Heating Water with Cold Water
Apr-07-13
A San Diego inventor has developed a way to heat a home’s hot water by using the excess heat from cold water. Most homes use three to four times as much cold water as warm water, with the temperature of the cold water averaging over 70ºF throughout the year—about 15º to 20ºF degrees warmer than necessary. To take advantage of this extra heat, the prototype system uses a small water-to-water heat pump to extract the excess heat and deliver it to a conventional 50-gallon water heater.
In real-world tests, the device was able to improve water heating efficiency by up to 50 percent over conventional heaters. Slater has patented his device, and is now seeking funds and a manufacturer.
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[GIZMAG.COM][HAL SLATER]
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This is such a simple concept, and a great design! I hope this system is incorporated into every home within the next 5 years! It's only foreseeable downfall is for areas where the cold is not hotter than necessary. I wonder if this system could be adapted to produce energy when the water is too cold? Hmm.
Posted by Sir Ben Raftery on April 8, 2013
Sir Ben, thank you for your enthusiastic support. Since I am exploiting the available 'sensible' energy in incoming water, if that energy is not there, there is nothing to exploit. This water heater is for warmer climates (tropical, desert, temperate). It makes great sense in San Diego where I live.
Posted by Hal Slater on April 10, 2013
what a genius
Posted by karine sobh on April 12, 2013
Please contact me to discuss possible partnership agreement.
Posted by andrew barakett on July 7, 2013
Well done! This will work!
Posted by Albert van Niekerk on August 14, 2013
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Comments
This is such a simple concept, and a great design! I hope this system is incorporated into every home within the next 5 years! It's only foreseeable downfall is for areas where the cold is not hotter than necessary. I wonder if this system could be adapted to produce energy when the water is too cold? Hmm.
Posted by Sir Ben Raftery on April 8, 2013
Sir Ben, thank you for your enthusiastic support. Since I am exploiting the available 'sensible' energy in incoming water, if that energy is not there, there is nothing to exploit. This water heater is for warmer climates (tropical, desert, temperate). It makes great sense in San Diego where I live.
Posted by Hal Slater on April 10, 2013
what a genius
Posted by karine sobh on April 12, 2013
Please contact me to discuss possible partnership agreement.
Posted by andrew barakett on July 7, 2013
Well done! This will work!
Posted by Albert van Niekerk on August 14, 2013
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