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Last seen: Apr 29, 2025
@iancalderbank hi ian DS18B20 I have , at the moment , several DS18B20 's attached to the Heat Pump. These are excellent , but, no re...
@derek-m What do you think of this plumbing software. Allegedly calculates Pressure drops , Temperatures , losses from a AutoCAD style fro...
@derek-m Yes Derek, I agree with you .......... I should have Designed my Heat Pump myself. External pipe Temperature Sensors? The Only af...
@fazel fazel, I am green with envy. If only I could get Six cycles per day ! I have a system that was NOT designed , but , chosen becau...
@derek-m Many Thanks Derek. My Water Law settings are : The Water Law Graph is defined by several bits in the Samsung Controller memory. ...
@derek-m Thanks, Derek An Excellent display of Simple clear Technical writing . Can you define "Short Cycling"? Is this short Cycling , a...
@jamespa Excellent clear Technical writing James! I accept, reluctantly , that a whole system model is impractical. My immediate problem is...
@derek-m Cycle Period ? What is your current "Cycle Period "? Currently my own cycle period is 10.5 minutes with up to 110 cycles per day i...
@jamespa Thanks James, I was not aware that the result of the Water friction was to reduce the pressure drop , not the Temperature. At le...
@derek-m Yes, I now appreciate that I was misinformed by the Frenchman. However, my "intuition" still insists that the pipe Friction loss wil...
@jamespa Temperature Drop and flow rate Again, James you are probably correct. However, my "intuition" is still basically that of an Electr...
@jamespa Am I Sure of Temperatures ? No, I am sure of nothing! The Water Temperatures are measured , in the main , by Chinese K Type senso...
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Degrees of Separation
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 , 3 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 , 5 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 , 8 hours ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 8 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 , 9 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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