Inverter pool heat pumps utilize heat from the atmosphere to heat your swimming pool and maintain the ideal temperature over time. It extends your swimming season, lowers your annual operating costs, and reduces your carbon footprint. Having a reliable inverter pool heat pump is essential. However, there are many swimming pool heat pump suppliers, and how do you know what kind of pool heater you need? Thus, we have compiled this pool heat pump buying guide to help you make your purchase decision easier.
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When choosing the best pool heat pump for your swimming pool, you should always consider the following five things: size, energy efficiency, noise level, operating temperature range, and user-friendliness.
Typically, the larger your pool, the bigger the heat pump you need. While smaller pools require smaller heat pumps, a larger heat pump running at half speed is more energy-efficient than a smaller one running in high gear. For more advice on sizing, please read Pool Heat Pump Sizing Guide: How to Choose Pool Heat Pump in The Right Size.
We generally use COP (coefficient of performance) to measure the energy efficiency of a pool heat pump, which is usually a calculation derived from controlled tests on the pool heater in different conditions and humidity levels. COP provides a reliable prediction of how much heat you will receive and the cost to produce it.
In the case of a pool heat pump, a COP of 6.0 indicates that it generates 6kW of heat for every 1kW of energy it consumes. In general, the higher the COP, the more energy-efficient the heat pump is and the lower your monthly energy bill will be. The inverter technology can intelligently adjust the heating capacity and increase the energy efficiency to a higher level. Therefore, we should choose an inverter heat pump pool with a higher COP as much as possible to achieve optimal efficiency and minimal energy cost.
Some heat pumps make a lot of noise. If you want a quiet swimming environment or need to place your heat pump close to your neighbors, pick a model that runs more quietly. The piping and airflow system, motor, and compressor are usually the three main factors that affect the noise level of a pool heat pump. But a pool heat pump with an inverter eliminates all of these concerns.
Inverter technology allows heat pumps to keep the pool at a constant temperature at a low speed, so it is less noisy. Thus, we can choose a silent inverter pool heat pump to quietly heat the pool and maintain a peaceful environment.
Not all heat pumps are capable of heating pool water at lower temperatures. The heat pump’s ability to generate heat will decrease as the air becomes colder. Therefore, to determine the most appropriate heating power for the most effective results, it is crucial to buy a pool heat pump depending on the local climate. Most heat pumps will shut down when the outside temperature drops below 13 degrees Celsius.
However, inverter pool heater pumps have a much broader operating temperature range. Some swimming pool heat pump manufacturers offer heat pumps that can continue to operate below zero degrees Celsius. Hence, when selecting a pool heat pump, you can refer to its operating temperature range for judgment.
Ideally, you should be able to easily adjust or set the target temperature of your pool with the push of a button. An inverter swimming pool heat pump with a user-friendly control panel will do the trick and more. Just install an app on your mobile device, such as a smartphone, and you can remotely start your pool heat pump, control the temperature and set the timer. When you get home, you can immediately dive into the pool instead of waiting in vain for the pool water to warm up, saving you a lot of time and hassle.
Inverter pool heat pumps are the best option for heating swimming pools and are the type of pool heat pump you should purchase. With the rapid development of inverter technology in recent years, more innovative pool inverter heat pumps are gaining acclaim in the market. The Mr. Perfect InverPad® Turbo pool heat pump from Aquark is one of the best.
The InverPad® Turbo is an innovative and unique patent owned by Aquark, a pool heat pump manufacturer in China. For the first time in the pool industry, it utilizes the most advanced silent technology in Turbofan, combining aerodynamic optimization and the best noise reduction technologies to achieve zero mechanical noise and reduce sound level to 38.4 dB(A), which is 20 times quieter than traditional on/off pool heat pumps.
Mr. Perfect offers exceptional heating efficiency with a COP of up to 16.0, a 69% increase in savings over conventional on/off pool heat pumps, thanks to its self-developed inverter control system.
Furthermore, Turbofan’s new airflow system increases the heat exchange area and maximizes the heat output to guarantee an excellent performance under cold weather. Mr. Perfect heats up as scheduled when the outdoor temperature is as low as -15 degrees Celsius, maintaining 50% of the heating output in harsh conditions.
With the self-developed smart app InverGo and built-in Wi-Fi, you can easily control your Mr. Perfect from your anytime. InverPad® Turbo technology makes it possible to heat your pool silently and efficiently, so you can enjoy swimming all year round.
Below is a table we have compiled to help you better understand how well this inverter heat pump for swimming pool performs.
A heat pump is a device that uses a small amount of energy to move heat from one location to another. Heat pumps used for heating pools transfer heat from the outdoors into the water. Unlike gas heaters that require natural gas or propane, they use heat that is already available and just move it from one place to another, thereby using a cleaner heat via electricity, producing no carbon monoxide.
Heat pumps are perfect for use in warmer climates! Heat pumps are most efficient when they’re heating outdoor air that’s above 50 degrees Fahrenheit. Anything below 50 and a heat pump does start to lose efficiency. In fact, heat pumps work more efficiently the warmer the air temperature gets.
If you want to save on your energy bill, heat pumps provide great value.
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Think of a gas heater as a muscle car and a heat pump as a bike. A gas heater will definitely heat your pool faster, but you’ll pay a price for it when the energy bill comes. On the other hand, a heat pump will provide an even and consistent heat once it reaches your ideal temperature, operating with much less effort. The U.S. Department of Energy confirms that if you run an average heat pump year-round at 85 degrees, you’ll experience up to $400 a year in energy savings.
If you’re in the market for a heater, you’re probably already invested in your pool, and making it an enjoyable experience. Why not go the extra mile?
A premium heat pump model won’t just heat your pool, but also keep the water cooler when the weather is too hot outside.
As the pool water circulates through the pool pump, it passes through a filter and the heat pump heater. The heat pump heater has a fan that draws in the outside air and directs it over the evaporator coil. Liquid refrigerant within the evaporator coil absorbs the heat from the outside air and becomes a gas. The warm gas in the coil then passes through the compressor. The compressor increases the heat, creating a very hot gas that then passes through the condenser. The condenser transfers the heat from the hot gas to the cooler pool water circulating through the heater. The heated water then returns to the pool. The hot gas, as it flows through the condenser coil, returns to liquid form and back to the evaporator, where the whole process begins again.
Higher efficiency heat pump pool heaters usually use scroll compressors versus the reciprocal compressors of standard units.
Heat pump pool heaters work efficiently as long as the outside temperature remains above the 45ºF–50ºF range. The cooler the outside air they draw in, the less efficient they are, resulting in higher energy bills. However, since most people use outdoor pools during warm and mild weather, this usually isn't an issue.
You should have a trained pool professional perform a proper sizing analysis for your specific pool to determine pool heater size.
Sizing a heat pump pool heater involves many factors. Basically, a heater is sized according to the surface area of the pool and the difference between the pool and the average air temperatures. Other factors also affect the heating load for outdoor pools, such as wind exposure, humidity levels, and cool night temperatures. Therefore, pools located in areas with higher average wind speeds at the pool surface, lower humidity, and cool nights will require a larger heater.
Heat pump pool heaters are rated by Btu output and horsepower (hp). Standard sizes include 3.5 hp/75,000 Btu, 5 hp/100,000 Btu, and 6 hp/125,000 Btu.
To calculate an approximate heater size for an outdoor swimming pool, follow these steps:
Pool Area x Temperature Rise x 12
This formula is based on 1º to 1-1/4ºF temperature rise per hour and a 3-1/2 mile per hour average wind at the pool surface. For a 1-1/2ºF rise multiply by 1.5. For a 2ºF rise multiply by 2.0.
For an outdoor pool, use the following tables to help estimate your annual heat pump pool heater costs and savings compared to using an electric resistance or a gas pool heater.
Table 1 estimates annual heat pump pool heating costs by location, by water temperature, and with or without using a pool cover.
Table 1. Costs by Location of Heating Outdoor Pools with a Heat Pump*
LOCATION SEASON TEMPERATURE 78° 80° 82° Miami 1/1–12/31 $ $ $ w/ cover 1/1–12/31 $293 $409 $559 Phoenix 3/1–10/31 $927 $ $ w/ cover 3/1–10/31 $49 $116 $158 Dallas 4/1–10/31 $491 $ $ w/ cover 4/1–10/31 $123 $191 $279 Atlanta 4/1–10/31 $ $ $ w/ cover 4/1–10/31 $211 $279 $395 Los Angeles 5/1–10/31 $ $ $ w/ cover 5/1–10/31 $116 $211 $327 Kansas City 5/1–10/31 $974 $ $ w/ cover 5/1–10/31 $198 $279 $368 New York 5/1–9/30 $ $ $ w/ cover 5/1–9/30 $143 $204 $273 Chicago 5/1–9/30 $ $ $ w/ cover 5/1–9/30 $143 $204 $266 Denver 5/1–8/31 $ $ $ w/ cover 5/1–8/31 $95 $136 $204 Boston 5/1–8/31 $ $ $ w/ cover 5/1–8/31 $164 $225 $320 Minneapolis 6/1–9/30 $899 $ $ w/ cover 6/1–9/30 $136 $170 $259 San Fran 6/1–8/31 $ $ $ w/ cover 6/1–8/31 $129 $225 $327 Seattle 6/1–8/31 $ $ $ w/ cover 6/1–8/31 $204 $293 $382*Figures based on a 1,000 square foot, outdoor pool heated with an air to water heat pump with an average COP of 5.0 at $./kwh.
Table 2 estimates the savings for every $ in annual pool heating costs using a heat pump pool heater compared to using an electric resistance or gas pool heater with an efficiency of 55% (baseline).
Table 2. Annual Savings Comparisons of
Gas and Electric Pool Heaters*
*Based on an electric resistance heated pool, which costs $1,000 per year at an electric cost of $./kwh, and using a gas pool heater with a 55% efficiency (baseline) at a cost of $1.09/therm. A seasonal average COP of 5.0 was used to determine heat pump savings.
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