Pentair Sta-Rite Max-E-Therm 400 HD Natural Gas Pool & Spa Heater | SR400HD

Pentair Sta-Rite Max-E-Therm 400 HD Natural Gas Pool & Spa Heater | SR400HD

Pentair Sta-Rite Max-E-Therm 400 HD natural gas pool and spa heater with cupro-nickel exchanger, digital controls, and 400,000 BTU output.

Features

• 400,000 BTU natural gas heater for fast pool and spa heat-up.
• HD model with cupro-nickel heat exchanger for tougher water conditions.
• Digital controls for simple temperature adjustment and monitoring.
• 120/240 VAC operation for standard equipment-pad power setups.
• Heavy-duty Max-E-Therm platform for higher-demand installations.

Description

The Pentair Sta-Rite SR400HD is the heavy-duty Max-E-Therm 400 natural gas heater made for pool and spa systems that need serious heat output and a more durable exchanger than the standard version. With 400,000 BTU capacity, digital controls, and a cupro-nickel heat exchanger, it is built for fast recovery and longer-term durability in tougher water conditions. This is the HD natural gas model, not the standard SR400NA.

Pro Tip

Before ordering, verify gas line sizing, electrical service, installation clearances, and water chemistry. A heater this size should be installed and serviced by a qualified professional.

Installation Tips

Install only on a properly prepared pad with the required service and venting clearances. Confirm natural gas supply, voltage, and circulation requirements before startup, and follow the Pentair installation manual exactly.

We want you to have quick and easy access to warranty information for all the brands we carry. Please click on the links below to view each manufacturer’s warranty page:

• Pentair Warranty
  
• A&A (Pentair In-Floor) Warranty
  
• Fluidra Warranty (Zodiac / Jandy / Polaris / Caretaker)
  
• Paramount Warranty
  
• BlueSquare Warranty
  
• Hayward Warranty
  
• All Other Manufacturer Warranties
  

Note: Warranty coverage, registration, and service terms are provided directly by the manufacturer. Please review the details carefully to ensure proper understanding of coverage and claim procedures.