10 Best Pool Heater of August 2025

Best Pool Heater Reviews & Buying Guide Of 2021 In Canada

Swimming in the backyard pool is so much fun, but the going gets tough in the colder months, and the cold water is not so good for the body. To get the most out of the swimming pool, it is essential to consider a pool heater. Heating pools in typical ways takes too much time, and the final electricity bill is unbearable. So, to improve the swimming pool’s efficiency in power consumption, it is crucial to install a pool heater. Pool heaters can help the owners to keep the pool open for more extended periods. Pool heaters use no natural sunlight so that one can use the pool even at night time. The swimming pool is heated in different ways with different heaters. Each of them comes with a unique and unusual method. The standard measuring unit for all of them is the British thermal unit (BTU). This rating helps understand the heating efficiency and the time it takes to raise the pool’s temperature. In this guide, some significant pool heaters & few parameters are highlighted to consider before buying.

Types Of Pool Heaters

Heat Water Pump

This is an electric device that needs a constant supply of power to run. The electrical nature in no manner affects the pool's temperature, but it uses warm air in the environment to heat the pool water, which passes through the heat pump. One of the most significant advantages of using water pumps is that it runs with low annual operating costs. The lifespan is long, and it can be relied upon in any extreme weather conditions.

Solar Water Pool Heaters

Solar pool heaters are undoubtedly the most effective heaters in the entire marketplace. They are present forever without asking for any extra maintenance and servicing charges. Solar water heaters come in two variants. Unglazed and glazed solar water heaters use two different sets of techniques and materials to be stable and efficient. Unglazed heaters come with UV-treated rubber, and it is more durable than any plastic material. In the case of glazed solar heaters, they come with expensive copper tubings to make the overall device more accurate. Both these heaters can be used all year round, and its performance is not affected by harsh weather conditions.

Gas Pool Heaters

A gas pump pool heater uses an entirely different method to establish that high temperature. It runs on two essential organic compounds, and they are propane gas and natural, Butane gas. The copper coils present in the combustion chamber help in passing the gas throughout the entire pool system. These are more affordable pool systems with low maintenance. They are also easy to install and operate. However, these gas pool heaters are not aesthetically pleasing, and they can only be used occasionally. One can even set the temperature they desire without compromising on too much current.

Lightweight Pool Heater

This is a lightweight pool heater with a little over 20,000 BTU, so it weighs less and is powerful. The installation method is pretty straightforward, and the heater shuts down automatically when the pump powers down. Lightweight heaters can run through multiple seasons with high-temperature accuracy. The noise level is minimized with a significant plumbing system.

Things To Consider Before Buying A Pool Heater

Climatic Conditions of Where you Live

The warmest regions need a different type of support system when compared with a colder part. So, the climate where one lives has a direct impact on the pool water’s temperature. The temperatures in a particular area may sound convenient, but one should also consider the pool's surface. The heat rays or the sunlight cannot penetrate to the pool's bottom, so the surface temperature is at least three degrees higher.

Usage Frequency

Pool heaters can be a significant investment, and it is crucial to consider usage frequency. If one wants to use it only in the winter months, they should get a lightweight heater or a gas pool heater. So, make sure to note down the usage frequency and estimate the amount of money you are willing to spend.

Type & Size of Pool

There is a big difference between concrete-based pools and fiberglass pools. In each of them, they have a unique support system to help retain heat and temperature. The size of the pool also impacts the heater. If the size is enormous, one should make sure that the power ratings align with that amount. If one has above ground swimming pools, they require less power and time to heat the water volume.

Tankless Heaters

These modern heaters and sensors are much advanced in raising the temperature levels. These tankless and smart heaters come with a remote control to attain easy access. The interior parts are made with titanium, and this helps in resisting harsh weather conditions. They are even better at resisting heavy-duty operations. Tankless heaters also come with thermostats, which are automatic and heats very quickly.

Price

The price of pool heaters varies based on many factors. Some heaters are even compatible with pools made with wood materials. Portable solar heaters are more expensive, but they are more reliable in the long term. The price ranges anywhere between 140 CDN Dollars to 1000 CDN Dollars.

Warranty

The minimum warranty period given by every manufacturer is one year. One can even get waterproof warming heat mats with the pool heaters. Try to include as many features as feasible. Also, stay in connection with the seller to get easy installations and regular servicing offers.

Final Words

There you have it, folks! The main things to consider are the size and type of pool. Haywards pool heaters come with more versatile features to ensure safety. If one has small swimming pools, they should get titanium lightweight pool heaters. They have more portability and durability. The best option for pool owners would be a solar pool heater to save energy and maintenance costs. If one likes to take a dip occasionally, it is advised to spend too much, and they should go with gas heat. To get the best selection of products, visit the top 10 list given above.