp and unlikely to fix the basic problem ie that the...
Indeed. In this case I would personally leave it to the heat pump. However if you can align the cycling to cheap periods that's a wholly different s...
Yes, as can more capable heat pump controllers
... which is probably its min output. At 12C you would expect cycling even if the pump was right sized, it gets colder later this week so i suggest r...
That will be the water pump capacity not the heat pump capacity, which is dependent on the house loss. The water pump may be on longer than the heat...
That's disappointing. It's way oversized almost without any doubt. 6kW is probably nearer the mark, possibly less. I will re-read your description...
@iraknic Ok I was hoping 6 was 6kW not 6 tons (an American measure of capacity roughly equal to 3kW). I suspect it's well oversized. What do y...
I am not familiar with the Hitachi monitoring so someone else will need to answer this. If you can monitor power consumption it will be visible in th...
@transparent @sicky Just a couple of observations 1. Sadly I would say the standard of work is exactly what one expects, this is either the b...
Latest Posts
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RE: Ecodan ASHP Low COP and Unstable Compressor Frequency
First things first, @lukewarmbath, and welcome to the f...
By Majordennisbloodnok , 8 minutes ago
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RE: Renewables & Heat Pumps in the News
@jamespa Well not quite as ’sh1t’ does at least have us...
By Toodles , 12 minutes ago
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RE: Confusion over Octopus Tariffs
@toodles found this thread and was reading it when noti...
By AgentGeorge , 16 minutes ago
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RE: New Fogstar 15.5kWh upright solution
I can't get any of those URLs to work...... even if I r...
By Transparent , 20 minutes ago
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RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?
I confess to being intrigued. As @jamespa says, I'm sur...
By Majordennisbloodnok , 1 hour ago
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RE: Who's your electricity provider and what's your tariff?
@technogeek Yep, the same here. Toodles.
By Toodles , 1 hour ago
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RE: Maximising Home Automation: Integrating Octopus Energy & More
Thank you and I agree most people can stay clear of net...
By Batpred , 2 hours ago
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RE: The Hidden Secret to a Successful Heat Pump: Pipe Size Matters
@jamespa Yes that post.
By dgclimatecontrol , 2 hours ago
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RE: Faulty Clivet heat pump out of the box
@steveimpey glad you got it sorted and agreed- being ig...
By benson , 3 hours ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp
50l LLH install would have introduced a shedload more a...
By JamesPa , 5 hours ago
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RE: Help me keep the faith with my air source heat pump installation
@agentgeorge it has got 2, the other bleed screw is the...
By AdamK , 15 hours ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
Hi Only joined the forum today and have found this t...
By Pwils , 18 hours ago
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I too felt the podcast was useful but think it could do...
By AndrewJ , 19 hours ago
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@adamk apologies but did not understand what exactly yo...
By Eliuccio , 20 hours ago
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Putting a 30 cm. radio controlled wall clock on Freegle...
By Toodles , 20 hours ago
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RE: Havenwise App Help & Forum Support – Get the Most from Your Heat Pump
@nickhorne Unfortunately not. We take the "normal" IOG ...
By HCas , 2 days ago
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RE: Mixture of copper and plastic CH pipework. Will it be ok, or need changing?
In principle yes. Some heat pumps (I think including D...
By JamesPa , 2 days ago
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RE: Solis S6-EH1P8K-L-PLUS – Why I Chose It and What I’ve Learned So Far
Some of the circuits in my home are not protected by RC...
By Batpred , 2 days ago
