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Last seen: Jun 27, 2025
They will be steel, zinc plated then powder coated. The powder coat will be polyester rather than epoxy, for better UV stability.
Yea, you can do it by measuring the temps and pressures at certain points of the system. Then you calculate what the correct values would be for the f...
it’s very difficult to measure the charge, it is weighed in when filled at the factory. And there aren’t anywhere near enough f gas qualified technici...
@heacol is the man…. But he’s very busy.
Agreed, going direct would bring a benefit on efficiency. Can the ecodan drive a pwm primary pump? I haven’t checked the wiring diagrams .
Cycling looks fine to me, not too short. It’s bubbling along at 6.5kW ish, all night. Heat loss is very good for something that’s 400 square meters. W...
Ok, so the primary pump is not pwm controlled so the heat pump isn’t able to modulate it’s flow. Not the end of the world but certainly not the most e...
How many cables go to this pump? It will either be one, or two. With the ecodan controller located in the airing cupboard, your system is installed ...
Is the controller in the hallway or in the cylinder cupboard? and I’m asking for photos so I can map out the plumbing layout…. It saves me asking yo...
Please provide some photos of these items so we can identify versions etc…. please also photograph the unvented cylinder and associated pipework
OK, so you are paying 34p/kWh - good... Then my above maths adds up. We just need to get these settings tweaked so that the weather compensation is ...
Please give us more details, are you currently on a TOU tariff? If you’re paying 48p/kWh then that would suggest so. In which case there are some op...
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Degrees of Separation
Latest Posts
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Thank you, I’m thinking along these same l...
By Toodles , 2 hours ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 2 hours ago
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RE: Questions about A2A for heating as well as cooling
@donciccio I would suggest that you take a "fabric-fi...
By Rob of York , 3 hours ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
Any idea how efficient your gas boiler is? Is it a 50 y...
By Old_Scientist , 8 hours ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
By Mars , 20 hours ago
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RE: Plug and play solar. Thoughts?
My thought is simple. Bring it on and bring on plug in...
By JamesPa , 1 day ago
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RE: Heat Geek mini store vs pump size
Yes I agree, that’s why Heat Geek have most likely sele...
By Tomtheheatingengineer , 2 days ago
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RE: Who's your electricity provider and what's your tariff?
@chandykris Swings and Roundabouts, you win some…. ...
By Toodles , 2 days ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 2 days ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 2 days ago
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RE: Is the "divide by 2900" rule still valid?
Really flow rate is a pipework limitation not a water p...
By JamesPa , 3 days ago
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RE: The good, the bad and the not that great – my heat pump installation
@burtis, I’ve followed this thread pretty much from the...
By Mars , 6 days ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
First time poster here but I can share my experience as...
By SCH , 6 days ago
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