
Pool heaters can significantly enhance your swimming experience by keeping your water warm and comfortable, extending your pool season, and allowing you to enjoy your pool no matter the weather. However, with multiple options available—including gas heaters, heat pumps, and electric pool heaters—choosing the right one can be overwhelming.
In this guide, we’ll break down the different types of pool heaters, their benefits, and how to determine the best option based on factors like climate, pool size, energy costs, and usage habits. Whether you're looking for fast heating, energy efficiency, or an eco-friendly solution, this guide will help you make an informed decision. Click on each section to learn more:
- Gas Pool Heaters
- Gas with Heat Integrated Bypass Technology
- Heat Pumps
- Electric Pool Heaters
- Heat Pumps vs. Gas Heat
If you are looking for the perfect pool heater, contact us. We can help you decide which one is right for your situation.
Pool Heaters
1. Gas Pool Heaters
Jandy JXIQ Pool Heater, 200, Natural Gas, Copper Hx, Versaflo, Poly Header- by Jandy
Gas pool heaters use either natural gas or propane to heat the water in your pool or spa. They are an excellent option if you have access to affordable gas or if electricity costs in your area are high. One of the biggest advantages of a gas heater is its ability to heat water quickly, making it a great choice if you want to enjoy a warm pool on short notice.
Works in Any Climate
Unlike some other heating options, gas pool heaters perform well in all weather conditions. Whether it’s a cool evening or an early spring morning, a gas heater will ensure your pool or spa reaches a comfortable temperature, even when the air temperature is low.
Choosing the Right Size
Gas pool heaters come in various sizes to suit different pool types. The right size will depend on factors such as
- Your pool’s volume
- Desired temperature increase
- How frequently you plan to heat the water
A pool professional can assess your needs and help you select the best gas heater to maximize efficiency and performance.
Gas heaters with Integrated Bypass Technology, such as the Jandy JXi™ Pool and Spa Heater with VersaFlo™, offer all the benefits of a traditional gas heater with added energy efficiency. This advanced technology helps reduce energy consumption by up to 20%, making it a cost-effective option for heating your pool or spa.
Two Modes for Optimal Efficiency
These innovative pool heaters feature two operating modes:
- Heat Mode: Water is directed through the heat exchanger to quickly warm up your pool or spa.
- Bypass Mode: When heating isn’t needed, the system bypasses the heat exchanger, reducing strain on your pool pump and saving electricity.
Since pool heaters are typically only in use for about 3.5% of a pool pump’s annual runtime, having the ability to bypass the heater when it’s not needed can lead to significant savings—potentially up to $350 per year.
Ideal for Energy-Conscious Pool Owners
If you’re looking for a gas pool heater that provides fast, reliable heating while lowering your energy costs, a model with Integrated Bypass Technology is a smart investment. It allows you to heat your pool only when necessary while reducing wear on your equipment and cutting down on operational expenses.
3. Heat Pump Pool Heaters
Zodiac Heat Pump Pool Heater Z650iQJXI Pool Heater 200 Natural - by Zodiac
Heat pump pool heaters are an affordable and eco-friendly solution for maintaining an ideal water temperature in your pool. They are easy to install, requiring only electrical and hydraulic connections, making them suitable for both new constructions and existing pools.
How They Work
Heat pumps operate by extracting heat from the ambient air and transferring it to the pool water. This process is energy-efficient, as it uses the existing warmth in the air, resulting in lower operational costs compared to traditional heating methods.
Performance in Various Climates
Modern heat pumps are designed to function effectively in a range of environmental conditions. For instance, the Z250iQ model by Zodiac utilizes horizontal full inverter technology with three modes—Boost, Smart, and Ecosilence—and operates efficiently in outdoor air temperatures as low as -7°C, extending your swimming season. Similarly, the Z550iQ is suitable for compact spaces due to its reduced footprint and vertical airflow design, allowing for discreet installation near any pool.
Advantages of Heat Pumps
- Energy Efficiency: By harnessing heat from the air, heat pumps consume less energy, leading to cost savings.
- Environmental Impact: Their efficient operation results in reduced greenhouse gas emissions, making them a greener choice.
- Versatility: With various models available, heat pumps can accommodate different pool sizes and climates, ensuring optimal performance.
Incorporating a heat pump into your pool's heating system offers a balance between comfort, cost-effectiveness, and environmental responsibility.
Electric pool heaters are efficient, stand-alone units that offer a budget-friendly option for maintaining your pool's temperature. Their compact design allows for straightforward installation into your existing filtration system, making them an attractive choice for pool owners seeking simplicity and affordability.
How They Work
These heaters function by integrating directly with your pool's filtration system. Once installed, you simply activate the filtration to commence heating. Typically, the water reaches the desired temperature within 2 to 5 days, after which the heater maintains this temperature to ensure consistent comfort.
Suitable Models for Various Pool Sizes
Zodiac® offers a range of electric heaters tailored to different pool dimensions and requirements:
- RED LINE Range: Known for delivering excellent value, these heaters rapidly warm your pool and sustain the set temperature, all at a competitive price point.
- RE/L Range: Designed for smaller pools, these heaters are user-friendly and ensure your water remains at an optimal temperature.
- RE/U Range: A modular option suitable for pools ranging from 80 to 160 m³, offering digital regulation and robust performance.
- RE/I Range: Among the most powerful in the Zodiac® lineup, these heaters are ideal for larger pools exceeding 150 m³, providing comprehensive digital control and durability.
When selecting an electric pool heater, consider factors such as your pool's size, usage patterns, and specific heating needs to choose the model that best aligns with your requirements.
5. Heat Pumps vs. Gas Heat
Heat pumps are most efficient in warmer climates where the air temperature stays above 50°F (10°C). - Image by Engin Akyurt from Pixabay
Choosing between heat pumps and gas pool heaters depends on several factors. While both options effectively heat your pool, they operate differently and are suited for different climates, usage habits, and energy costs. Here are the key considerations to help determine which heating option is best for your pool.
Climate Considerations
Heat pumps are most efficient in warmer climates where the air temperature stays above 50°F (10°C). They extract heat from the air to warm the water, making them an energy-efficient option in regions with mild to hot weather.
Gas heaters, on the other hand, can quickly heat your pool regardless of the outside temperature, making them ideal for colder climates or for those who want to extend their swimming season into the fall and winter.
Pool Usage Frequency
If you plan to use your pool frequently and want to maintain a consistent temperature, a heat pump is a great choice. It gradually heats the water and maintains warmth efficiently.
If you only use your pool occasionally or want to heat it quickly for weekend use, a gas heater is the better option since it warms water much faster than a heat pump.
Pool Size and Heating Needs
Heat pumps work best for smaller to medium-sized pools or pools that stay heated consistently.
Gas heaters are more effective for large pools or spas that require rapid heating on demand.
Energy Costs and Availability
The cost of gas vs. electricity in your area is another important factor. If electricity rates are lower in your region, a heat pump can be a cost-effective option over time due to its energy efficiency.
If natural gas or propane is affordable and readily available, a gas heater may be the better choice, especially if you need fast heating.
Making the Right Choice
The best way to determine whether a heat pump or a gas pool heater is right for you is to evaluate your climate, pool usage habits, and energy costs. Consulting with a pool professional can help you make the best decision for your specific needs and budget.
For the Best Pool Heaters, Contact Generations Heating & Air Conditioning
Generations Heating and Air Conditioning is committed to helping you find the perfect pool heater for your situation. With our expertise and a wide range of options, we can tailor a solution to your specific needs. We also provide maintenance and repair services for your pool heater.
Schedule a consultation and extend your swimming season today.
Generations: Your Furnace Expert Too!
At Generations Heating & Air Conditioning, our TSSA-certified technicians are friendly, knowledgeable, and dedicated to providing top-notch furnace maintenance and repair services. Serving Cambridge, Kitchener, Waterloo, and surrounding areas, we offer emergency furnace repair services when you need them most. To ensure your furnace operates at peak performance and efficiency, we strongly recommend a yearly inspection and maintenance program.
We will not only look after your furnace but also provide a full range of home comfort services including:
- Air Quality
- Ductless Heating
- Hybrid Heating
- Fireplaces
- Water Softeners
- Pool Heating
- Air Conditioning
- Duct Free
- Gas Fitting
- Water Heaters
Contact Generations Heating & Air Conditioning today at 519-635-4561 or fill out our online form to schedule your appointment.

What Our Customers Are Saying...
"I had a problem with my 13 year old pool heater. Generations was recommended by my pool store. I called and they came out the next day. Diagnosis of the problem was quick and a replacement part was on the truck. Excellent service, great advice was received and a fair price for the work done. What more could I ask for. I highly recommend this company."
-Dan Anderson