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Acuario
Forum:
Geothermal & Heat Pumps
12-03-17, 02:42 PM
Replies:
15
A better defrost for heatpumps
Views:
9,563
Posted By
Acuario
Thanks for the pointer. On ebay the basic version...
Thanks for the pointer. On ebay the basic version is £1.59 with free shipping - so cheap I've bought one just to see what it's like.
Forum:
Geothermal & Heat Pumps
12-03-17, 03:51 AM
Replies:
15
A better defrost for heatpumps
Views:
9,563
Posted By
Acuario
..the tests continue now it's winter.. So...
..the tests continue now it's winter..
So far sadly not too good. The tests I did initially were using plastic bags to restrict the airflow and then I was getting good results. Now I've had a few...
Forum:
Geothermal & Heat Pumps
04-16-17, 05:03 AM
Replies:
15
A better defrost for heatpumps
Views:
9,563
Posted By
Acuario
I've now built the pressure difference...
I've now built the pressure difference measurement sensors into the machine.
One sensor is enclosed in a sealed box (ex screws!) with a tube going from the box to the back of the fan. The box is...
Forum:
Geothermal & Heat Pumps
04-15-17, 05:27 AM
Replies:
15
A better defrost for heatpumps
Views:
9,563
Posted By
Acuario
Well I finally found time to do a bit of very...
Well I finally found time to do a bit of very provisional testing using BME and BMP pressure sensors.
It looks like it is going to work as there is a measurable pressure difference when the...
Forum:
Geothermal & Heat Pumps
01-26-17, 05:56 AM
Replies:
15
A better defrost for heatpumps
Views:
9,563
Posted By
Acuario
A better defrost for heatpumps
I was looking around to find out if there was a better way to do defrosting than my current method (which is very basic, if the return temperature is less than X for however long then defrost).
I...
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