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Pentair MasterTemp Natural Gas Pool Heater 400k BTU

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Price in points: 100980 points
I acknowledge that all natural gas and propane heaters are final sale and must be installed by a certified gas technician; self-installation can void manufacturer's warranty.

Quick Overview

Pentair EC-462028 Master Temp Low Nox Natural Gas Heater 400k BTU (Alternative Part Number 460736)

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Pentair MasterTemp 400k BTU Natural Gas Pool Heater

During the first few weeks of the summer season, it can be difficult to be patient as you wait for your pool to be ready to swim in. When your water is icy cold, the pool can be off putting to even the most avid swimmers, and can shorten your swimming season significantly.

If you love the summer sun, adding a heater to your pool is among the best ways to get more out of the summer season, and enjoy more weeks of swimming each year. With the Pentair Master Temp heater, you can heat your pool reliably and affordably.

Why choose the Pentair Natural Gas Heater?

Pentair is a trusted name in residential pool heating, and has been providing warm and efficient heat for pool owners across North America for years. Pentair goes above and beyond in innovation and design, improving with each iteration of their natural gas heater.

The Pentair natural gas heater has been designed for ultra-affordable operating costs, with an efficiency rating of up to 84. This ensures that your pool heating is affordable, and environmentally friendly. Replacing a pool heater can also be an enormous cost, and Pentair has designed the Master Temp heater to be able to withstand the tough outdoor conditions of your pool. This heater can withstand harsh pool chemistry, moist conditions, and windy weather without corrosion. These durable features ensure that your heater lasts longer, performs better, and provides the heat you need, when you need it.

Powerful and Efficient Heating for your Pool

Operating a pool each summer is already a big expense. When you decide to add a heater to your pool, it is a decision that you should make carefully. With the right pool heater, you can extend the swimming season by weeks, and encourage your family to spend more time outdoors and active each summer.


  • Alternative Part Number 460736
  • Heats up fast so no long waits before enjoying your pool or spa
  • Best-in-class energy efficiency*
  • Manual gas shut-off when service is required
  • Eco-friendly MasterTemp® is certified for low NOx emission and outperforms industry standards
  • Rotating digital display allows for easy viewing
  • Tough, rustproof exterior handles the heat and weathers the elements

Note: The MasterTemp Heater is certified for Low NOx emissions.
* Standard Copper Heat Exchanger 84% Efficient.
Heavy-duty (HD) Cupro-Nickel Heat Exchanger 82% Efficient.

Manufacturer Warranty: 1 Year

Dual Voltage
Heater Fuel:
Natural Gas
Heater Pool Type:

NOTE: Product images are for illustration purposes only and may not exactly match the actual product due to seasonal model, color or design changes. When shopping for parts we strongly recommend to check the SKU or "Part Number" which is listed on each product page. If you are unsure whether this is the correct product or need assistance please contact us.