
Last seen: Jun 24, 2025
It definitely won't @drew-pa The standing charge is based on seven different parameters, but is substantially set by what Ofgem allows for the regio...
Hi @jamespa you are very welcome to lever whatever knowledge you wish from this Forum. Roughly whereabouts are you in the UK?Have you got any commun...
The specification for the UK mains distribution grid is 230v, minus 6% to plus 10%which equates to 216 - 253v Equipment certified to G98 for grid-co...
You shouldn't be left to ponder this.Before a heat pump gets installed there should be an energy survey conducted (often by the installer).That's how ...
I would go a step beyond that recommendation. The pioneering development of on-chip wear-levelling algorithms was undertaken by the Israeli firm, M-...
I re-read it, and I think you're right @robl UKPN are actually allowing you a 34A maximum export to the grid. That has the potential to cause some s...
Thanks @rob1 - Sunsynk is the manufacturer which I expected someone to mention first. Here's one of their generic connection diagrams There's a ...
For someone to have succeeded in obtaining a G98 approval, then the battery will be DC-connected to the inverter the inverter will use some form ...
Here's my own graphical interpretation of the conditions under which the G99 Fast-track process can be used: The Electrical Networks Associati...
Not quite. If the inverter is an off-grid type then it only requires CE safety-level certification.G98 is only for devices that can export. These ...
That was an interesting conversation @redbuzzard Whilst we still here on the general 'Hello' topic, let me make three points: 1: Conservation area...
Yes, I can see the clips on the external pipes ... but the insulation has been compromised and is no longer able to prevent the ingress of water.R...
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Hep. Max drop is 10C. Tried changing and it 5C made no ...
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@jamespa Hi, No major issues just learning to live...
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RE: Solar to power Heat Pump for DHW
I was going to ask what model of Growatt inverter you h...
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RE: Commencing on an ASHP Installation Process
Quick progress update. It looks like there are only 2 ...
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There are DHW tanks with a built in heat pump that take...
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RE: Vaillant AroTherm Plus 7kW
If the thermostat is connected to the call for heat ter...
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RE: Renewables & Heat Pumps in the News
Yes I realise I'm picking this up a week late...... but...
By Transparent , 2 days ago
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@editor Mars if you have any recommendations for down s...
By abam48 , 3 days ago
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RE: Surface mount or bury primaries for heat pump installation?
@tomasmcguinness HI, The rules is a best practise, the ...
By ASHP-BOBBA , 3 days ago
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RE: Getting the best out of a heat pump - is Homely a possible answer?
@cathoderay how did you get a script to run for that- d...
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RE: Renewable Heating Hub Homeowners' Q&A Podcast
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@judith good to know… I’ll continue to feed Wattson, an...
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RE: My misgivings about installing ASHP and solar panels via the ECO4 scheme...
@editor great article re accreditation. I note ISO/IEC ...
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RE: Who's your electricity provider and what's your tariff?
I don't (yet), but my PW3 is due to be installed shortl...
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RE: MCS and NAPIT complaints process
@chrislay, is your heat pump complaint still unresolved...
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RE: ASHP Install from hell - help please
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By Mars , 6 days ago
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RE: RDSAP10 effect on existing heat pump EPC rating?
@aaron There's the rub, the database does not list my ...
By AF1 , 7 days ago