What Are the Components of a Pool Heat Pump?

pool heat pump

What Are the Components of a Pool Heat Pump?

A pool heat pump is an energy-efficient, eco-friendly way to keep your swimming pool warm. It costs less to run than a gas heater, and can help you extend your pool season.

A pool heat pump works by drawing in air that has been warmed by the sun and transferring that warm air to the water in your pool. It can do this even when the ambient temperature drops.

Evaporator Coil

The evaporator coil is one of the most important parts of your pool heat pump, and it’s responsible for absorbing the heat from outside air and transferring it to pool water. It’s located inside your indoor unit, usually near the system fan.

A fan pulls in warm air from the outdoors and directs it over an evaporator coil that contains a liquid refrigerant. This liquid refrigerant absorbs heat from the air that it’s circulating and changes it into a gas. This hot refrigerant is then pumped into a compressor that increases its temperature and pressure before passing through a condenser.

In this process, the heat pump moves heat from a source to a destination using less electricity than you might expect. It’s able to produce two to three units of heat for every unit of electricity that it consumes, which can make a big difference when the outdoor temperature starts to drop in winter.

During the cooling cycle, your heat pump’s evaporator coil is surrounded by panels and tubes that are lined with metal fins to help maximize the absorption of heat from the air. This helps the coil to maintain a consistent temperature.

This heat can then transfer to your pool water through a tube-in-tube heat exchanger. This is a special type of heat exchanger that works by cooling the refrigerant and releasing most of the heat it’s absorbed into the pool water.

When the water reaches the correct temperature, it flows through the pump that circulates it through your pool. The pump also uses a filter that cleans the water and filters out debris.

You can reduce your pool heat pump’s energy usage by keeping it clean. You can also hire a professional to perform annual maintenance and tune-ups on your unit. These services will keep it working efficiently and prevent larger problems like a frozen evaporator coil or broken parts.

If your evaporator coil is dirty or damaged, it can limit the efficiency of your heat pump and impede airflow through the entire heating and cooling system. This can lead to higher energy bills and poor performance, so be sure to call your local Air Experts today for a professional inspection.


The compressor is the largest component of a pool heat pump. It’s a big motor that drives a fan, circulates water and helps cool the refrigerant (the same kind used in air conditioning systems).

Compressors operate by using a rotor to force air through a cylinder. During this process, the air is pushed around by vanes attached to the rotor. The resulting pressure builds up and causes the air to pool heat pump be compressed. This compression is what creates the cooling effect that makes a pool warmer.

To run the compressor, the heat pump will need a source of electricity. Many modern heat pumps use a renewable energy source such as solar energy to power up the system.

Another source of electricity is the motor that drives a fan to circulate water. The fan also provides ventilation for the compressor. The fan can be a single speed motor or a variable speed model.

The compressor itself has an internal spinning rotor. The rotor is mounted off-center inside the cylinder. Vanes are also attached to the rotor, which move forward and back while traveling around in the cylinder. The resulting volume of air between the ring and the rotor changes, causing the liquid compressant to fill the cavity to its maximum size and forcing the pressurized air through the output port.

There are two types of compressors: sliding vane and rotary piston. Sliding vane is the more common of the two.

In a sliding vane type, the air enters the cylinder through an inlet valve, travels around the rotor and is trapped by curved vanes that are attached to the rotor. As the rotor turns, the pocket of gas is carried with it, and when the rotor is at its maximum, the liquid compressant fills the cylinder, which acts as a piston.

Compared to the rotary piston type, the sliding vane type is more compact and can be mounted in tight spaces. Besides, this type of compressor is more resistant to wear and tear.

A variable-speed compressor can be used to improve the efficiency of a heat pump system, especially in warm weather. This can help save energy and money. However, a variable-speed compressor may be less efficient than a fixed-speed unit. This is because the compressor will be subject to a wider range of temperatures and loads than the fixed-speed compressor. It will take more power to operate the compressor, which reduces its heating capacity and COP value.


A pool heat pump uses a technology known as refrigerant to keep the pool water at a temperature that is comfortable for you. It is the most energy-efficient heating option available for swimming pools.

The heat pump consists of an evaporator coil, a compressor and a condenser that work together to make the system function. Essentially, the evaporator coil draws in air that has been heated by the sun and converts this heat into a liquid refrigerant that is then circulated through the compressor. The compressor increases the pressure of the liquid refrigerant, which in turn causes it to increase in temperature.

This process is repeated multiple times until the gas has a very high temperature. Once it reaches a certain point, it is forced into the condenser. The condenser has a tube inside of it and this tube is also heated from the hot gas in the compressor. The hot gas in the condenser transfers its heat to the cool water inside the pool, which is then pumped back into the evaporator coil.

Next, the freon in the evaporator coil cools the hot gas, which is now a cold liquid, so that it can again be circulated through the compressor and out the condenser again. The cycle continues until the entire system is complete.

A pool heat pump is incredibly efficient, and it costs far less to run than any other pool heater. In addition, the COP value of most heat pumps is very high, which makes them a great choice for any type of pool.

Once the heat pump is working, it will maintain the desired temperature of your pool for as long as you want it to. This means that you can swim all summer without having to worry about a sudden spike in your energy bill.

You can choose a pool heat pump with a set temperature for each day of the season, or you can choose one that will automatically raise and lower pool heat pump the temperature based on the weather outside. This allows you to choose the best temperature for your preferences, which will save you money in the long run and make it more enjoyable to swim in your pool.


The thermostat, also known as a control panel, is a key element of your pool heat pump. When it is set to a specific temperature, the heat pump will start heating your pool water. Depending on the size of your pool and the time of year, this can be a very effective way to keep your pool warm throughout the day.

Thermostats work by using a series of sensors to determine the temperature of your pool and then automatically turning on the heat pump when it is needed to maintain that temperature. Some heat pumps even have an auto-temperature feature that will automatically switch between heating and cooling cycles when it is needed.

When the desired temperature of your pool is reached, the heat pump will stop. This is how you will save on electricity costs while maintaining your desired pool temperature.

There are many different types of thermostats available on the market today, but if you’re looking for a high-efficiency unit, look for one that has a Coefficient of Performance (COP) between 3.0 and 7.0. These units are designed to be energy efficient while still delivering an excellent level of comfort and enjoyment for your family and friends.

Some units have a pressure switch that prevents the heat pump from running when there is too much water flow or not enough water flow to prevent overheating and damage to the unit. Others have a low-ambient switch that allows the unit to operate in temperatures as low as 30 degrees Fahrenheit.

A good quality pool heater can cost thousands of dollars to purchase and install, but there are several things you can do to help reduce the cost of ownership. By adjusting the pool temperature thermostat to a lower setting, you can cut your overall heating costs by up to 30% per month.

Another thing you can do is turn the pool heat pump off when you’re not swimming. While it may seem counterintuitive, the heat pump will actually work twice as hard to get your pool back to a comfortable temperature when you turn off the unit.