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Temperature_Gradient
@temperature_gradient
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Joined: Aug 25, 2025
Last seen: May 31, 2026
Topics: 3 / Replies: 49
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RE: Heresy? or pragmatic engineering? - a suggestion for the a segment of the 'failed boiler/distress purchase' market'

So on that topic, would there be a time and cost saving from using a refrigerant-split type heat-pump compared to a monoblock for some installs? Putti...

4 days ago
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RE: Heresy? or pragmatic engineering? - a suggestion for the a segment of the 'failed boiler/distress purchase' market'

That's a reason to replace the existing cylinder to a new one with a bigger coil, but you can buy both vented and unvented cylinders with bigger coils...

4 days ago
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RE: Heresy? or pragmatic engineering? - a suggestion for the a segment of the 'failed boiler/distress purchase' market'

Good topic - why are virtually all installers converting the plumbing and fitting unvented cylinders, even when there's existing plumbing for a vented...

4 days ago
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RE: Heresy? or pragmatic engineering? - a suggestion for the a segment of the 'failed boiler/distress purchase' market'

@batpred The benefit of the split refrigerant units is that the pipework sizes to the outdoor unit are a lot smaller than the primary pipe to a mon...

4 days ago
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RE: Heresy? or pragmatic engineering? - a suggestion for the a segment of the 'failed boiler/distress purchase' market'

I agree, and that's why I think the Dutch and the Italians have got it correct with their support for hybrid heat pumps - the old boiler fails, the ex...

4 days ago
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RE: Adding 5 More Panels to My Growatt Inverter – Second String Questions on Specs, Cabling & Configuration

There's a threshold at 3.6kW / 16A, below this follows one process G98 which is typically connect and then notify with this being permitted, above thi...

1 week ago
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RE: Heat Pump Operation in Summer - Valliant 7kW

Is there anyone here on the forums with an Air-2-water heat pump using it for cooling purposes during the upcoming heat-wave?

2 weeks ago
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RE: UK warm homes plan - how can it be delivered?

@batpred Look at what makes heat pump installations difficult - you need a new, typically quite large/larger cylinder, significant replumbing of th...

2 weeks ago
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RE: UK warm homes plan - how can it be delivered?

@batpred If it needs a battery to ensure a good outcome with a heat-pump, then the hurdle gets even higher as now the home-owner needs to find the ...

2 weeks ago
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RE: UK warm homes plan - how can it be delivered?

That looks like the direction the policy makers are heading, but I think in reality it won't happen, the extra cost of a heat-pump compared to a simpl...

2 weeks ago
Topic
Replies: 7
Views: 189
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RE: A2A vs A2W: Which Heat Pump Would You Pick?

Here's a few from me: 1. For homes with existing central heating, looking at heat pump solutions and wanting a solution which can provide both heati...

3 weeks ago
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