Pentair Mastertemp 400 Gas Heater - Natural Gas

Pentair MasterTemp 400 Natural Gas Pool Heater

The Pentair MasterTemp 400 is a compact, high-performance natural gas pool heater engineered for fast heat-up, quiet operation, and long-term reliability. Its fully pre-mixed combustion system delivers exceptional fuel efficiency — so your pool reaches temperature faster and stays there for less.

Key Features

• Hot surface ignition — no pilot light required for reliable, instant start-up
• Super-quiet operation — whisper-quiet enough for tight installations near living areas
• Low NOx certified — outperforms Australian emissions standards
• Rustproof composite cabinet — built to withstand outdoor heat and weather
• Low flow rates required — compatible with a wide range of pool pump setups
• Rotating digital display — easy to read regardless of installation orientation

Resources

• Pentair MasterTemp 400 Brochure (PDF)
• Pentair MasterTemp 400 Installation & Owner's Manual (PDF)
• Pentair MasterTemp 400 Dimensions Diagram

Frequently Asked Questions

What size pool is the MasterTemp 400 suitable for?

The MasterTemp 400 (400,000 BTU/hr) is suited to pools up to approximately 130,000 litres, making it ideal for large residential and small commercial pools in Australia.

Does the Pentair MasterTemp 400 require a pilot light?

No. The MasterTemp 400 uses an electronic hot surface ignition system, eliminating the need for a standing pilot light for safer, more efficient operation.

Can the MasterTemp 400 be installed in a small space?

Yes. Its compact footprint and super-quiet motor make it one of the most installation-flexible gas pool heaters available, suitable for tight equipment bays and residential backyards.

Is the MasterTemp 400 compatible with natural gas and LPG?

This model is configured for natural gas. An LPG conversion version is also available — contact us if you require LPG.