Last seen: Sep 14, 2025
@crimson Unfortunately unless you change the installation, anything you do will have little effect on the performance of the system. Heating systems a...
@crimson I know they would say that, all Grant is interested in is stopping their unit from suffering low flow errors, they do not care about you and ...
@crimson Possibly, but I still think it is a water flow issue looking at the pictures. You will find a huge difference removing the low loss header an...
@crimson You are fighting a loosing battle, the low loss headers and the high temperature zone valves are tying both arms and 1 leg behind your back. ...
Yes it does, a direct swap, same 4" hole. The mini is fine.
I helped develop these, they are brilliant, I have 1 in my house and no damp or condensation.
@abernyte It very much depends on how your system is designed and operated. The poorer the system and SCOP the less effect glycol has on the overall p...
This is correct but you have not calculated the pumping requirements correctly. You have forgotten the increase in viscosity of the glycol mixture. At...
SCOP 5.3, not even close to the UK record. 😀
🤣 🤣 Lets see if we can double that SCOP, I do not think we will be that far off from what I understand of the system 😊
@editor I am not saying the units will not freeze in some conditions, and I have seen many, however it is the design of the unit it'self that will det...
According to Samsung, you either have to have antifreeze valves or glycol. As glycol will add 20%+ to your heating bill, it is not really an option. I...
Latest Posts
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RE: Electricity price predictions
@julianc Expressed as a flow diagram, I suspect one wou...
By Toodles , 1 minute ago
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RE: Big Changes Coming to Our Heat Pump System
@jamespa The dormitories at my boarding school (in Exet...
By Toodles , 4 minutes ago
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RE: Testing new controls/monitoring for Midea Clone ASHP
@cathoderay yes there is the modbus register list at th...
By benson , 14 minutes ago
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RE: Heat Pump Damage on install - useable or dealbreaker?
@benson I imagine that this may well be a Daikin unit a...
By Toodles , 25 minutes ago
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RE: Who’s Caved and Switched the Heating On Already?
In the last week, the external temperature in south Man...
By GrahamF , 15 hours ago
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Ok. Two schools of thought. The first is to run the ...
By JamesPa , 16 hours ago
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@drei Willing as I am to help, I don't think I'm yet ...
By JamesPa , 16 hours ago
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RE: Is Your Broadband Router the Weak Link in Your High-Tech Home?
I hear you on the locality issue @transparent, and I ag...
By Scalextrix , 19 hours ago
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Selling 5 year old ASHP & Gas Combi Boiler - £590
Selling a 5-year-old Daikin Altherma Hybrid Air Source ...
By Paul G , 20 hours ago
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RE: Midea ASHP – how to set weather compensation
@pash44pump Referring to the problem of rooms with diff...
By Tasos , 21 hours ago
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RE: Help me keep the faith with my air source heat pump installation
Er true, it should have read l/hr!
By JamesPa , 22 hours ago
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@damon thanks. I will do as you suggest. Hopefully I wi...
By bontwoody , 2 days ago
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RE: Is a Valliant Inline 6kW heater a BUS buster?
Much of that is true in principle, but its not likely t...
By JamesPa , 3 days ago
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RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
@dgclimatecontrol I attach the responses from 2 potenti...
By pash44pump , 3 days ago
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RE: Buffers, hot water and cooling
@dgclimatecontrol thanks, that's helpful.
By JamesPa , 4 days ago
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RE: Failing heat pump system - seeking thoughts on a rebuild
I realise im overdue an update on my situation. first...
By Cleardene-ashp , 4 days ago
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RE: Replacing Worcester oil boiler with an ASHP
@toodles thanks. I was told by the engineer that this h...
By JulianC , 4 days ago
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RE: What crazy nonsense are inverter limits and why are they imposed?
A week later, I'm finally picking up this comment... ...
By Transparent , 4 days ago
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RE: COP is not the only measure of efficiency
We keep all our TRVs fully open using the whole house a...
By Old_Scientist , 4 days ago
