Last seen: Sep 12, 2025
@ellyse In 2021 OVO was one of three Energy Suppliers selected to administer the installation of heat pumps in 750 homes. OVO was assigned the SE Engl...
The quality of the installation is extremely important @ellyse A heat pump doesn't work like a gas boiler.It stays operating all the time, adjustin...
Three-phase Distribution Boards / Consumer Units I've started looking to see if there are 3-phase DBs which are more suited to the domestic market.T...
Only two sizes of PV panel cable are widely available: 4mm² and 6mm² I have never yet met an installation which requires the larger 6mm² option! Y...
Hi @ellyse and welcome. Your question is going to need responses from a number of us.I'm from a technical background, so I'll stick to those aspects...
Smart Meters is one of my pet subjects, so I'd really like to give a good response to these points. In my area the DNO is NGED. It has been their co...
Yes. Your inverter has two independent PV inputs.Each one is rated at 550v 13.3A maximum whilst operating in MPPT mode.So, for example, you could have...
I'm struggling to follow that.I need units 😉 So you have 6 Canadian Solar panels, each rated at 425w and connected in SERIES to one of the ...
The problem with the maths is that you're starting with two different types of panel. I proposed (purely as an example) 425w panels manufactured by ...
@david999 we did the calculations for the number of panels you could connect earlier in this topic here. It depends on the rating of the panels, so ...
In conversations with engineers in the UK electricity supply network, they use the term 'off-grid' when the 240v AC is not synchronised to the 50Hz of...
Yes, I agree that my terminology doesn't embrace 'off-grid' in the way that it would be perceived by a crofter in Scotland, for example. I'm suggest...
Latest Posts
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RE: Humming sound on new install.
Well at least its well insulated, but Im not sure that ...
By JamesPa , 1 hour ago
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RE: Is a Valliant Inline 6kW heater a BUS buster?
Much of that is true in principle, but its not likely t...
By JamesPa , 2 hours ago
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RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
@dgclimatecontrol I attach the responses from 2 potenti...
By pash44pump , 6 hours ago
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I didn't want to say that, bus since you have said it n...
By JamesPa , 6 hours ago
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RE: Midea ASHP – how to set weather compensation
Mostly, I think, but with some caveats. I set the TI...
By cathodeRay , 8 hours ago
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RE: Is Your Broadband Router the Weak Link in Your High-Tech Home?
I have been working on network resilience for a while. ...
By Scalextrix , 10 hours ago
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RE: Failing heat pump system - seeking thoughts on a rebuild
I realise im overdue an update on my situation. first...
By Cleardene-ashp , 1 day ago
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RE: Replacing Worcester oil boiler with an ASHP
@toodles thanks. I was told by the engineer that this h...
By JulianC , 1 day ago
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RE: Who’s Caved and Switched the Heating On Already?
@allyfish Dogs have owners - Cats keep staff. You are o...
By Toodles , 1 day ago
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RE: What crazy nonsense are inverter limits and why are they imposed?
A week later, I'm finally picking up this comment... ...
By Transparent , 1 day ago
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RE: COP is not the only measure of efficiency
We keep all our TRVs fully open using the whole house a...
By Old_Scientist , 2 days ago
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RE: Havenwise App Help & Forum Support – Get the Most from Your Heat Pump
I am pleased to say at 4pm today we have added another ...
By ASHP-BOBBA , 2 days ago
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RE: Renewables & Heat Pumps in the News
To unpack this a little.... 1) how many of us in this...
By Lucia , 3 days ago
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RE: Vaillant aroTherm Plus 10kW thoughts?
@realevil the fans and fan speed / coil size (height, w...
By ASHP-BOBBA , 3 days ago
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RE: Mitsubishi Ecodan 11kw Defrosting Issue.
@morgan this can just be done by your sepecilist when t...
By ASHP-BOBBA , 3 days ago
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RE: Anyone still weathering it out with Agile?
@toodles I guess it all comes down to import averages. ...
By Tim441 , 3 days ago
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RE: 300 Liter Tank - Do I have to heat it all?
The size of DHW tank affects the anti-legionella cycle....
By Transparent , 3 days ago
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RE: Heat Pump SCOPs – The Truth Might Not Be What You Think
@scalextrix Name plate capacity
By HCas , 3 days ago
