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Last seen: Sep 19, 2024
I think that it was over 1 year ago when I suggested a method, primarily to improve overall efficiency, but in the process it may help reduce defrost ...
Was your system actually cycling or defrosting?
@rgledhill What are the on - off periods when it is cycling?
@rgledhill Adding a larger volumiser is not the same as having all the radiator valves fully open, because once it is up to temperature the heat los...
I can only state what my friend told me. He is a trained Electrical Engineer who has been with NG HV transmission systems for many years and is now in...
At a New Years Eve shindig, I was talking with my friend who actually works within National Grid (NG). He was telling me how NG's middle and higher ...
It merely means that the flowrates in the primary and secondary circuits can be different.
@davidalgarve Happy New Year. One possible way to reduce the flow rate in the secondary circuit would be to throttle in one of the isolation valve...
Converting your system by changing the function from a buffer tank to a volumiser is not such a major task, that any competent plumber should be able ...
@jamespa I would agree with your statement James. If the water from the heat pump is flowing into the buffer tank at a slightly higher flowrate th...
The cable should be connected to THW1 - Flow Water Temperature Thermistor and THW2 - Return Water Temperature Thermistor. To get your system operati...
This is a good example of the 'buffer tank effect', in that your heat pump is warming the water to 35C, when without the buffer tank it would only nee...
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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 , 18 hours 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 , 18 hours 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 , 23 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 , 1 day 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 , 1 day ago
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RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 1 day 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 , 2 days ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 2 days 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 , 3 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 , 3 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 , 4 days ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 4 days ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 4 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 , 5 days ago



