The Pentair EC-462025 MasterTemp 125 High Performance Heater is a 125,000 BTU propane-fired pool and spa heater engineered for compact residential applications. Designed with induced-draft combustion and hot surface ignition (HSI), this unit provides reliable startup and efficient heat transfer without a standing pilot. Its lightweight, corrosion-resistant cabinet and digital control interface support dependable outdoor installation and consistent water temperature management.
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Key Features
• 125,000 BTU propane heater designed for residential pools and spas.
• Induced-draft combustion system for stable and efficient burner operation.
• Hot surface ignition eliminates standing pilot for improved reliability.
• Digital control panel with full-text display for temperature and diagnostics.
• 120/240 VAC, 60 Hz single-phase electrical compatibility.
• Integrated safety devices including high limits, air flow switch, and stack flue sensor.
• Compact cabinet approximately 21" x 23" x 29" for space-efficient installation.
• Compatible with Pentair automation systems for coordinated control.
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Product Overview
The Pentair EC-462025 MasterTemp 125 Propane Heater is engineered to deliver dependable and efficient heating for smaller residential pools, spas, and above-ground installations. With a 125,000 BTU input rating, this model provides effective heat recovery while maintaining approximately 82–84% thermal efficiency. The blower-assisted combustion system ensures proper air-to-fuel mixture, while the hot surface ignition system enhances safety and operational consistency.
Constructed with a corrosion-resistant composite exterior, the MasterTemp 125 is designed for long-term durability in outdoor environments. The integrated digital control panel allows precise temperature adjustment and system monitoring, while internal safety interlocks protect against improper operation. Designed for propane gas applications, the EC-462025 connects directly to standard pool plumbing configurations and supports integration with Pentair automation systems for convenient, centralized pool management.