Last seen: Oct 20, 2025
@bobtskutter Hi Bob. Daft mistake with the valve. The red expansion tank is not attached to the hot water cylinder. I can't find the PSV you menti...
@bobtskutter Thanks. Pressure remains steady at 1.2 with the system idling after House Heating. No idea what's trigering the drop in pressure. I h...
@bobtskutter Hi Bob. Installer asked me to check the pressure relief valve on the top of the Red Expansion tank. Only air came out; pressure was 1.5 a...
@bobtskutter Thanks. Chasing up my installer.
@bobtskutter So, just to be sure I understand, it shouldn't drop to zero when the heat pump is idling? In heating mode, it seems to be staying on or...
@bontwoody Thanks. I did top it up a few days ago and that's what made me look at it today. If the pressure is gradually rising to 1.9 when the pump...
@toodles Just to close this track, my installer was happy with the pump speed adjustments. Primary Grundfos Pump on speed setting 1 and Secondary Wilo...
@transparent Thank you for your comments. I have insulated my loft Automatic air valves and brass connections by wraping in Topsleeve Sheep wool pip...
@johnr @transparent Thank you for your suggestions. Yesterday I found out that the Air Valves are in fact automatic so I have to be a bit more caref...
@allyfish Many thanks for your reply. I was afraid I am getting too fussy although my installer may still think so! I am surprised that there are no...
Latest Posts
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RE: Electricity price predictions
It's not just the transatlantic ones either,but also th...
By Transparent , 13 minutes ago
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RE: Help me keep the faith with my air source heat pump installation
@agentgeorge Ah! Thanks very much - one lives and learn...
By Toodles , 24 minutes ago
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RE: Ripped Off: How UK Homeowners Are Paying Gas Prices for Wind Energy
It is a crazy situation. It also seems not enough 400kv...
By Batpred , 34 minutes ago
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So following on from my new Mixergy cylinder replacemen...
By bontwoody , 1 hour ago
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RE: Samsung Heat Pump – Can't Activate TW2 Pipe Sensor (for Delta T Control)
Zigbee seems stable but not every manufacturer's ZigBee...
By Batpred , 2 hours ago
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RE: Rate the quality of your heat pump design and installation
More like Octopus wanted to fit a Cosy 6 at the end of ...
By bimbleuk , 3 hours ago
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So my plans when installing the 8kw solis and 16kwh sep...
By Batpred , 11 hours ago
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RE: Options on flushing my system
@editor Yeah I watched the episode and am probably goin...
By Grantmethestrength , 13 hours ago
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RE: Daikin Octopus installation update - I saw my first defrost. 😍😂
@toodles Useful reply and because Heat Geek mentioned i...
By bimbleuk , 17 hours ago
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RE: How good is the app support for your heat pump?
Yes. Personally I would only use a heating control app ...
By Batpred , 17 hours ago
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RE: Replacing knackered oil boiler with Samsung ASHP - Perthshire
The Legionella disinfection is done by the immersion he...
By Mike H , 18 hours ago
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RE: Renewables & Heat Pumps in the News
@transparent Yup, should have been better to say, wh...
By Batpred , 18 hours ago
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RE: Forum updates, announcements & issues
@editor Hardly worth taking up the memory space for a p...
By Toodles , 19 hours ago
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RE: How to add a new topic to the forums & unsubscribe from forum email notifications
@old_scientist, that doesn't exist presently... I will ...
By Mars , 20 hours ago
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When will fusion be producing energy?
We got on a sidetrack elsewhere but best to create it h...
By Batpred , 20 hours ago
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RE: Rodents! A word of warning for heat pump owners
Useful and timely reminder!
By Tim441 , 21 hours ago
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RE: Renewable Heating Hub Homeowners' Q&A Podcast
@lucia, I appreciate the feedback, and we’ve received a...
By Mars , 1 day ago
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RE: Grant 13kW Aerona3 - issues getting zones to temp
I hope out of all of this that I can run the system at ...
By Crimson , 1 day ago
