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305-259-5669

or text agent green & team

Serving the Greater Miami Area

305-259-5669

or text agent green & team

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How Is a Swimming Pool Heater Sized?

*Air On Demand no longer offers pool heater services. Please visit our service page to learn more about our Florida air conditioning services.

A swimming pool doesn’t have to be a seasonal luxury, especially in Miami, with our wonderful year-round weather. With the proper pool heater keeping the water warm and inviting, you can enjoy your pool through cool and overcast days as if it were summer.

However, a pool heater is only worthwhile if it’s the right size to heat up the water in the pool. Proper sizing is an important part of pool heater installation, which is one of many reasons you should only hire professionals to handle the job. Air on Demand has provided heating services for more than two decades; put your trust in us to find the right type and size pool heater for South Miami, FL to keep you happy every month of the year.

Similar to how the power of air conditioners is measured, swimming pool heaters are rated by their output of BTUs (British Thermal Units). A BTU is the energy required to change the temperature of 1 pound of water by one degree Fahrenheit. (To compare to another measurement of heating, 1 BTU = approx. 1055 joules.) To correctly size a pool heater, an installer must determine how many BTUs the heater must create to raise the pool’s temperature to a comfortable level.

This isn’t only a question of figuring out the volume of water in the pool. Surface area is crucial. The pool loses heat rapidly off the surface, and the pool heater must heat the water faster than this loss. Once the heater reaches an ideal temperature, it must then maintain only enough power to compensate for the surface area loss.

The next factor to consider is temperature rise, which is the desired water temperature minus the ambient air temperature.

The technician now takes the surface area and the temperature rise and uses a chart to determine the required heating output per hour, measured in BTUs.

It doesn’t end there, however. Pool heaters have an efficiency rating their manufacturers set that measures how well the heater transfers its energy to the water, expressed as a percentage. The technician will multiply the BTUs required per hour by this efficiency rating to find the heater that can provide the correct amount of heat.

Does this sound like too much number-crunching for you? You don’t have to worry—this is why you bring in experts like those at Air on Demand to install your pool heater in South Miami, FL. Contact us today, and we’ll find the right heater for you in no time at all, and you won’t even have to touch a calculator.

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