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Last seen: Nov 3, 2025
@robertoi PV on its own can be massively beneficial. Tied in with a battery and it can be even better. Last year with generation and energy savings I ...
@rusty I can 100% tell you they have all of those features and I would never expect to see that kind of draw unless incredibly exceptional circumstanc...
@rusty any power company will look at peak amps when sizing a system. If you have 100amps on single phase, you have 24kw to play with. 18kw taken up f...
@robertoi There is a calculator in my signature which is from Freedom heatpumps. Have a crack at that and you should get a better idea of your costs. ...
@robertoi where you live will make a big difference. I live down on the south coast and I am averaging a COP for heating and hot water of 3 with radia...
@sand I would suggest you just use the TRVs in the bedrooms and set them to 2 or 3, whatever is most comfortable for you.
@heat-pump-newbie the heat pump gives it to me a statistic along side power use, heat delivered etc. I assume its just the average temperature across ...
No bills yet - apparently I'll get December and January together, lovely. The below might be of interest to people. The ambient is the 24hr average as...
@mattengineer not for the DIY ones. However I assume it's pretty similar given the weight. $350 per unit and 2-4 weeks in shipping. Could be more now
@prjohn you can get 6.9kwh for $1900 USD before volume discount from Seplos. The trick is to get the unit number up. If you order 12 or more it's basi...
@heat-pump-newbie I've got pylontech 3000s and 2000s. You can find them easily enough on eBay if you want up to date prices. However for my next batte...
@mattengineer 80% dod preserves the battery, so you'll see it recommended a lot of places. Honestly I don't have any issues with my Sofar pylontech se...
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Degrees of Separation
Latest Posts
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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 , 14 hours ago
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RE: To re-pipe or not to re-pipe? Moving from oil boiler to air source heat pump.
Sooooo, what did we do in the end? We approached three ...
By Penval , 14 hours ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
D'oh - of course. I shouldn't post before my brain is f...
By Old_Scientist , 19 hours 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 , 21 hours 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 , 21 hours ago
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RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 22 hours ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Thank you, I’m thinking along these same l...
By Toodles , 2 days ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 2 days ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
By Mars , 2 days ago
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RE: Plug and play solar. Thoughts?
My thought is simple. Bring it on and bring on plug in...
By JamesPa , 3 days ago
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RE: Heat Geek mini store vs pump size
Yes I agree, that’s why Heat Geek have most likely sele...
By Tomtheheatingengineer , 3 days ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 4 days ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 4 days ago
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RE: Is the "divide by 2900" rule still valid?
Really flow rate is a pipework limitation not a water p...
By JamesPa , 5 days ago



