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Last seen: Aug 5, 2026
@guthrie I have a balancing act with my system because it is a bivalent set up. Oil boilers like a duty cycle of 3 cycles per hour unlike gas wh...
@toodles Yes I have noticed a more even heat distribution since installing my heat pump (12Kw Samsung Gen6). I have a particular problematic room (als...
@derek-m I wish it was! 🤣 Sadly due to the HP and controller being located within the outside boiler room, running the data cable for the built in the...
@redzer_irl From my own research over the last few weeks I would be inclined to agree with Glyn Hudson. I think for me, I incorrectly interpreted th...
@cookie197 For your information you can get slimline versions of HP tanks. I am looking at one at present as it needs to fit in the space currently oc...
@cookie197 Welcome to the forum! Reading about your decision dilemma I have been through a similar experience over the last 12 months. To echo the p...
@derek-m yes I do have an immersion heater however it is positioned at the top of the tank and would not be heating the same volume of water sadly. In...
@abernyte I did think of the oil boiler efficiency however it is a well maintained 5 year old Grant Vortex Blue flame and very efficient, so ruled 35...
@kocta Being the curious engineer that I am, I decided to do a little experiment with my metered oil boiler and heat pump and got some further questio...
@transparent yes your assumption is correct it is an Octopus tariff and the PowerUp scheme which started 14th August is an Octopus scheme trial with t...
@transparent Hope your good? Hoping the following will be of interest to you and other readersTo conclude this solar tube topic I decided for our part...
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Latest Posts
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RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
Thanks for sharing that. Your objective seems very sen...
By JamesPa , 4 hours ago
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RE: Solar Power Output – Let’s Compare Generation Figures
@toodles Very nice. Ours was the opposite, about 10%...
By Papahuhu , 6 hours ago
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RE: Adding additional Solar Panels to a DC coupled battery system
A couple more points about placing solar panels at low ...
By Transparent , 6 hours ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
@kilgorexv definitely a larger inverter will help and m...
By AndrewJ , 1 day ago
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RE: Adventures in heat loss calculations
@rob-of-york — thanks for posting this, all very useful...
By cathodeRay , 1 day 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 ...
By tomasmcguinness , 2 days ago
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RE: Glass lined Cylinder for private water supply
This has turned into a fascinating little rabbit hole. ...
By Mars , 2 days ago
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RE: Switch suitable to change between two inverter CT's
Last winter my battery ,32KWh, could run the house com...
By Jancold , 2 days ago
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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 ...
By Batpred , 2 days ago
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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 , 2 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...
By Mars , 5 days ago
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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...
By Old_Scientist , 5 days ago
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RE: Questions about A2A for heating as well as cooling
@rob-of-york I would concur with the underfloor insulat...
By Toodles , 6 days ago
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RE: New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
Nothing attached! I have rads but UFH makes the case ...
By JamesPa , 6 days ago



