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Best Pool Heaters

Discover high-performance Raypak natural gas pool heaters from 105,000 to 406,000 BTU, perfect for extending your swimming season with reliable, efficient heating.

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Varpoolfaye 40,000 BTU Pool Heat Pump: Inground & Above Ground Heater for 12,000 Gal Pools - WiFi Heating/Cooling, 220V Energy Efficient

Varpoolfaye 40,000 BTU electric pool heat pump delivers rapid heating and cooling for inground or above ground pools up to 12,000 gallons with a COP of 6.2. Pool owners wanting smart WiFi scheduling and year-round comfort should buy this for efficient, quiet performance.

  • Achieve swim-ready temperatures fast with 40,000 BTU output and high-pressure compressor for pools up to 12,000 gallons
  • Enjoy year-round pool use with heating up to 104°F and cooling down to 45°F modes
  • Control temperature and schedules remotely via intuitive WiFi app from anywhere
  • Save on energy bills with COP 6.2 efficiency by pulling heat from ambient air
  • Swim in peace at just 53 dB noise level for undisturbed backyard relaxation

Powerful 40,000 BTU heating/cooling for quick results on 12k gallon pools. Smart WiFi app for easy remote control and scheduling. Highly energy-efficient with COP 6.2, quieter than gas heaters.

Requires 220V-240V power supply and professional electrical setup. Best for pools under 12,000 gallons; oversized for smaller setups. Higher upfront flow rate needs of 2100 GPH from pool pump.

VARMINPOOL 30,000 BTU WiFi Electric Pool Heat Pump for Above Ground Pools Up to 8,000 Gallons - Titanium Exchanger, 120V Inverter

This VARMINPOOL 30,000 BTU electric heat pump efficiently warms above-ground pools up to 8,000 gallons using a smart inverter and titanium heat exchanger. Pool owners seeking WiFi app control and extended swim seasons in cooler weather should buy it.

  • Extend your pool season by heating water quickly for pools up to 8,000 gallons or 18 feet wide
  • Save on energy bills with smart inverter technology that adjusts output to your pool's needs
  • Control temperature and schedules remotely via WiFi app from anywhere
  • Resist corrosion in saltwater pools thanks to durable titanium heat exchanger
  • Withstand harsh weather with galvanized steel construction and evaporator shield

High-efficiency COP of 6.0 for low operating costs. WiFi connectivity for convenient remote monitoring and control. Corrosion-resistant titanium exchanger ideal for saltwater use.

Requires pool pump with 1,200-3,000 GPH flow rate. Limited to pools up to 8,000 gallons. Heavy at 90.4 lbs, may need two people for installation.

Raypak 406K BTU Digital Natural Gas Pool Heater - Cupro-Nickel Fin Tube, Pagoda Design, Model 014941

This Raypak 406,000 BTU digital natural gas pool heater uses cupro-nickel fins and polymer headers for superior resistance to chemicals and corrosion. Pool and spa owners needing a durable, wind-resistant unit with easy digital controls and remote compatibility will find it ideal.

  • Cupro-nickel heat exchanger resists harsh chemicals and prevents pool rust stains for years of reliable heating
  • Pagoda design keeps heater operational in high winds and downdrafts, ensuring consistent performance
  • Microprocessor thermostat allows one-touch precise temperature control for effortless pool or spa comfort
  • Remote-compatible operation adds convenience from anywhere in your backyard
  • Built-in diagnostic controls quickly identify and alert on issues for fast professional fixes

Exceptional build quality with galvanized, powder-coated cabinet for corrosion resistance. User-friendly digital interface simplifies operation and maintenance. Weatherproof pagoda style excels in tough outdoor conditions.

High BTU output may exceed needs for smaller pools or spas. Requires natural gas line and likely professional installation. Larger footprint due to robust cabinet design.

VARMINPOOL 30,000 BTU Electric Pool Heat Pump WiFi Inverter Titanium Exchanger 8000 Gallons 120V Above Ground Inground Pools

This VARMINPOOL electric pool heat pump delivers 30,000 BTU heating for pools up to 8,000 gallons using smart inverter technology and a titanium heat exchanger. Pool owners with above-ground or inground setups should buy it for efficient, WiFi-controlled year-round swimming.

  • Extend swimming season year-round by warming pools up to 8,000 gallons efficiently
  • Save on energy bills with smart inverter technology that adjusts to pool needs
  • Control temperature and schedules remotely via WiFi app from anywhere
  • Resist corrosion in saltwater pools thanks to durable titanium heat exchanger
  • Withstand harsh weather with galvanized steel build and evaporator shield

High COP 6.0 efficiency for consistent heating. WiFi app for convenient remote monitoring. Titanium exchanger built for longevity in saltwater.

Requires compatible pool pump with 1,200-3,000 GPH flow rate. Heavier at 90.4 lbs, may need two people for installation. Limited to 120V power supply.

Yoisie 1800W Immersion Water Heater: Portable Pool, Tub & Bucket Heater w/ Thermostat, Temp Display, Dry Burn Protection - 120V

This 1800W yoisie immersion water heater quickly warms bathtubs, hot tubs, inflatable pools, and buckets with real-time temperature display and precise thermostat control. Its standout safety features like auto shut-off and dry-burn protection make it perfect for homeowners, campers, and farmers needing reliable portable heating.

  • Instant safety with auto shut-off and dry-burn protection to prevent accidents in any container
  • Real-time temperature display and adjustable thermostat for precise, hands-free heating up to 175°F
  • Powerful 1800W heating efficiently warms tubs, pools, buckets, and tanks regardless of starting temperature
  • Plug-and-play portability with 6.6ft cord for easy use anywhere without tools or plumbing
  • Durable 304 stainless steel build resists corrosion and cleans effortlessly for repeated use

Fast, efficient heating for small to medium water volumes. Accurate real-time temp monitoring with auto-pause and restart. Highly portable and versatile for baths, farms, and campsites.

Displayed temperature reads about 10°F higher than actual water temp. Heating speed varies with water volume and starting temperature. Controller must stay dry and heater fully submerged during use.

Raypak 156A 150,000 BTU Natural Gas Pool Heater for Above-Ground Pools & Spas - Extend Swim Season

The Raypak PR156AENC is a 150,000 BTU natural gas heater with corrosion-resistant polymer headers for above-ground pools and spas. Its robust, fully serviceable build suits owners wanting reliable performance to extend their swim season.

  • Extend your swim season by opening your pool earlier and closing later
  • Ideal for above-ground pools and spas with easy 2-inch water connections
  • Corrosion-resistant polymer headers ensure long-lasting durability
  • Built to the same high standards as larger Raypak gas heaters
  • Fully serviceable design for straightforward maintenance and repairs

Versatile 120V or 240V installation options. Compact yet powerful for small to medium pools. Proven engineering from a trusted pool heater brand.

Elevation limited to 0-4,999 feet. Requires natural gas supply and professional setup. Higher initial investment for gas-powered heating.

TURBRO Manatee M18 18,000 BTU Pool Heat Pump - Electric Heater/Cooler for Above-Ground Pools up to 6,000 Gallons, 5.5 COP Titanium Exchanger, 110V IPX4

The TURBRO Manatee M18 is an 18,000 BTU electric heat pump that heats or cools above-ground pools and spas up to 6,000 gallons using efficient air-source technology with a 5.5 COP and titanium exchanger. It's perfect for small pool owners wanting cost-effective, corrosion-resistant temperature control for saltwater setups.

  • Extend swim seasons year-round by heating from 59-104°F or cooling from 46-82°F in ambient temps up to 109°F
  • Slash energy costs up to 40% with 5.5 COP efficiency using free ambient air heat instead of gas
  • Enjoy saltwater compatibility thanks to durable titanium heat exchanger that resists corrosion
  • Switch seamlessly between heating and cooling modes with built-in four-way valve
  • Simplify setup with plug-and-play design, included connectors, and no professional installation needed

Exceptional 5.5 COP for superior energy efficiency. Versatile heating and cooling for all-season use. Titanium exchanger handles saltwater without corrosion.

May take several days to reach desired temperature based on pool size and conditions. Water hoses and filter pump sold separately. Performance varies with ambient temperature, wind, and insulation.

Treela 2-Pack 1500W Portable Immersion Water Heater - Submersible 304 SS for Bathtubs, Buckets, Pools - Heats 5 Gallons in Minutes (Yellow)

Treela's 2-pack 1500W immersion water heaters are submersible units made of rust-proof 304 stainless steel that rapidly heat up to 5 gallons of water in minutes. With auto shut-off at 120-160°F for safety, they're ideal for quick heating in bathtubs, buckets, or small pools for campers, farmers, or winter car washers.

  • Rapidly heats 5 gallons of water in minutes for instant comfort in baths or buckets
  • Auto shut-off at 120-160°F prevents overheating and ensures safe, worry-free use
  • Rust-resistant 304 stainless steel build delivers durable, reliable performance
  • Simple submersion and plug-in design for effortless setup anywhere
  • Versatile for bathtubs, small pools, sinks, or animal watering needs

Exceptionally fast heating for small water volumes. Built-in safety auto power-off feature. High-quality, non-rusting 304 stainless steel.

Limited to small containers; not for large pools. Maximum 3-hour continuous use to prevent issues. Requires full submersion and careful handling for safety.

Coituer Koire 2000W Portable Immersion Water Heater for Buckets, Tubs & Pools - Auto Shut-Off, Steel Guard, Digital Thermometer

This 2000W portable immersion heater quickly warms water in buckets, tubs, inflatable pools, and foot baths with safety auto shut-off and stainless steel guard. It's ideal for RV campers, backyard pool owners, and home users needing fast, safe heating.

  • Heats water in minutes for instant comfort in icy buckets or tubs
  • Auto shut-off prevents overheating and dry-fire hazards for worry-free use
  • Stainless steel guard protects plastic, wood, or rubber containers from melting
  • Digital thermometer provides real-time readings to avoid cold shocks or scalds
  • Lightweight and portable design perfect for camping, RVs, and backyard pools

Rapid 2000W heating for quick results. Multiple safety features including auto shut-off and low-water detection. Versatile for pools, buckets, tubs, and foot baths.

Requires unplugging before touching water for safety. Needs a standard outlet nearby and proper submersion. Best for smaller volumes like buckets or tubs, not massive pools.

Raypak PR106AENC 105,000 BTU Natural Gas Pool Heater for Above-Ground Pools & Spas - Rust-Proof & Weather-Resistant

The Raypak PR106AENC is a 105,000 BTU natural gas heater for above-ground pools and spas, featuring an all-copper heat exchanger and polymer headers for rust-free durability. Its weather-resistant design delivers reliable heating, making it ideal for pool owners in variable climates seeking efficient, low-maintenance performance.

  • Rust-proof polymer headers eliminate stains on pool surfaces for a pristine finish
  • All-copper fin-tube exchanger provides fast, efficient heating that lasts years
  • Uninterrupted performance in rain, snow, wind, or debris without fans or drafting issues
  • Electronic ignition with pilot-only-when-needed for superior fuel efficiency exceeding standards
  • Easy analog dial controls simplify operation for hassle-free use

Durable copper heat exchanger resists corrosion and ensures long-term reliability. Weatherproof operation handles leaves, wind, rain, and snow without interruption. Fuel-efficient design meets or exceeds federal and state efficiency standards.

Requires natural gas line installation, limiting use to compatible setups. Needs a standard 3-prong power outlet for operation. Analog interface may lack modern digital features some users prefer.

Extend your swimming season and enjoy comfortable pool temperatures year-round with professional-grade pool heaters. This category showcases Raypak's premier natural gas models, ranging from compact 105,000 BTU units to powerful 406,000 BTU heaters, ideal for residential pools of all sizes. Whether you're heating a small backyard oasis or a larger inground pool, these reliable heaters deliver fast, efficient warmth while fitting seamlessly into your setup within the Pools, Hot Tubs & Supplies collection.

Why Raypak Dominates Pool Heaters

Raypak has built a stellar reputation for engineering durable, high-efficiency pool heaters trusted by professionals and homeowners alike. Known for innovative designs like digital electronic ignition and robust Cupro-Nickel heat exchangers, Raypak models stand out for their longevity and performance. Explore the Raypak brand page to see why they're the go-to choice for consistent heating without the hassle.

Key Features to Look for in Pool Heaters

When shopping for a pool heater, prioritize features that match your pool size, climate, and usage. Raypak's lineup excels in several areas:

  • BTU Output: From 105,000 BTU for smaller pools (up to 15,000 gallons) to 406,000 BTU for oversized or commercial setups.
  • Digital Controls: User-friendly interfaces for precise temperature settings and easy operation.
  • Heat Exchanger Materials: Standard copper or upgraded Cupro-Nickel for corrosion resistance in harsh water conditions.
  • Electronic Ignition: Reliable, energy-saving starts without pilot lights.
  • Natural Gas Efficiency: Cost-effective fuel source with quick heat-up times.

These features ensure minimal downtime and maximum enjoyment, making Raypak heaters a smart investment for any pool owner.

Choosing the Right BTU Rating for Your Pool

Selecting the correct BTU capacity is crucial for efficient heating without wasting energy. Here's a breakdown of standout Raypak models:

  • 105,000 BTU (e.g., PR106AENC): Perfect for small above-ground or spa combos, heating 10,000-15,000 gallon pools in mild climates.
  • 150,000 BTU (e.g., PR156AENC): Balances performance for medium residential pools up to 20,000 gallons.
  • 206,000 BTU (e.g., standard and Cupro-Nickel versions): Versatile for most inground pools, offering faster recovery in cooler weather.
  • 266,000 BTU: Ideal for larger 25,000+ gallon pools needing robust power.
  • 336,000 BTU (e.g., PR336AENC): High-output for demanding setups.
  • 406,000 BTU (Cupro-Nickel): Top-tier for oversized pools or rapid heating needs.

Factor in your pool's surface area, ambient temperature, and desired heat-up speed. For a full comparison, browse our dedicated Raypak Pool Heaters selection.

Common Use Cases and Benefits

Pool heaters shine in extending usability from spring through fall, especially in variable climates. Use them for family swims on cooler evenings, therapy sessions in spas, or preparing for pool parties. Natural gas models like these provide superior heat output compared to electric alternatives, with lower long-term operating costs. They're also a staple in the broader Heaters & Accessories range, complementing filters, covers, and pumps for complete pool maintenance.

Installation typically requires professional plumbing and venting, but Raypak's designs simplify the process with modular components. Regular maintenance—like annual inspections—keeps them running optimally, often backed by strong warranties.

Frequently Asked Questions

What BTU pool heater do I need for my pool size?

Rule of thumb: 50-100 BTU per square foot of pool surface. For example, a 400 sq ft pool might need 200,000-400,000 BTU. Consult a sizing chart or professional, considering factors like cover usage and location.

Are Raypak pool heaters compatible with all pool types?

Yes, these natural gas heaters work with inground, above-ground, and spa systems. Ensure proper gas line sizing and venting per local codes.

What's the difference between copper and Cupro-Nickel heat exchangers?

Copper is standard and cost-effective; Cupro-Nickel offers superior corrosion resistance for saltwater or high-chlorine pools, extending lifespan in tough conditions.

How do I maintain my Raypak pool heater?

Flush the system seasonally, check ignition annually, and inspect for leaks. Raypak provides detailed manuals; professional servicing is recommended yearly.

Can I use these heaters year-round?

In mild climates, yes—but winterize by draining and covering in freezing areas to prevent damage. They're optimized for seasonal extension rather than constant use.

Ready to heat up your pool? These Raypak heaters, nestled in our Patio, Lawn & Garden essentials, deliver unmatched reliability. Compare models and find your match today.