Pool Heaters | Pool Supplies Canada (2024)

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Gas Pool Heaters

The gas heater comes in either natural gas or propane models and is available for both above ground and inground pools. Gas pool heaters come in electronic or millivolt (standing pilot) versions.

Millivolt models are a traditional technology which uses a permanent pilot light which is slightly less efficient than the electronic version, but does not require electrical service. The millivolt style has a constant burning flame pilot which may occasionally need to be re-lit and which can be trying on a windy day.

Electronic versions are like a modern gas boiler and feature electronic spark ignition and micro processor controls, giving you complete control of your pool temperature at the push of a button. An electronic start allows the pool owner to use a push start to light the pilot in much the same way a gas BBQ is lit. Many people enjoy the convenience and reliability of an electronic start heater, not to mention it provides more efficiency than a burning pilot heater. If current trends predict the future, we will see the extinction of millivolt style pool heaters one day.

Low NOx heaters have more advanced technology and produce lower emissions than traditional heaters which make them more efficient to run in terms of heat transfer allowing the pool water to warm more quickly as well as operating in a more environmentally friendly fashion. These types of heaters are becoming increasingly popular as people change over to more environmentally friendly options, which translates into operational savings. Low NOx heaters are equipped to handle oxygen levels at altitudes over 2000 feet, unlike traditional pool heaters.

Heat Pumps (Energy Efficient Electric Pool Heaters)

Heat pumps are energy efficient electric pool heaters that work by transferring heat from the surrounding air into the pool water, rather than generating heat themselves. In terms of energy used to heat, they typically are more efficient then a gas powered heater. These units require outside air temperatures above 12 degrees celsius to perform efficiently.

Electric Pool Heaters

An electric resistance heater is designed for a small above ground pool or spa. Electric pool heaters create heat in your pool by applying an electrical current to a heating element. The electric heater passes water over the element, heats it, and then moves the warm water through the assembly housing back into the pool until the desired temperature is reached.

Solar Pool Heaters

Solar heater systems are installed alongside the pool, directly on a fence or on top of a roof. The pool water is pumped through solar collectors which are designed to trap solar energy. The water is heated through the system and returned back to the pool.

What Size of Pool Heater Do I Need?

Note: All figures are approximate and based on a constant depth of 48" and a desired temperature increase of 10 degrees. Use only as a guideline, add a solar blanket to your pool for best results.

Installing Your Pool Heater

Pool heaters must be installed by a properly licensed technician because they can be dangerous due to the fuels and electrical parts involved. In the case of propane and natural gas you will require a licensed gas fitter and in the case of an electric heater or heat pump a licensed electrician. In addition the manufactures warranty on the unit will be void if found to be improperly installed by an unqualified service professional.