
Last seen: Jun 28, 2025
About Me
Until retirement, I worked for an investment bank providing financial advice to the private-sector sponsors of major infrastructure projects. Examples include the Dartford Crossing, M6 toll road, Quito airport, power generation projects, and various oil and gas pipelines including one that recently got blown up in the Baltic. More recently working in the UK with a small power company providing contracted services to National Grid.
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Mitsubishi Zubadan 14kW with Mixergy 210l DHW in 220m2 barn property. 24 solar panels = 9kWp with GivEnergy 5.0kW Hybrid inverter and 19kWh GivE batteries. Jaga Strada fan-assisted rads throughout. Landvac vacuum glazing/triple glazed windows.
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Latest Posts
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RE: Adding battery storage to SolarEdge PV system
That sort of thing also came up in my discussions with ...
By JamesPa , 44 minutes ago
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RE: Commencing on an ASHP Installation Process
Anitfreeze valves, or at least the ends of antifreeze v...
By JamesPa , 58 minutes ago
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@hughf, I think we’ll organise an RHH session at Instal...
By Mars , 15 hours ago
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@el3b Hi, sorry to hear that, it is advisable to instal...
By ASHP-BOBBA , 16 hours ago
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RE: Difficult positioning of air source heat pump
@rikiarn Out of intrigue, the thread reads as though Ai...
By Sheriff Fatman , 22 hours ago
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RE: Mitsubishi Ecodan Fails to Heat Water despite temperature drop
@m1kegibson If you are able to access the service me...
By HarriUp , 1 day ago
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RE: When will heat pumps and install prices come down?
... which of course is impossible because the world mov...
By JamesPa , 1 day ago
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RE: Surface mount or bury primaries for heat pump installation?
What you run the cable through will affect its current ...
By Transparent , 2 days ago
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I don't know how to enable cooling on Daikin and @major...
By JamesPa , 2 days ago
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My advice is reject unless they will delete the buffer ...
By JamesPa , 2 days ago
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RE: Battery storage to run Heat Pump.
I would be surprised if the battery chemistry is going ...
By Transparent , 2 days ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
@dowallydrifter OK. I would recommend you read t...
By JamesPa , 3 days ago
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RE: Solar to power Heat Pump for DHW
Wow, how big is your heat pump that it is pulling 6kW d...
By Old_Scientist , 3 days ago
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There are DHW tanks with a built in heat pump that take...
By JamesPa , 4 days ago
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RE: Vaillant AroTherm Plus 7kW
If the thermostat is connected to the call for heat ter...
By JamesPa , 4 days ago
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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 , 5 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...
By benson , 6 days ago