Last seen: Nov 13, 2025
Don't mistake designed flow rates (which fixed speed pumps need to be set to to obtain maximum input when required) with variable flow rates that heat...
The Grant engineer has given you the correct information. If you let the water stop completely each time the compressor stops, consider what happens...
VRG131 is just a popular valve and can be adapted to any size using fittings. The pump can be chosen based on the pressure loss. What will be in con...
Exactly what I said in the video, and that is one of the worst AAVs in the market, so they can expect leaks in the future.
Having joined the Aira owners group on Facebook (for some heat pump research I am part of), they have completely locked the system down. I’m also susp...
Oh I do a good pirate accent alright... 🏴☠️😂👍 I'm sorry i've disspaointed on the previous occasion... B...
Click the link below (PDF download) and have a look at this diagram.../p> It shows how the system should have been wired and very basic settings. Yo...
So, you actually have two pumps, not one. @old_scientist is going in the right direction with you. If you run out of ideas I'm here in the background....
Not stepping on my toes at all. I've just done 6 weeks of research at Energy House 1 on Samsungs, so I could have asked for the FSV's but wanted to se...
Always need the full picture before making a descision... Otherwise we are just guessing! 😎👍
Latest Posts
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RE: Replacing my 18 month old Hitachi Yutaki ASHP
Setback is in the user menu - time clock/schedule or si...
By JamesPa , 3 minutes ago
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RE: Electricity price predictions
Well let's start by telling you that since I wrote that...
By Transparent , 26 minutes ago
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RE: British Gas vs Octopus Energy vs Heat Geek vs EDF vs Aira
The initial Aira appointment, certainly in my case when...
By Sheriff Fatman , 1 hour ago
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RE: Trying to understand my Nibe F1245
@greenlight Many thanks for the information, it's set m...
By Chris12 , 2 hours ago
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This is what I answered, I really have no hope: "......
By Batpred , 16 hours ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
@andrewj oh yes they offer Daikin 8kW, they tried to fo...
By AgentGeorge , 18 hours ago
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RE: Solis S6-EH1P8K-L-PLUS – Why I Chose It and What I’ve Learned So Far
@majordennisbloodnok Good point! Just in case anyone re...
By Batpred , 18 hours ago
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RE: Hitachi Yutaki SCombi Heat Pump - Owners
@sim0n0 It would be very useful if you could tell us...
By trebor12345 , 18 hours ago
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RE: Benefits of an extra horizontal loop for GSHP
A correct sized collector is all you need. Saying this,...
By greenlight , 20 hours ago
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RE: Grant Aerona Short Cycling
@mikefl, thanks for sharing your operating data, very i...
By Steam Powered , 21 hours ago
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@f1p, sorted, on a android phone Just swaped from ...
By @sand , 1 day ago
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RE: Here is my heat pump installation with questionable COP in Italy
@jamespa Sorry for the late reply, I apologize for the ...
By materox345 , 1 day ago
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RE: A2A vs A2W: Which Heat Pump Would You Pick?
@editor Yes BUT that was 3 years ago installed in Janua...
By rob heatpump bob , 2 days ago
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Thanks for your response. I have UFH downstairs and ...
By GeorgeA , 2 days ago
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RE: Home energy storage & battery register
2 days uninterruptible power supply (at the moment) wit...
By Batpred , 2 days ago
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We have a Vaillant aerotherm with sensocomfort. We have...
By Newbie , 2 days ago
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@trebor12345 Yes, expect defrost cycles to initiate at ...
By IaAck , 2 days ago
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I would probably have them in white as that would match...
By Grantmethestrength , 2 days ago
