Swimming pool heaters with heat pumps

With a tiny quantity of energy, anintex pool heater transports heat from one place to another. Heat is transferred from the outside into the water using heat pumps used to heat swimming pools. Less electricity is used since they just transfer heat that is already there from one location to another.

How a Pool Heat Pump Operates

The heat pump heater and filter are both engaged as the pool water is being pumped around by the pool pump. A fan mounted on the heat pump heater pulls fresh air from the outside and blows it over the evaporator coil. The evaporator coil’s liquid refrigerant absorbs heat from the surrounding atmosphere and transforms into a gas. After that, the compressor processes the warm gas in the coil. The condenser receives the extremely hot gas produced by the compressor after it has passed past the heat source. Heat is transferred from the hot gas to the cooled pool water flowing through the heater by the condenser. The intex pool heateris then reintroduced. The process starts over in the evaporator as the heated gas passes through the condenser coil and changes back to liquid form.

Instead of the reciprocating compressors found in normal models, higher efficiency heat pump pool heaters typically use scroll compressors.

As long as the outside temperature stays above the 45°–50°F range, heat pump pool heaters function effectively. They are less efficient and hence use more energy when the outside air is cooler. This is typically not a problem, though, as the majority of people utilize outdoor pools in warm and temperate climates.

How to Choose a Heat Pump Pool Heater

While costing more than gas pool heaters, heat pump pool heaters often have lower annual operating expenses due to their superior efficiency. The lifespan of heat pump pool heaters is often longer than that of gas pool heaters with adequate maintenance. As a result, over time, you’ll save more money.

You should take into account a heat pump pool heater’s size, efficiency, and price.

Pool Heater Size for a Heat Pump

To choose the right size pool heater for your particular pool, you should have a qualified pool technician complete an appropriate sizing analysis.

There are numerous considerations when sizing a heat pump pool heater. Fundamentally, the surface area of the pool and the difference between the pool and average air temperatures are used to size the heater. Additional elements including wind exposure, humidity levels, and cool nighttime temperatures also have an impact on the heating demand for outdoor pools. Because of this, pools located in regions with greater average wind speeds at the pool surface, less humidity, and cool nights will need a more powerful heater.

Use the techniques below to determine an approximate heater size for an outdoor pool:

1. Choose the pool temperature you prefer.

2. Get the typical temperature for the month that swimming pools are used the coldest.

3. Subtract the preferred pool temperature from the monthly average for the coldest month. Your body temperature will rise as a result.

4. Determine the square feet of the pool’s surface area.

5. Use the calculation below to calculate the heater’s necessary Btu/hour output:

Pool size time’s temperature rise times 12

This calculation is based on an hourly temperature rise of 1 to 1-1/4°F and an average wind speed of 3 1/2 mph at the pool surface. Add 1 for every 1-1/2oF climb. 5. Multiply by 2.0 for a 2°F rise.

Evaluation of Pool Heater Efficiency for Heat Pumps

The coefficient of performance is used to gauge how efficient heat pump pool heaters are in using energy (COP).  80°F ambient dry bulb, 63% relative humidity, and 80°F pool water are the test parameters specified by the federal test protocol for heat pump pool heaters. COPs often fall between the ranges of 3.0 and 7.0, or between 300% and 700% efficiency. This indicates that the heat pump produces 3–7 units of heat for every unit of power needed to run the compressor.

Cost and Saving Calculations for Heat Pump Pool Heaters

Use the following charts to calculate your annual heat pump pool heater costs and savings for an outdoor pool as compared to utilizing an electric resistance or a gas pool heater.

Table 1 provides annual heat pump pool heating cost estimates by location, water temperature, and whether or not a pool cover is used.

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