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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: Grant 10kW versus Samsung 12kW - sizing dilemma with ECO4 installation

on this , although you say you aren't a natural techie, try downloading and reading the manuals for the user-facing controller for each. For samsung, ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant 10kW versus Samsung 12kW - sizing dilemma with ECO4 installation

@tobyg a target flow temperature of 50C is not low, in a heat pump system. its a high flow temperature. If your system is being sized for 50C flow at ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Slash Your Heat Pump Bills Overnight

@cathoderay I don't think it can happen widely. to be honest I'm a little bit puzzled by the original post. I can see how this works with a large UFH ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan - optimal external installation?

@rhh2348 ok get it, you want to focus on the external. I do think it would help if you post some photos. picture paints a thousand words and all that.

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant 10kW versus Samsung 12kW - sizing dilemma with ECO4 installation

@allyfish thanks. yes the whole way defrosts work is an issue. the next HP I buy whenever that is, will hopefully have a better engineered way of doin...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Defrost Cycles - How Common Are They?

almost certainly yes. looks like your target WT is around 47. For comparison here's mine from the sub-zero weather on the 18th. Target WT is 41 at -7,...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant 10kW versus Samsung 12kW - sizing dilemma with ECO4 installation

just trying to assist the OP: are you saying that at -3C, its effectively a 7.5kw machine? what's the target WT? the samsung 12 is effectively a ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Slash Your Heat Pump Bills Overnight

where does one put the heat from the overnight boost? the options I can see are a) heat whole house to a high temp at night. then house will cool ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

pump speed tweaking is a thing you will need to do with an LLH in the system. If you can snapshot , or better track the values in various situations, ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Is the Samsung Gen 6 12kW AE120RXYDEG ASHP right for me?

@tobyg that means it will produce 11.1 kw of heat output, when the outside air is at 7c, and the heat pump water is at 35C. whilst consuming 2.1kw of ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

@crimson emitters sized for 53.5 flow temp in a new install is not something I would accept. especially if you are needing to run at that now, when it...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

ah ok. if the zone is always calling for heat, but the ASHP is shutting off because the ReturnWT is too high, then something is meaning that not enou...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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