Last seen: Mar 9, 2025
Looks like this issue is now resolved. Aira installed a K3 radiator, with 20% more output, and now the temperature is holding steady around 19.5 degre...
I would look at it as £9.5K vs £11.5K or £15.5K instead of £2K vs £4K or £8K after excluding the BUS grant. Psychologically, that feels easier to comp...
February.stats are now in. This was our first full month with an ASHP, so I was really looking forward to the results. To set the context, this Februa...
@callum_62 That does sound excessive. We are in a slightly older new build, around 12 years old, 4 beds (and a study) and three reception rooms includ...
@njt Same here. We have 6.9 solar and a 6.5 kWh Growatt battery. Since, I switched to cosy after the heat pump install, we fill up the battery thrice ...
@vsmith1 We switched from an EV tariff to cosy tariff after the heat pump installation. We run hot water twice a day during the cheap period, one hour...
@vsmith1 I too took saw that today. Pretty chuffed with heating CoP of 4.2 and hot water CoP of 3. Especially, when the weather was particularly cold.
@broadsman That's a good shout. I can't see the flow data, but can see input power and delivered heat by hour. Also, can track input electricity on th...
Really interesting thread, thanks for the insights everyone. We recently had an Aira heat pump installed, and straightaway I realised that we need t...
@andrewj Earlier with the gas boiler and Tado TRVs controlling the temperature, I used to think 18 is the right temperature. As otherwise the room use...
@mikeh It's running on an off peak schedule now. To be honest, I don't see a drop in COP. There was only 10 minutes of hot water left yesterday night,...
@mikeh I thought so too, the efficiency can't be that bad if you run the hot water once at night. Yes, maybe when you have visitors and during Christm...
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Latest Posts
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SolarPV tables / online calculator
Is there some table or an online calculator that I can ...
By MichelleC , 2 hours ago
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RE: Newbie out of her depth – Samsung AE120RXYDEG 12kW heat pump
Same here @jamespa - we have a 12kW Samsung ASHP, solar...
By Old_Scientist , 5 hours ago
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RE: Samsung Gen 7 R290 12kW is not behaving how I expected
Yes, that sounds correct. I would say try both options...
By Old_Scientist , 5 hours ago
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RE: F.788 Building circuit pump reports internal fault - Vaillant Arotherm
Guess I have to wait for engineer visit. I really hope ...
By jeegnesh , 6 hours ago
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RE: Setback savings - fact or fiction?
The great thing about science is that it doesn't care o...
By JamesPa , 7 hours ago
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RE: Act now to defer the UK road tax increase on EVs
@majordennisbloodnok Damn right sir. my attempt at iron...
By Jancold , 9 hours ago
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RE: ASHP and heating issues in new build house
That’s good gives you more capacity. It made me think, ...
By Terry1812 , 11 hours ago
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RE: Seewet manhole cover within r290 exclusion zone
Thanks! I asked Vaillant, and they say I should be fi...
By dbrb2 , 13 hours ago
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Looking for the Grant Aerona 3 setting to turn off completely at 20 OAT
I'm running my Aerona 3 on WC and the 'warm end of that...
By damonc , 14 hours ago
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RE: Do I just go with the lowest quote for my heat pump?
So after signing in Sept in two weeks the install may s...
By Jancold , 15 hours ago
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RE: Victorian Semi Retrofit / Extension ASHP and UFH Advice
When you are renovating is always a good time, as it ma...
By JamesPa , 18 hours ago
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RE: Just one room not reaching desired temperature
Looks like this issue is now resolved. Aira installed a...
By ChandyKris , 19 hours ago
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There have been several people on the OpenEnergyMonitor...
By RobS , 1 day ago
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RE: Say hello and introduce yourself
Good point @jamespa But that probably strengthens @ch...
By Transparent , 1 day ago
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RE: Towel rails. An unexpected final hurdle
@jamespa Beware; the use of the term ‘WC’ might lead to...
By Toodles , 1 day ago
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RE: Visit a Heat Pump sessions.
Congratulations @toodles, that's a fantastic result. We...
By Old_Scientist , 1 day ago
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RE: Baxi Air Source Heat Pump tips and tricks please
@cathyem1 - thanks for the update. Let us know how it g...
By cathodeRay , 2 days ago
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RE: Low COP and unevenly heated rooms with 12kW Samsung AE120MXTPEH / AE260TNWTEH
@editor But do you wear your peaked cap the right way r...
By Toodles , 2 days ago
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RE: Who's your electricity provider and what's your tariff?
I’d be interested to hear the feedback and consensus on...
By Mars , 2 days ago
Latest Topics
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SolarPV tables / online calculator
By MichelleC 2 hours ago
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Samsung Gen 7 R290 12kW is not behaving how I expected
By Joshua 14 hours ago
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Newbie out of her depth – Samsung AE120RXYDEG 12kW heat pump
By BAMi 17 hours ago
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By Toodles 1 day ago
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Solid manhole cover within r290 exclusion zone
By dbrb2 2 days ago
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Towel rails. An unexpected final hurdle
By Davesoa 2 days ago
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By big_si 2 days ago