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Last seen: Sep 5, 2026
It would be nice to map the flow and return pipes and get some accurate lengths. Perhaps OP can discover a convenient way to split or loop the long 15...
With a bit of persuasion, a SPICE circuit simulator will do hydraulics Assuming 5 rads, 8m pipe between rads (8m on flow and 8m on return) and 8m ...
A calibrated heat meter is an option, it is not cheap, but it is still much less expensive than choosing the wrong heat pump...
Flow rate is set by pressure created by the circulator versus resistance from pipes, valves, etc. On most heat pumps, circulator speed is adjustable, ...
Yeah that's normal Copper is expensive, and the kettle is rated for intermittent use, so they're not going to fit a plug and cable rated for constan...
One thing that bothers me with DHW from monobloc A2W heat pump is they quite often want their own cylinder, which usually comes in a big white box wit...
I have installed an EVSE. I'm French, so I have no idea about the bureaucratic red tape or special subsidies you'll get. While it is usually called ...
OK. If you had two different flow temps and were going for 2 heat pumps, I was about to suggest splitting the installation, one high temp heat pump fo...
Is the flow temperature for the rads and the underfloor heating different?
If the goal is to avoid discharging the battery during cheap electricity times, you could use the Solis scheduler (I think it's called "timed charge")
It's a current output CT (33mA output for 100A input or 1:3000) so it should never be used unloaded. It's the opposite of a battery: a battery is a ...
It depends An unloaded current transformer can output a dangerously high voltage which may cause your switch to arc over, or it can cause arcing ins...
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Degrees of Separation
Latest Posts
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RE: Where heat loss surveys seem to go against practical reality
@ian33a I recently did a heat loss calculator spreads...
By Rob of York , 2 minutes ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
@bobflux The hydraulic simulator is very interesting...
By Rob of York , 54 minutes ago
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RE: 7kW EV Charger Options Advice
Thanks. Yes, we have patchy 4G. The only option we had ...
By Rusty , 6 hours ago
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RE: Being screwed over by Volkswagen Audi Group
Thanks, @batpred. That integration is the one I have in...
By Majordennisbloodnok , 21 hours ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
@batpred I suspect it will be more this year. I had 9 ...
By AndrewJ , 21 hours ago
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RE: Surface mount or bury primaries for heat pump installation?
@jamespa It's rusting 🙂
By tomasmcguinness , 22 hours ago
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RE: Glass lined Cylinder for private water supply
Thank you, once again, for your replies. Yes...
By ian33a , 1 day ago
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It’s been out a few days and Amazon has already attache...
By Mars , 1 day ago
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RE: Missing flow temperature in Heat Geek proposal
Yes, and this is another point I agree. We did find a f...
By Batpred , 1 day ago
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RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
A very good point. In effect, the DHW pipework is an em...
By cathodeRay , 1 day ago
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RE: Solar Power Output – Let’s Compare Generation Figures
@tim441 Here are those same three month periods for 202...
By Toodles , 3 days ago
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RE: Adding additional Solar Panels to a DC coupled battery system
@transparent thank you for your reply above. As alway...
By Old_Scientist , 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 , 6 days ago
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