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Last seen: Jun 26, 2026
Same with the Grant pre-plumbed cylinder and digital thermostat. My 250L tank shows all manner of random temperatures after drawing hot water. I think...
Does the Hive also control and program your DHW? My installer fitted a Grant time clock for that. My Hive room thermostat is only for heating. The H...
You're consuming significantly less kWh per day after the cold snap with the WC enabled than you were before at comparable outdoor temperatures. So th...
Some of the A2W ASHPs also can cool in summer. Most can, they are all reversible circuit heat pumps. But for MCS and 'renewable' restrictions in the U...
Hello @Curlykatie, How much hot water do you get through as a family? 300L is decent sized cylinder, charging for 1hr a day should be plenty assumin...
Well, if ASHPs are an expensive folly, I'm a fool. Currently I'm requiring about 86kWh a day for heating 3/4 floor area of the house and daily hot w...
@andehh the Samsung EHS Mono HT has a more complicated refrigeration system with intercoolers to stop the refrigeration circuit cooking itself for hig...
@soniks this is good news. I'm going to contact Grant regarding why my weather compensation was not enabled, as you point out, it's clearly stated as ...
Hi Jeff. Solar PV panels are now £0.50 per watt, electricity cost is only going in one direction, so max out all available roof space. Exporting power...
@soniks use the default Grant settings as a start. Have you found out why your ASHP is cycling on and off and what is causing it? That's a separate is...
@soniks it's exactly as per @derek-m comment. Something is switching your ASHP on and off 2 or 3 times an hour. Because of that your flow temperature ...
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Latest Posts
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RE: How Accurate Is My DIY Heat Loss Calculation?
@editor Thanks Mars, I have been enjoying playing with ...
By kilgorexv , 6 hours ago
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New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
I am feeling baffled and worried:We are having a an Aro...
By GutoFfowc , 8 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 , 11 hours ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 11 hours ago
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RE: Questions about A2A for heating as well as cooling
@donciccio I would suggest that you take a "fabric-fi...
By Rob of York , 12 hours 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 , 1 day 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 , 2 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 , 2 days ago
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RE: Who's your electricity provider and what's your tariff?
@chandykris Swings and Roundabouts, you win some…. ...
By Toodles , 2 days ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 3 days ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 3 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 , 3 days ago
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RE: The good, the bad and the not that great – my heat pump installation
@burtis, I’ve followed this thread pretty much from the...
By Mars , 6 days ago
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