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Last seen: Sep 10, 2026
@ronin92 - I do have a multi-meter with a thermometer scale using a thermocouple to take the readings. Putting that inside the insulation foam pipe wr...
@ronin92 - these temps are not easy to measure accurately. The clip on thermometers are typically +/- 5 degrees so not discriminating enough. I use a ...
@derek-m - Thank you for the detailed explanation of the principles behind how a PHE works. That is indeed my understanding of the principles, though ...
@derek-m - yes, we did, but didn't get to the bottom of it, largely because there weren't cold enough ambients to test the system. @kev-m - I agree ...
@kev-m - that's interesting, and makes sense, and fits with what I observed about the power reading in the Midea controller, around 5kW when it was on...
@editor - useful images. Using my rather more basic IR thermometer I continue to have a roughly 5 degree difference between the top and bottom of most...
My flow temp is 34 deg now and my kitchen rad is definitely cooler on the bottom (with my uncalibrated but able to register differences quite well, ha...
@editor - these stats are always fascinating. Or perhaps I should get out more often. A couple of quotes: "Since applications for grants opened for ...
Very informative. Unfortunately I was tied to using a Midea unit, by virtue of it being baked into the planning and listed building consents. The Mide...
Indeed it is, but it is currently summer, so no need for 16kW, plus I am wary of voiding my warranty because I have tinkered with the settings, hence ...
@derek-m - thanks for posting this spreadsheet again, it is worthy of many postings! Total Heating Elements output (at delta t 50, ie fossil fuel delt...
It's a long story, spread out over many months, and covered in some detail in earlier posts in this thread. In summary, it was specified by my install...
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