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AquaCal ® has been the leading swimming pool heat pump manufacturer since 1981, offering a full range of units to meet any heating need. AquaCal ® …See more
What is the difference between an air source heat pump and a geothermal or water source heater?
A:
An air source unit draws free heat from the outside air and is most efficient in warmer climates. Its operating range is generally temperatures that average 50°F or warmer...
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