The Raypak 156A Natural Gas Pool Heater delivers fast, reliable heating for larger above-ground pools, spas, and select inground pool installations—without unnecessary complexity. With a powerful 150,000 BTU output, this unit produces significantly more heat than typical above-ground heaters, allowing you to open earlier, swim longer, and enjoy consistent water temperatures throughout the season.

Designed specifically for low-altitude installations (under 2,000 ft), the Raypak 156A uses a natural draft, outdoor-rated design that performs reliably in wind, rain, and cooler weather conditions. If quick heat-up and durability are priorities, this heater is built to meet those demands.

Why Choose the Raypak 156A?

• Faster Heat-Up Performance
  Higher BTU output means less waiting and more swim time—ideal for larger above-ground pools and spa applications.

• All-Copper Heat Exchanger
  A single-piece extruded copper fin-tube design maximizes heat transfer while resisting corrosion and scale buildup when water chemistry is maintained correctly.

• Polymer Headers
  Rust-free polymer headers protect your pool surface from staining and extend the life of the heater.

• Wind-Resistant Outdoor Design
  The low-profile cabinet drafts naturally—no fans required—maintaining stable performance in wind, rain, falling debris, or snow.

• Durable PolyTuf Cabinet
  A textured, non-corrosive powder-coated cabinet and galvanized undercarriage provide long-term protection against rust and harsh outdoor conditions.

• Advanced Digital Controls
  Raypak’s proprietary AFT digital control system manages ignition, flame supervision, safety monitoring, and diagnostics for dependable operation.

Installation & Connection Details

• Gas Type: Natural Gas

• Water Connections: 2" slip-fit PVC unions (included)

• Electrical: 120V with factory-installed 3-prong, 3-ft power cord

• Venting: Outdoor use only

• Maximum Elevation: 2,000 ft (Low Altitude Only)

• Dimensions: 32" L × 16" W × 30" H

Important Compatibility & Warranty Notices

Altitude Restriction
This is a low-altitude heater and will NOT operate correctly above 2,000 ft. Installation above this elevation is not supported.

Soft-Sided Pool Warning
This heater is NOT compatible with soft-sided pools such as Intex®, Coleman®, or Bestway®. These pools do not provide sufficient water flow.
Installing this heater on a soft-sided pool will void the manufacturer’s warranty.

Professional Installation Required
Warranty coverage requires installation by a licensed technician. Damage caused by improper water chemistry or incorrect installation is not covered.

Warranty Coverage

• Warranty Period: 1 year from purchase date

• Coverage: Replacement parts and labour (at manufacturer’s discretion)

• Conditions:

  • Must be professionally installed

  • Must be used with a compatible pool or spa

  • Proper water chemistry must be maintained

Refer to the manufacturer’s manual for full warranty terms and conditions.

Best For

✔ Larger above-ground pools - up to 24ft round
✔ Spas and select inground pools
✔ Homeowners wanting fast, reliable heat
✔ Installations under 2,000 ft elevation