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Last seen: Mar 23, 2026
@cmartinbwmba - this might be useful background knowledge. I had a software/firmware upgrade last week. This caused two issues. Firstly it erased all ...
Sorry no. There’s a reference at 5.8.9 in the manual to auto mode set under commissioning but as it’s part of the ‘Serviceman’ I haven’t bothered with...
As someone running the same unit (but in the south Midlands) and with a Halo Lite my average weekly electricity bill this month is £63 and falling as ...
Great. It’s not bad is it, though I agree it may represent a deal with the devil over data (but then most of us use Google). If you want it on other d...
Sorry forgot about the three choices. It’s the 2nd one you need. Start with the WLAN settings on the control box and set it running as per my guide, s...
You don’t need a Halo, it’s entirely independent of it. Works over the house WiFi and remotely. Download the app and follow the instruction...
There is a third party app called iLetComfort available on the App Store which shows some basic data, CoP, flow temp etc etc. You can mak...
@jamespa I wasn’t offended at all. You are very knowledgeable and I’ve used your advice a number of times to get my system where it is (often when rea...
@jamespa your opinions are always welcome and informed. In my case empiricism has shown I can achieve 20% savings over my previous utility costs and b...
just looked at the HP290 manual. Weather compensation- the manual states “do not change this setting from standard for optimum appliance operation....
And here is an Ideal HP290 14Kw user. Mine was installed in May 2025 so this is my 1st winter. I have a 180m2, 4 bedroom house of hybrid construction ...
I chose Tesco in the end. Unambiguously cover HP, PV and batteries. Which recommend their level of cover as well.
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Latest Posts
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RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
The Vitotronic 200 WO1C control unit manual can be down...
By jon , 11 hours ago
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RE: Glass lined Cylinder for private water supply
I have one of those... a Thermal Store. In my case th...
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RE: 7kW EV Charger Options Advice
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RE: Solar Power Output – Let’s Compare Generation Figures
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RE: Adding additional Solar Panels to a DC coupled battery system
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By Old_Scientist , 2 days ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
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By AndrewJ , 4 days ago
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RE: Adventures in heat loss calculations
@rob-of-york — thanks for posting this, all very useful...
By cathodeRay , 4 days ago
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RE: Surface mount or bury primaries for heat pump installation?
The installation is almost done! I've written up two ...
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RE: Switch suitable to change between two inverter CT's
Last winter my battery ,32KWh, could run the house com...
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Agree with Major. And even if I was very happy with ...
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RE: Is the "divide by 2900" rule still valid?
There is another estimator that you could use, a formul...
By Rob of York , 5 days ago
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RE: To re-pipe or not to re-pipe? Moving from oil boiler to air source heat pump.
@penval, really useful update. After all the discussion...
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RE: Who's your electricity provider and what's your tariff?
@papahuhu I prefer to look at it simplistically. We d...
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