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Last seen: Apr 29, 2025
@william1066 Latest Manual....first page? Sorry William , what manual are you referring to here . The NEW EHS Installation manual has nothing abou...
@grahamh PWM Not Working With a blushing SAMSUNG ENGINEER avoiding eye contact ,weakly trying to defend the PWM System on SAMSUNG HEAT PUMPS and you...
@william1066 Field value 4051/2 etc Thanks William. I found , and experimented with, the 4051 setting some time ago . Unfortunately the PWM system d...
@grahamh Just found your book on Amazon.....bought it immediately. Your point about the obsession with COP to the total exclusion of efficiency i...
@william1066 PWM on SAMSUNG Heat PUMPS I have put a scope on the PWM output signal from my Control PCB but can see No Signal!......only noise. I h...
@william1066 A scope on the PWM Pins on the SAMSUNG PCB. A good idea.I will try a scope on the PWM outputs from the SAMSUNG PCB. The Grundfos mo...
@derek-m My SAMSUNG HEAT PUMP Problems..... Given I live in Scotland I have moved the Water Law Curves down to a -5 C Outside temperature with a flo...
@derek-m Weather compensation settings. My SAMSUNG HEAT PUMP has been run with Weather Compensation ( SAMSUNG WATER LAW ) since November. Weather ...
@derek-m Samsung gen 6 short cycling Missing PWM Signal from SAMSUNG. Following a recent visit by a SAMSUNG Engineer , one solution to my "short c...
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Degrees of Separation
Latest Posts
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RE: Who's your electricity provider and what's your tariff?
@papahuhu I prefer to look at it simplistically. We d...
By Old_Scientist , 1 minute ago
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RE: To re-pipe or not to re-pipe? Moving from oil boiler to air source heat pump.
Sooooo, what did we do in the end? We approached three ...
By Penval , 33 minutes ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
D'oh - of course. I shouldn't post before my brain is f...
By Old_Scientist , 6 hours ago
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RE: Questions about A2A for heating as well as cooling
@rob-of-york I would concur with the underfloor insulat...
By Toodles , 8 hours ago
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RE: New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
Nothing attached! I have rads but UFH makes the case ...
By JamesPa , 8 hours ago
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RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 9 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 , 1 day ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 1 day 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 , 2 days 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 , 3 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 , 4 days ago



