Having pool heaters for inground pools is a luxury that many homeowners dream of. It provides a refreshing oasis right in your own backyard to escape the summer heat. But let’s face it – at certain times of the year, an unheated pool can be downright frigid. That’s where a quality pool heater comes in.

A pool heater allows you to extend your swim season and maximize your enjoyment of your inground pool. With the ability to raise the water temperature, you can comfortably use your pool even when outdoor temperatures start to drop in spring and fall. Nighttime swims also become feasible when you have a powerful heater maintaining your ideal temperature.

There are several types of pool heaters for inground pools to choose from, so the options can seem daunting at first. The key is to consider factors like your climate, pool size, desired temperature, and budget. In this comprehensive guide, we’ll break down the pros and cons of the different pool heater options to help you select the perfect heater for your inground pool.

1. Gas Pool Heaters For Inground Pools

Gas heaters are extremely popular for inground pools due to their efficiency and heating power. They work by burning either natural gas or propane to heat up the water from your pool’s pump and filter system before circulating it back into the pool.

2. Natural Gas Pool Heaters For Inground Pools

is great If your home already has natural gas service, a natural gas pool heater can be an excellent choice. They are very efficient, heating your pool water quickly and at a reasonable operating cost. Natural gas heaters do require gas lines to be installed or extended from your home’s gas meter to the heater location. This can add some extra installation costs, especially if you need longer gas line runs.

On the plus side, the price of natural gas is generally lower and more stable than propane. And many homeowners prioritize natural gas over propane if they already have that utility service in place. Most natural gas pool heaters have impressive energy efficiency ratings of 80-90% too.

3. Propane Heaters

Propane pool heaters for inground pools are also extremely common and provide fast, powerful heating capabilities. They operate in a very similar fashion to natural gas heaters but run off propane fuel stored in tanks rather than gas lines. This makes propane heaters easier and more affordable to install, since you avoid the gas line costs.

Instead, propane heaters require a large tank or multiple tanks that need to be refilled periodically when your fuel level gets low. This convenience factor is a tradeoff, since you’ll be paying higher rates per BTU (British Thermal Unit) versus natural gas. But many homeowners are happy to do so for the installation ease of propane heaters.

Sizing gas pool heaters for inground pools, When selecting a gas pool heater, the most important consideration is sizing it properly for your pool’s surface area, water volume, and desired temperature rise. Gas heaters are rated by their BTU input, which indicates their maximum heating capacity.

underpowered pool heaters for inground pools will struggle to raise the temperature quickly and keep up with heat loss. An oversized heater can short-cycle frequently which wastes energy. Most pool heater manufacturers provide sizing charts to guide you to the right BTU rating based on your pool’s size and regional climate data.

As a general rule of thumb, you will need around 100,000 BTUs of heating power for every 10,000 gallons of pool water that you want to raise by 10 degrees F. So if you have a 20,000 gallon pool and want to routinely heat it by 20 degrees in a mild climate, a 400,000 BTU heater would be a good fit.

Additional features for pool heaters for inground pools like cupro-nickel heat exchangers, noise-reduction technology, and digital controls can all be found on higher-end gas pool heaters. But a properly sized standard model from a trusted brand should serve most residential pool owners well.

4. Electric Heat Pump Pool Heaters for inground pools

Electric heat pump pool heaters for inground pools offer an efficient, eco-friendly way to heat your inground pool. Instead of burning fuel, they use electricity to capture thermal energy from the surrounding air and transfer it to the pool water.

Heat pumps are smaller and less visually obtrusive compared to gas heaters. They can provide impressively low operating costs too, since they just move heat rather than generating it directly. In moderate climates, heat pumps can be up to 600% more efficient than gas heaters.

On the downside, heat pump performance drops off as temperatures get lower. So they are ideal in hot, humid regions but may struggle to properly maintain desired temperatures in cooler climates.

To compensate for this, larger and more powerful heat pump models are available. But these will naturally come at a higher upfront cost compared to standard residential heat pump sizes.

Sizing a heat pump pool heaters for inground pools is just as critical as sizing a gas heater. Heat pumps are rated by their BTU output, which refers to the amount of heat they can move into the water per hour under ideal conditions. Look for sizing guidance from the manufacturers to match the pump’s BTU output to your pool’s heating needs.

Electric heat pumps are an excellent heating solution in many regions. But homeowners looking to maintain high temperatures year-round, especially with colder winters, may want to consider supplementing a heat pump with other pool heating methods.

solar pool heaters

Solar Pool Heaters For inground pools an eco-friendly and affordable pool heating solution, a solar pool heating system is also worth considering. Solar heaters use solar collectors, typically black panels or tubes, to absorb the sun’s thermal energy into a fluid that transfers heat to the pool’s circulated water.

For the average residential inground pool, solar can provide sufficient heating power to raise water temperatures by around 10-15 degrees when properly sized and installed. The exact temperature boost will depend on factors like the number of solar collectors, your regional climate, and sun exposure levels.

Proper installation and sun exposure are keys to maximizing solar heating performance. Solar collectors need to be tilted at the optimal angle and oriented toward the sun’s path for maximum heat gain. Any shading from trees, buildings, etc. can greatly diminish how much heat they collect.

Professionally installed systems can capture more consistent heat even when cloud coverage varies through the day. DIY solar panel kits are also an affordable option but often sacrifice some heating power compared to professionally designed systems.

Solar is one of the most cost-effective ways to heat a pool but does have limitations. Heating is dependent on the free energy from the sun, so performance will naturally vary throughout the day and across different seasons and weather conditions. Solar typically cannot provide the fast, on-demand heating capabilities of a gas pool heater.

For that reason, solar heating is most often used to supplement other pool heaters for inground pools and methods rather than as a complete stand-alone solution. Solar can help reduce the workload and extend the service life of other heaters. Many pools utilize a combination of solar heating panels paired with a gas heater or heat pump.

Additional Pool Heating Methods While gas, electric, and solar heating are the primary heater types, there are a few other methods to consider either on their own or combined in a hybrid system:

Electric Resistance Heaters – These compact in-line electric heaters are relatively inexpensive but can be inefficient and costly to operate versus other heating options. They provide reliable on-demand heating but use a lot of electricity.

Geothermal Heating – Geothermal systems leverage underground temperature differentials to act as a heat sink and provide pool heating and cooling. Installation costs are quite high but efficiency can be excellent once installed. Best suited for new pool construction.

Pool Heater Covers – Not technically a heater but a pool cover, especially one designed to retain heat, can significantly reduce heat loss and insulate your pool. Covers should be used with any type of pool heater for maximum efficiency.

Here at Clear Swim Pools we can help you Choose the Right Pool Heaters for inground pools and Your Needs. Hopefully, this guide has given you a thorough overview of the main types of pool heaters available for inground pools. The right heater for your setup will depend on several key factors:

• Your local climate and pool season goals
• Your pool size and desired temperature
• Installation/operating costs and energy efficiency
• Convenience factors like fuel delivery
• Environmental impact preferences

Assess all these elements to determine what pool heaters for inground pools whether a gas heater, heat pump, solar panels, or some combination will best serve your needs. Then work with local professionals to properly size and install the heater for peak performance and long-lasting functionality.

The ideal pool heaters for inground pools will allow you to get the maximum enjoyment and value from your backyard oasis. With the right heater, you’ll be able to swim comfortably all season long! contact Clear Swim Pools today!!