Before we get started, let’s be up front about what you can expect to read here. If you’re not interested in specialty electronics, or pools, or the different ways which exist to heat said pools, you probably aren’t going to find much of use here. That’s not to say you won’t find other interesting articles on our website – you certainly will.

But like many of those, this piece is about a very specific topic; in this case, how pool heaters work. That’s a little vague since different types of heaters warm the water in different ways, but we’ll explain about three major varieties to be thorough.

Some pool heaters operate on solar energy. They’re certainly environmentally friendly, but because of their inherently limited function, you might not find one of these useful if you happen to live in a darker environment. These heaters absorb ultraviolet rays from the sun and convert them into thermal energy, which then heats up the water being fed through the heater.

Since this is essentially converting one kind of heat into another, the rates tend to be pretty good, at least when using high-end solar pool heaters. Besides those, there are  gas varieties.

Gas powered pool heaters might run off of butane, propane or another type of compressed gas depending on their make and manufacturer. Unlike solar heaters, gas heaters can work with a steady, constant fuel supply, and they don’t stop working or work less overall because the sun goes down or the sky gets cloudy. They certainly cost more to operate though.

At Pool Heater World you can find a variety of different heaters to suit your needs. The page also explains some of the key differences between different types of pool heaters, so it’s a valuable resource if you’re shopping for one of these items.

Electric pool heaters are also available and can be run on either an attached battery or directly from a wall socket like any other electronic device. The only worry here is mixing that electricity with the water in the machine.

Of course, they are built to prevent this from happening, but that’s no guarantee that such a thing won’t occur. Electricity tends to be cheaper than gas and it is more readily available in some locales, so electric heaters do still fill a niche. You can find those as well at if you want to compare prices and selling points.

Now that you know a little bit more about the three major types of pool heaters – solar, gas and electric – you’re in a better position to make a buying decision. Look at the type of pool you have, the normal weather for your environment, the availability of gas and electric power and the amount of time you think you’ll need to actually use the heater.

Once you figure out all of these other points, you’ll finally be ready to buy. This is a good thing too, since with autumn and winter coming on soon people who want to keep swimming will need a good heater.