Pentair | 461021 | MasterTemp HD 400K BTU ASME Natural Gas Pool Heater – High Performance, Energy Efficient

The Pentair 461021 MasterTemp HD 400,000 BTU ASME Natural Gas Pool Heater delivers powerful, reliable heating for large pools. ASME certified for commercial-grade safety and energy-efficient operation.

Key Features

• 400,000 BTU Heating Capacity – Provides robust heating for large residential and commercial pools

• ASME Certified – Meets stringent commercial safety and construction standards

• Natural Gas Operation – Efficient and consistent fuel source for sustained heating

• High-Performance Design – Rapid heat-up and sustained temperature control for demanding environments

• Energy Efficient – Optimized for fuel savings without sacrificing power

• Durable Construction – Built to withstand rigorous use and harsh outdoor conditions

• Digital Controls – User-friendly interface for precise temperature adjustment and system diagnostics

Product Overview

The Pentair 461021 MasterTemp HD 400K BTU ASME Natural Gas Pool Heater is engineered for high-capacity heating applications in both large residential and commercial pool settings. Its ASME certification ensures compliance with commercial-grade safety and durability requirements, making it a reliable choice for demanding environments.

Operating on natural gas, this model provides efficient, consistent heating with a powerful 400,000 BTU output. Its high-performance design delivers rapid warm-up times and steady temperature maintenance to keep pools comfortable even during heavy use.

Constructed for long-lasting durability, the MasterTemp HD 461021 withstands outdoor exposure and heavy operational cycles. The digital control system offers straightforward temperature management and diagnostic capabilities to simplify maintenance and optimize performance.

For pool operators seeking a robust, energy-efficient heating solution with commercial certification, the Pentair 461021 MasterTemp HD provides dependable power and peace of mind.