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iancalderbank
@iancalderbank
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Joined: Oct 17, 2022
Last seen: Jan 14, 2025
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Topics: 0 / Replies: 643
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RE: Flow rate for Samsung Gen6

samsung G6 flow rates for all sizes/p> @ardmark I think you said as a consequence of dropping the flow rate , you have had to increase the LWT by 2C...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Installation queries for Grant Aerona

@jwilliams89 a landing rad is a really good idea. you may want to turn down your bedroom rads if you prefer cooler to sleep. having a landing rad keep...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Installation queries for Grant Aerona

@jwilliams89 depends on a) how big your system / zone is and b) how far away / how long the pipe run! how big your system / zone is: Most "rul...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grundfos Secondary Pump Flow Rate

@dunlorn no worries you mean you have a life outside of heating system fettling 😉 ? I don't have that pump but the manual refers to an "SC" versio...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Installation queries for Grant Aerona

@jwilliams89 hopefully you can at least make them get the rad sizes right. thats a pain to change afterwards. can you persuade them to do something ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Installation queries for Grant Aerona

@grahamh no indeed , me neither, but would you concur at least, that the OP is being steered towards a system that is unlikely to be fit for purpose /...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Installation queries for Grant Aerona

@jwilliams89 so I am not an expert on ECO4 never having had anything to do with it, but from what I have read ( from people who should know in the in...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grundfos Secondary Pump Flow Rate

that sounds reasonable, and good that you've been able to measure it . how, if you don't mind me asking? getting 21lpm at 4.5M implies your pipewo...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Delta T with a Low Loss Header

@toodles so the other gotcha with dropping the pump power on the secondary side is that it will run at lower head , which means your "harder to reach"...

2 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
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RE: Delta T with a Low Loss Header

@toodles this diagram flow rates the same = temperatures the same. flow rate higher on the radiator side: has to pull from one of the lower (c...

2 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
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RE: Weather compensation and air source heat pumps

@sarah I just want to check on one thing. reading back, you say you have 3 controllers? that would suggest your system has been setup to work on 3 zon...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Delta T with a Low Loss Header

1. yes (provided that its open enough for some flow!). The more open, the bigger the flow through the rad, the lower the DT on that rad. 2. I don't ...

2 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
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