Pentair MasterTemp 250 Low-NOₓ Natural Gas Heater | EC-462026

Pentair MasterTemp 250 Low-NOₓ Natural Gas Heater

High-output 250,000 BTU low-NOₓ heater for pools and spas, SKU EC-462026.

Features

• 250,000 BTU/hr capacity — powerful and efficient heating.
• Low-NOₓ emissions — meets stringent environmental standards.
• Copper heat exchanger for reliable thermal performance.
• Rotating digital LCD controller for easy monitoring and control.
• Hot-surface ignition — no pilot light needed.
• Compact, UV- and corrosion-resistant enclosure.

Description

The Pentair MasterTemp 250 (SKU EC-462026) delivers high-performance heating with 250,000 BTU/hr, making it ideal for large or heavily used pools. Certified as a low-NOₓ unit, it supports cleaner combustion while maintaining strong heating output. The copper heat exchanger offers reliable, efficient heat transfer, and the hot-surface electronic ignition ensures quick, dependable startup. Its user-friendly rotating digital LCD control panel makes programming and diagnostics simple, while the compact, durable housing allows versatile installation.

Pro Tip

Install a smart heater bypass valve kit to throttle the heater during mild days — this reduces gas use and stress on the unit.

Related Parts

• Pentair MasterTemp 125 High-Performance Pool & Spa Heater – Natural Gas | EC-462024
• Pentair MasterTemp High Performance Pool and Spa Heaters 400NA (Natural Gas) | EC-462028
• Pentair NG to Propane Conversion Kit (Model 250) | 460741
• Pentair INTAKE AIR KIT | 461031

Installation Tips

Must be installed by a qualified, licensed technician. Ensure proper gas line sizing, venting, and electrical supply per local codes. Use a Carbon Monoxide detector for indoor or enclosed installations.

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.