Pentair 460736 MasterTemp, Low NOx, 400,000 BTU, Natural Gas, Pool and Spa Heater

SKU: 460736
Pentair MasterTemp Natural Gas Heater
Regular Price: $2,969.99
Availability: In Stock
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About the Pentair 460736
The Pentair MasterTemp 400N sets the bar in efficient pool and spa heating

Pool Heater Features:

  • Compatible with EasyTouch automation system
  • Suitable for pool and spa applications
  • 400,000 BTU
  • Natural gas
  • Dimensions: 21”L x 21”W x 28”H
  • Compact design
  • Energy efficient
  • Rotating digital display
  • Certified for low NOx emissions
  • Approved for installation on combustible surfaces


Control Panel

Control Panel

Featuring an easy-to-read display and LED indicators, the control panel simplifies temperature regulation with its adjustment capabilities and self-diagnostic readings
Easy to Install or Retrofit

Easy to Install or Retrofit

It features a rotating digital display, designed to allow more installation options for convenience, and its compact design is great for tight, often unused spaces

More Information

The Pentair MasterTemp 400N sets the bar in efficient pool and spa heating. With a compact design composed of corrosion-proof exterior materials, this heater easily fits on any equipment pad and is durable enough to withstand the harshest weather elements. Eco-friendly and energy efficient, the MasterTemp is certified for low NOx emissions and operates quietly for optimum performance.

The MasterTemp heater features a hot surface ignition and user-friendly controls for easy operation. Built with safety in mind, the MasterTemp is equipped with a water pressure switch, high limit switch, and stack flue sensor to prevent overheating. This natural gas heater uses 400,000 BTU, and heats up quickly to reach and maintain comfortable swimming water temperatures.

Pentair 460736 Specifications



Product Reviews
Average Rating:
2.67 average based on 3 reviews
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Sanford said:
Location: Knoxville, TN
10 years and counting
10 months ago
I have two Pentair heaters, a 400 KBTU for the pool and a 250KBTU for the spa....the spa heater lasted 8 years and the pool heater is still going after 10 years. The only issue I have had is the remote control I bought with them is often not calibrated accurately and the remote display and the heater display don't jibe which makes getting the temp right can be frustrating. But as far as the noise level, it is very quiet...they are both about 30 feet from the pool and spa behind a brick wall and .. more
+3 | -0
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Keith G. said:
2 years ago
On the website and in the brochure this heater is advertised to be the quiet. In fact, it mentions how quiet it is three times. When you advertise that "Master temp is engineered for super-quiet operation and won't intrude on your poolside leisure time". Then in my book it would mean quiet. This heater is so loud that I can hear it in my house which is 75 feet away from the heater. The company doesn't care and just says this is a real quiet heater. BUYING THIS HEATER IS A MISTAKE AND .. more
+31 | -5
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Martin M. said:
3 years ago
NOt a big fan of this heater. I redid my pool pad back in July. I have had to have a servicer out twice over the past 7 months because the heater would not fire up. Once they get it working it heats fine. But overall I am not very happy. Two issues in 7 months has me pretty frustrated. I should have stuck to my original brand of heater (h400). I had it for 11 years and it worked great until it just finally wore out. My servicer recommended the Pentair Heater because it was light and easy to move. .. more
+30 | -1
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