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Joined: Jan 20, 2022
Last seen: Jul 22, 2025
Profile Activity
Topics: 16 / Replies: 2416
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RE: Bivalent (or even trivalent!) system design options for a new GSHP installation

What about pictures of the outside?I've been testing DC breakers, trips and rotary isolators from different manufacturers, and I'd like to know which ...

1 year ago
Forum
Grounds Source Heat Pump (GSHPs)
Reply
RE: Is this a bad installation and is there something wrong with my Samsung heat pump?

If @sjn is correct that this is an RS485 connection, then those wires should be a twisted pair, not a 2-core lighting flex. Approximately how long ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is this a bad installation and is there something wrong with my Samsung heat pump?

There might be a queue @hughf I still think @david999 should be involving his local councillors. 1: They lead the organisation which issues Letter...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is this a bad installation and is there something wrong with my Samsung heat pump?

It's untidy because the installer has obviously not wanted to cut the wires too short.That's not a problem on its own. It's a shame that the enclosu...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Bivalent (or even trivalent!) system design options for a new GSHP installation

Let me pick up other two top-level questions. 1: We need to understand the difference between a grid-tied inverter and an off-grid inverter, because...

1 year ago
Forum
Grounds Source Heat Pump (GSHPs)
Reply
RE: Bivalent (or even trivalent!) system design options for a new GSHP installation

After 3 days, I'm now returning to this topic and the plethora of points made by @algienon Well, I hadn't intended that particular 1st edition of...

1 year ago
Forum
Grounds Source Heat Pump (GSHPs)
Reply
RE: Bivalent (or even trivalent!) system design options for a new GSHP installation

As it's DC, then it's already rectified 😉 Sorry. It's past my bed-time....

1 year ago
Forum
Grounds Source Heat Pump (GSHPs)
Reply
RE: New Fogstar 15.5kWh upright solution

Sorry I don't have knowledge of CAN protocols/standards.All my in-house stuff is based on Modbus over RS485... ... but we have had some success with...

1 year ago
Forum
Energy Storage
Reply
RE: Bivalent (or even trivalent!) system design options for a new GSHP installation

Just parking the detail of the storage battery issue to one side for the moment, I'd like to rebuild @algienon 's last post into something my brain ca...

1 year ago
Forum
Grounds Source Heat Pump (GSHPs)
Reply
RE: Optimising Energy Efficiency in Rural Aberdeenshire - GSHP vs. ASHP

No.The only part of a tariff which changes according to your geographical location is the portion which goes to the DNO for your region for the electr...

1 year ago
Forum
Grounds Source Heat Pump (GSHPs)
Reply
RE: Optimising Energy Efficiency in Rural Aberdeenshire - GSHP vs. ASHP

Ah... we've just been relocated! 😎 So, apart from wanting to know the model of inverter being used to export that 3.6kW I have two other qu...

1 year ago
Forum
Grounds Source Heat Pump (GSHPs)
Reply
RE: Optimising Energy Efficiency in Rural Aberdeenshire - GSHP vs. ASHP

Woah.... Not so fast @algienon ! Great aspirations, but may I bring this conversation back to a strategy which is more likely to be achievable withi...

1 year ago
Forum
Grounds Source Heat Pump (GSHPs)
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