There are many different systems and options when considering how to heat your swimming pool. Location, pool size and the desired temperature all affect which option is best for your facility. This blog introduces you to the various pool heating solutions available and the important factors to consider in order to make an informed decision.
NATURAL GAS, PROPANE & ELECTRIC POOL HEATERS
Natural gas and propane pool heaters are still very common and have become increasingly more energy efficient, which we all know is good news for the environment but also for the pocket book of the person or facility paying for the fuel. These are great options depending on the availability of the desired fuel in the location of the swimming pool. For example, a swimming pool in the city will no doubt have access to either natural gas or propane, however a rural swimming pool will have to look into which option is available and at what cost. If neither natural gas nor propane is available for a reasonable and affordable cost, an electric pool heater may be the solution. As anyone who has had to pay electricity bill on their own knows, electricity does not come cheap. In this case, there are other, more affordable options available such as a heat pump, solar heating system, or even a wood fired boiler used in conjunction with a heat exchanger, all of which will be discussed more below.
BOILERS, WOOD FIRED BOILERS & HEAT EXCHANGERS
Boilers used in conjunction with a heat exchanger are another common method used to heat a swimming pool. A typical boiler is gas fired and used to heat the entire building, so tying it into a heat exchanger to heat the pool is a great idea. Again, location determines whether this option is viable depending on the availability and cost of fuel, either natural gas or propane. The boiler must be sized properly for this however; therefore consulting with a professional pool designer at the beginning stages of design and throughout is always a good idea to make sure there are no problems when the facility is constructed.
Wood fired boilers are a great option for a facility that has the outdoor space for it, as well as an abundance of wood to burn. Campgrounds, for example, typically have a lot of fire wood handy from cutting down trees to make campsites, wood left behind by campers, etc. So why not make use of it? In this case, a wood fired boiler connected to a heat exchanger is an extremely feasible option to heat the swimming pool. Keeping the fire stoked throughout the day and night is an important factor to consider before making your decision. Facilities like campgrounds are normally fully staffed throughout the summer season with employees who can handle the task. Delegating this job to an employee who will treat it as their baby and never let the fire die will ensure happy campers all season long!
A heat pump is an environmentally friendly option; however its effectiveness depends on the location of the swimming pool. Heat pumps will only work well in an environment with warm air to utilize. Operating much more efficiently than a natural gas, oil or an electric pool heater, a heat pump can show big monetary rewards in areas with high natural or propane gas costs. To run this efficiently, the heat pump extracts the heat from the air, intensifies the heat with a compressor, delivers the heat to the water, and exhausts the cooler air out the top of the unit. Since it uses the warm ambient air temperature to do the work, it is a very efficient way to heat water.
SOLAR POOL HEATING
A solar pool heating system is a great way to make use of the energy provided by the sun and save money with regards to heating a pool. A typical solar heating system has a “collector”, which is the system that the water circulates through, to warm it up using the sun’s energy. The water is pushed through the collector by the pool pump, which has to be sized properly to account for the extra work it has to do in comparison to a pool that does not use solar heating. Generally, the water that comes from the pool is first sent through a strainer, which removes any debris that may be present in the water that could damage or clog the pump and filter. Then, the water goes through the pump into the filter, where smaller impurities are filtered out. Once the water is filtered, it is sent into the solar “collector”, which is usually a series of tubes on a southern facing roof to heat the water inside of them. The warm water is then returned to the pool. This system is ideal, but its effectiveness depends on the location of the pool geographically. The system, as with any other pool heating system, must be sized properly for it to function as desired.
As always, it is best to consult with a professional pool consultant when considering a pool heating option for a new or existing facility.