Top-Rated Summer Pool Heaters for Natural Gas: A Comprehensive Guide

Swimming pools provide endless fun during the hot summer months, but what about those cooler evenings or early mornings when the water temperature isn't quite as inviting? If you're looking to extend your pool season and enjoy warm water at any time, investing in a natural gas pool heater is a great option. These heaters are efficient, powerful, and capable of raising your pool's temperature quickly, allowing you to make the most out of your backyard oasis.

In this guide, we'll explore the top-rated natural gas pool heaters, offering you an in-depth look at their features, benefits, and the factors you should consider when choosing the right one for your pool.

What Is a Natural Gas Pool Heater?

A natural gas pool heater uses natural gas as a fuel source to heat water in your pool. It works by circulating water through the heater, where it's heated by a gas burner before being returned to the pool at a warmer temperature. Natural gas heaters are known for their rapid heating capabilities, making them ideal for pools that need a quick temperature boost.

These heaters are most commonly used in larger pools or pools that are in colder climates, where the ability to maintain a consistent and comfortable water temperature is essential. Additionally, natural gas heaters can be more cost-effective in the long run compared to electric models, especially in areas where natural gas is relatively inexpensive.

Key Considerations When Choosing a Natural Gas Pool Heater

Before diving into the top-rated models, let's go over the key factors you should consider when selecting a natural gas pool heater:

1. Pool Size: The size of your pool is one of the most important factors when choosing a heater. Larger pools require more powerful heaters to maintain the desired temperature. Be sure to check the BTU (British Thermal Unit) rating of the heater to ensure it's sufficient for your pool size.

2. Energy Efficiency: While natural gas is generally a cost-effective heating option, you'll want to look for a model that maximizes energy efficiency. A more efficient heater will lower your long-term operating costs and provide better value.

3. Heating Speed : One of the main advantages of natural gas heaters is their ability to heat water quickly. However, the heating time can vary based on the size of your pool and the heater's power. Consider how fast you want to be able to enjoy warm water.

4. Durability: A good pool heater should last for many years. Look for models made with corrosion-resistant materials, such as copper or titanium, to ensure longevity, especially if you live in an area with harsh weather conditions.

5. Cost : Initial cost, installation fees, and operational costs all play a role in your decision. While natural gas heaters tend to be more affordable upfront than solar or heat pump models, consider the long-term energy costs in your area.

Top-Rated Natural Gas Pool Heaters

Here are some of the best natural gas pool heaters on the market today, renowned for their performance, reliability, and value.

1. Pentair MasterTemp 400 -- Best Overall Natural Gas Pool Heater

Key Features:

• BTU Output: 400,000
• Energy Efficiency: 83%
• Material: Cupro-nickel heat exchanger, corrosion-resistant
• Size: Suitable for large pools
• Safety Features: Low NOx emission, safety shut-off mechanism

Why It's Great: Pentair is a trusted name in pool equipment, and the MasterTemp 400 is a standout model. This heater provides excellent heating performance with minimal energy consumption, making it ideal for both residential and commercial pools. It features a compact design, making it easy to install in tight spaces.

Its energy-efficient technology and low emissions make it eco-friendly while delivering fast heat. The durable cupro-nickel heat exchanger helps prevent corrosion, extending the life of the unit.

Pros:

• Quick heating capability
• Energy-efficient
• Environmentally friendly with low emissions
• Durable construction

Cons:

• Higher initial cost compared to some other models

2. Hayward Universal H-Series 400 -- Best for Large Pools

Key Features:

• BTU Output: 400,000
• Energy Efficiency: 84%
• Material: Copper heat exchanger
• Size: Ideal for large pools and spas
• Technology: Electronic ignition system

Why It's Great: Hayward's Universal H-Series 400 is designed for large pools that need a substantial amount of heating power. It boasts impressive efficiency and reliability, especially with its low NOx emission technology, making it compliant with local environmental standards. The heater's copper heat exchanger provides excellent heat transfer and durability.

This model is also equipped with an electronic ignition system, which eliminates the need for a standing pilot light, improving safety and convenience.

Pros:

• High BTU output for large pools
• Reliable and efficient
• Easy-to-use digital controls
• Eco-friendly with low emissions

Cons:

• Requires professional installation
• Higher cost

3. Raypak 336,000 BTU Digital Natural Gas Pool Heater -- Best Value

Key Features:

• BTU Output: 336,000
• Energy Efficiency: 81%
• Material: Copper heat exchanger
• Size: Suitable for medium to large pools
• Technology: Digital control panel for precise temperature settings

Why It's Great: Raypak is a leader in pool heating technology, and the 336,000 BTU model offers great value without compromising performance. It features a digital control panel that allows precise temperature adjustments, giving you full control over your pool's warmth.

Its copper heat exchanger offers superior heat transfer, and the unit is built to last with reliable components. It's an ideal choice for those looking for a balance between affordability and performance.

Pros:

• Cost-effective without sacrificing quality
• Easy-to-use digital control
• Reliable and durable

Cons:

• Not as energy-efficient as some other models
• May take longer to heat large pools

4. Jandy JXi 400 Natural Gas Pool Heater -- Best for Quick Heating

Key Features:

• BTU Output: 400,000
• Energy Efficiency: 84%
• Material: Titanium heat exchanger
• Size: Ideal for large pools
• Technology: LED control panel for easy monitoring

Why It's Great: The Jandy JXi 400 is known for its fast heating capabilities, perfect for pools that need a quick boost in temperature. It features a durable titanium heat exchanger that resists corrosion, making it an excellent choice for areas with harsh water conditions.

Its energy efficiency is top-notch, and the unit operates quietly. The LED control panel is easy to use, providing clear feedback on the system's performance and status.

Pros:

• Quick heating performance
• Corrosion-resistant titanium heat exchanger
• High energy efficiency

Cons:

• Higher upfront cost

5. Lochinvar EnergyRite 400 -- Best for Eco-Conscious Users

Key Features:

• BTU Output: 400,000
• Energy Efficiency: 89%
• Material: Copper heat exchanger
• Size: Suitable for large pools
• Technology: Ultra-low NOx emissions

Why It's Great: The Lochinvar EnergyRite 400 stands out for its focus on energy efficiency and environmental impact. It boasts an impressive 89% energy efficiency rating and ultra-low NOx emissions, making it one of the most eco-friendly natural gas pool heaters available.

Its copper heat exchanger ensures fast and reliable heating, while the digital control system offers precise temperature control for optimal pool comfort.

Pros:

• Ultra-low emissions
• Extremely energy-efficient
• Quiet operation

Cons:

• High initial cost
• Requires professional installation

Final Thoughts: Which Natural Gas Pool Heater Is Right for You?

Choosing the right natural gas pool heater depends on your pool's size, climate, and your heating preferences. If you have a large pool and need rapid heating, the Pentair MasterTemp 400 and Hayward Universal H-Series 400 are excellent choices. For a more budget-friendly option without sacrificing reliability, the Raypak 336,000 BTU heater is a great value.

If you want a top-tier, environmentally-conscious option with outstanding energy efficiency, the Lochinvar EnergyRite 400 might be the way to go. Finally, if you're looking for a heater that combines quick performance and durability, the Jandy JXi 400 is a solid pick.

Remember to also factor in installation costs, energy costs, and the long-term durability of the unit when making your decision. With the right natural gas pool heater, you'll be able to enjoy warm, comfortable water throughout the summer and beyond.