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Pool and Spa Heaters pros and cons

What are the pros and cons of an electric heat pump versus a natural gas pool heater?

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Firstly, the water volume in a pool is huge, so heating them need big amount of energy: fuels or electric, which is up to the kind of water heaters the pool owner use. Secondly, the water temperature requirement is not high:less than 30 C degree will be OK. In other words, the terminal temperature of heat pumps (if used for pools) will not be too high. These two reasons bring the application of heat pumps for swimming pools. In fact, you will say "what an ideal product designed for pools" when you know the performance of this kind of products. The COP of swimming pool heat pumps reaches 5, which means 1 electric can bring 5 heating energy. The number of traditional water heaters (broilers or electric water heaters) will not be more than 1. Nowadays, swimming pool heat pumps are popular in many Europe countries. People install them for pools of their houses. Of coures, more and more pools in gym are also heated by heat pumps. Even in aquaculture farms, heat pumps are installed for fishes, for they need stable and warm water to grow quickly.

Posted on Aug 17, 2012

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Water heating is a thermodynamic process using an energy source to heat water above its initial temperature. Typical domestic uses of hot water are for cooking, cleaning, bathing, and space heating. In industry, there are many uses about hot water heat pump .

Domestically, water is traditionally heated in vessels known as water heaters, kettles, cauldrons, pots, or coppers. These metal vessels heat a batch of water, but do not produce a continual supply of heated water at a preset temperature. Rarely, hot water will be naturally occurring, usually from natural hot springs. The temperature will vary based on the consumption rate of hot water; the water becomes cooler as flow is increased.

Appliances for providing a more-or-less constant supply of hot water are variously known as water heaters, hot water heaters, hot water tanks, boilers, heat exchangers, calorifiers, or geysers depending on whether they are heating potable or non-potable water, in domestic or industrial use, their energy source, and in which part of the world they are found.

Posted on May 31, 2012

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An electric heat pump needs heat available to pump. If it is 30 degrees outside, heating a spa to 102 or so, may be impossible unless the heater has some type of alternative heat source. A properly sized, gas fired heater can take care of a larger range of heating needs. A combination heat pump and natural gas heater, probably with a controller, really makes the issue more difficult, expensive, and would require a lot of study for efficient, cost effective operation. Bottom line: In really mild climates a heat pump might do the job. In cooler climates the gas heater rules. And where a wide range of temperatures and high heat demand is wanted by the customer, a gas heater is the only way to go. A backup heat pump may take years to payout.

Posted on Aug 27, 2008

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