OP
Danlow84
They work at full output down to -15.If anyone is interested in a free survey no obligation please feel free to inbox me
Discuss Thermo dynamics for hot water that runs off atmosphere in the Solar PV Forum | Solar Panels Forum area at ElectriciansForums.net
They work in all weather conditions.
They work at full output down to -15C.
Fast, payback period.
I have installed a few of these systems and these are the facts:
Ambient air temp - 6 deg C
Water entering temp - 8 deg C
200l of water 8 deg to 55 deg = 2 hours
amp draw = 9amps
Now i'm no mathematician, but what does this calculate into?
Steve
A miracle?
If this is true, it's very impressive technology.
Will this amazing new technology cut my gas bill in half, allowing a fantastically quick payback time on a 5K installation cost?
Or will I be left scratching my gonads when reality hits, the debt has to be repaid and the snakeoil salesman has hit the highway?
That works out at about 4.14 kWh...
That's the same as the immersion on for just under and hour and a half..
230V x 9 Amps x 2 hours = 4.14kWh (230*9*2/1000 = 4.14)
3 kW Immersion for 1.5 hours = 3*1.5 = 4.5 kWh
200l at a little under 50deg temp rise needs around 11kWh of energy input.I have installed a few of these systems and these are the facts:
Ambient air temp - 6 deg C
Water entering temp - 8 deg C
200l of water 8 deg to 55 deg = 2 hours
amp draw = 9amps
Now i'm no mathematician, but what does this calculate into?
Steve
Only one problem with all of this calculation. We do not know that the whole tank was at 8degC at the start.( a guess would say it was colder, the cylinder had been stored over night in an un-heated garage. The morning of installation was at an ambient of 0 deg C and 6 deg C at the time of commissioning) To do this you would need to run cold water through it until the outlet temperature was at this level. We do not know that the whole tank had reached 55degC. We only know that at the location of the stat the temperature is 55degC. (I measured the water temp at each tap outlet throughout the house) As a tank should stratify, it is possible that the temperature is not uniform throughout. You would need to run a de-stratification pump until the temperature was uniform throughout the cylinder to know that the entire contents were at 55degC. When you have done this, come back and tell us what the energy input to the cylinder was and what methodology was used to verify the data in a manner suitable for peer review.
Sorry to reply quoting your text..
Steve
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