3 Ways To Heat Up Swimming Pool Water

Are you looking for the best way to heat up your pool fast? There are three types of pool heaters that can help. They are solar heating, which comes in 3 options. Solar covers, Liquid covers, and Dome covers. Also, there are heater systems which are Gas and Pool heat pumps.

No matter which kind of heating method you use your pool’s heat-up time depends on a few things. What type of pool you have, how much water it holds, whether it’s insulated or not, and how much sun the pool gets during the day.

Solar Heating

The sun is nature’s free pool water heater. An average pool will heat up about 0.7 degrees Fahrenheit per hour under the sun’s heat but the downside to that is evaporation, and evaporation can cause the same pool to lose 5 degrees Fahrenheit for every quarter inch of water that evaporates.

Solar Pool Cover

So here’s where the solar pool covers come in. Solar pool covers or more commonly named solar blankets are large sheets of insulating plastic that look like bubble wrap and lie on top of your pool water.

They not only capture the heat from the sun but also help keep the heat in the water by reducing water evaporation, especially at night.

A lot of the heat that your pool gains during the day is lost at night and solar covers are a good way to keep some of that heat from being lost and also cuts evaporation down by about 95 percent. When water evaporates from your pool, it also loses the chemicals in that water.

A solar cover can prevent 35 to 60 percent of your pool water chemicals from disappearing into thin air. Depending on where you live a solar cover may not keep the water as warm as an electric or gas heater but it can still reduce water evaporation to help retain heat.

Which color solar cover is best to use. Clear solar covers allow more of the sun’s heat to penetrate into the water and can increase the water temperature by about 15 degrees Fahrenheit and prevent up to 95 percent of pool water and chemical evaporation. Dark blue solar covers on the other hand are also good for heat retention.

If you have a gas heater or a pool heat pump your heater won’t need to run as long with a dark blue cover. If you have a large pool or you swim very often removing the solar cover can be a bit annoying. You can cut the solar blanket into smaller pieces and remove the pieces individually or it might be worth investing in a solar cover reel.

Liquid Solar Pool Cover

Liquid solar covers are easier to use than solar covers, but solar covers are about 25 percent more effective at keeping heat and water in the pool. Whether you use a liquid cover or a solar cover they both help retain heat and stop evaporation, especially at night.

Solar Pool Dome

If you have an above-ground pool you may want to consider heating the pool with a solar dome. A solar dome collects and stores the sun’s heat. The pool water circulates through warming channels before returning to the pool.

Solar domes can raise the temperature of your pool by up to 10 degrees Fahrenheit especially over several hot days. Solar domes can be a bit more challenging to install and require some extra connectors if you’re trying to position it where there’s more sun.

They are also not cheap but aside from the initial cost, it runs on solar power which means it’s completely free heat for your pool. If a solar dome is a little out of your budget or you’re feeling handy dandy you can try making your own cheap solar heater with a black irrigation hose and a sump pump.

A DIY solar heater is the same concept as a solar dome. You are essentially pumping the water out of your pool via a sump pump and into a large coil of black irrigation hose. The water warms up when passing through the black irrigation hose and then returns back into the pool.

Heater Systems

Heater systems are the most expensive pool heating options but they’re the most powerful and effective.

Pool Gas Heater

A gas pool heater uses natural gas or propane to heat up the pool water. The water passes through a heater while a combustion chamber burns and warms the water before returning it back into the pool.

Gas heaters are probably the most powerful heating option. They will heat your pool quickly especially if you live where temperatures are cooler. However, it’s not a cheap system to install and you have to pay for gas to keep it running.

Pool Heat Pump

Pool heat pumps on the other hand draw in warm air from the atmosphere and uses that air to heat a pool. It’s a low-energy process that relies entirely on your outside temperature, as long as the weather is warm enough around 40 degrees Fahrenheit or higher.

A pool heat pump can be a good option regardless of how you heat your pool.

I recommend getting some type of surface protection like a solar cover so that you don’t lose water and heat at night. Solar covers are the more cheaper and versatile option of the three. They are a lot easier to handle and store away when not in use.