Swimming Pool Heating; Everything You Should Know

Most times you might found out that your swimming pool is unusable, too cold for your health. This may be due to weather or seasonal condition or temperature changes. But you can easily scale through this and use your swimming pool all around the year.

Heating a swimming pool consumes a lot of energy hence why you need to know all about what goes into heating a swimming pool and how to. Also, check out this powerful electric pool heater.

Types of Swimming Pool Heater

There are three types of swimming pool heaters with each offering different kinds of cost efficiency and energy-saving up. They are Gas swimming pool heaters, heat pumps or electricity swimming pool heaters, and solar swimming pool heaters. 

Gas Swimming Pool Heaters

Gas-fired swimming pool heaters are largely the main or most popular system for heating a swimming pool. There are a new variety of gas-fired pool heaters surfacing daily, but depending on the climate and temperature, they are not much energy efficient as other kinds of swimming pool heaters.

How Gas Swimming Pool Heaters Works

Gas pool heaters use either propane or gas. As the pump circulates the pool’s water, the water passes through a filter into the heater.

The gas burns in the combustion chamber generate heats that are transferred into the water that is returned to the pool.

Gas heaters are most effective when heating pools for a brief period, they’re rather an honest choice for pools that aren’t used most frequently. They can also maintain the desired or needed temperature at any given time regardless of the climatic conditions.

Before choosing a gas heater, you must consider the:


This is relative to choose the heater that will work best with your swimming pool. Such sizing factors to be considered are; the surface area of the pool, the differences in the average temperatures relative to the size of the pool. Wind exposure and lastly humidity level.


The efficiency of the heater is the ratio of usable output to energy input. This simply put is the percentage of the gas efficiency to the cost of fuel used. You can sometimes see the efficiency percentages on the nameplate of many heaters.

And lastly the cost and repairs without forgetting the maintenance expenditure.

Heat Pump or Electricity Swimming Pool Heaters

Heat pump heaters don’t generate heat, they use electricity to capture heat, moving it from one place to another.

Water flows from the pool pump and passes through a filter into the heat pump heater. There is a fan in the heat pump heater that draws in outside air from the surrounding environment, directing it over the evaporator coil.

Liquid refrigerant around the evaporator coil turns the outside air into a gas by absorbing the heat. The warm gasses in the coil are then transferred through the compressor, here the compressor increases the heat. The really hot gas passes through the condenser. The condenser transports the hot gas into the cool pool water circulating in the heater. The heated water now returns into the pool.

There are two types of heat pump swimming pool heaters, they are water-source or air-source. They both work the same way, the only difference is air-source generates heat from the air around but water-source heater transfers heat from a water source.

The Benefits of Electric Heater

  • Electric heaters have a long lifespan in comparison to gas heaters.
  • It emits no pollution and very reliable.
  • The electric heat pumps have a feature that allows you to cool the water if the temperature is moderate or extremely hot. This heating and cooling functionality ensure the ideal temperature all year around.

The Cons

  • The electric heaters require large circuit breakers and a lot of wiring which necessitates costly installation.
  • It takes a longer time to heat which increases the costs of running energy.

Solar Swimming Pool Heaters

Pool water flows from the filter which roves debris from the water before the water runs into the solar collector. Here the water is heated before it is returned to the pool. The solar pool heaters make use of the sun’s free energy to heat the water.

It is eco-friendly, affordable, and requires lower maintenance. It also requires low cost for running, quite easy to install, and long-lasting as its components don’t rust.