Last seen: Dec 6, 2025
@iancalderbank as R290 is based on propane (not containing fluorine) I would think that the f-gas regs wouldn't apply.
@iantelescope I believe the short cycling problem would be rectified by increasing the hysteresis value for the RWT sensor. What is the current settin...
@transparent You could well be right. Current salary for a refrigeration engineer is in the region of £40k per annum ( £20/hr.) Cost of training tools...
@delt I liked to make a stab at this, so some of the things to consider: engineers travel time to site, say 1 hour @ 65/hr engineers travel time...
Additional info on pull down end of line reistors: To eliminate the presence of reflections from the end of the cable, it must be terminated at both...
@cathodeRay, Would I be right in thinking that your hourly COP value calculation includes periods (minutes) when the compressor is not running? Or mo...
@ cathodeRay I could see how the instantaneous COP value could be in the order of 11.6, but I can't see how that could be the average over an hour due...
@batalto was your boiler located in the middle of your garden, or in your kitchen, utility room or loft. Your missing my point, whatever the boiler ef...
You suggested a figure of 80% for the efficiency of you oil boiler for converting the fuel to hot water, where does the other 20% of the energy goes, ...
One question if I may, where was your old oil boiler located; within you home or in an outbuilding?
Latest Posts
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RE: LiFePO4 lithium battery fires and explosions
That's somewhat of an understatement. 🤨 The ...
By Transparent , 1 hour ago
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RE: Help me keep the faith with my air source heat pump installation
@simonf thats interesting as I’ve noticed my flow and r...
By AdamK , 3 hours ago
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RE: MELcloud scheduling misbehaviour
No, it gets to set temperature easily even during perio...
By Abernyte , 4 hours ago
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RE: Setback savings - fact or fiction?
@robs — is there anything weird in your post or footer/...
By cathodeRay , 4 hours ago
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RE: Free Ecoheat Heat Pump Install
Sorry hit 'add reply' too early, this forum layout will...
By Deltona , 5 hours ago
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RE: Poll for Time of Use, tariffs, technology
@batpred Fair enough, if the usage of these materials i...
By Papahuhu , 5 hours ago
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And arguably even more important, sodium will be hopefu...
By Batpred , 8 hours ago
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RE: A Smarter Smart Controller from Homely?
I've been thinking of emailing Homely to ask for a few ...
By JohnnyB , 20 hours ago
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Max output of Heat pump (Daikin 4Kw EDLA04)
Hello, I am a bit puzzled that according to pcdb tes...
By GeorgeA , 20 hours ago
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In that case, @technogeek, I’d sign up for the free sol...
By Majordennisbloodnok , 21 hours ago
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RE: Has Anyone Else Noticed a Decline in Tradesmanship?
@cathoderay Hence my rider about ‘all else being equal’...
By Toodles , 22 hours ago
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RE: Heat Pump Performance Analysis Web App using Modbus Data
@redzer_irl — all my heat pump data is in csv files, me...
By cathodeRay , 22 hours ago
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That’s not a problem. If you can hit the main landing p...
By Majordennisbloodnok , 22 hours ago
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RE: Configuration issues with 10kW Midea R32 heat pump
@benson I believe there are quite a few of these instal...
By Toodles , 22 hours ago
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RE: 10kw heat pump run in 24*7 data?
I would say you most likely do need 10kW. My gas consu...
By JamesPa , 23 hours ago
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RE: Mitsubishi Ecodan 11kw Defrosting Issue.
@thundermink I managed to find the fault. I did it a lo...
By meehow , 24 hours ago
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RE: Here is my heat pump installation with questionable COP in Italy
Well in Italy there is nothing controlling the quality ...
By materox345 , 1 day ago
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RE: What a Bad Heat Pump Installation Looks Like
@editor The trick to an inside unit installation is to ...
By MikeFl , 2 days ago
