MasterTemp Heater 400,000 BTU - NG w/ Electric Ignition Low NOx HD - 460805



Part # 460805

By Pentair Pool Products



Part # 460805

Warranty 2 Years

Product Description

The MasterTemp High Performance Heaters offer all the efficiency, convenience, and reliability features you want in a pool heater, plus a lot more. As easy to use as your home heating system, plus, user-friendly indicator lights and troubleshoot icons makes system operations and monitoring a snap. The compact design and super-quiet operation won't intrude on your poolside leisure time. 

Heavy-Duty (HD) unit with cupro-nickel exchanger stands up to the harshest of applications, like low pH, high flow or heavy use.


  • Superior “Best-in-Class” energy-efficiency
  • Rotating digital display allows for easy viewing, rotate to 3 positions so there’s no need to reverse the header, simplifying installation
  • Quick-change orifice allows easy conversion of gas sources
  • Compact design (21" L x 21" W x 28" H) is easy to retrofit, no matter what the space challenges
  • Tough, rustproof exterior handles the heat and weathers the elements
  • Built-in carrying handles for easy transport
  • Certified for outdoor and indoor installation
  • Certified for Low NOx emissions

Standard copper heat exchanger 84% efficient. Heavy-duty (HD) cupro-nickel heat exchanger 82% efficient.

Product Specifications

0-9,000 ft.
400,000 BTU
Special Feature:
Low NOx Emission
Heat Exchanger:
Cupro Nickel

?     Asked on 6/15/2020 by Ron

Can this unit be vented out the the back of the unit so it can be ran vertical ?

A  Answered on 6/15/2020 by InyoPools Product Specialist Lennox H.

Hi, Ron. This unit can be vented vertically or horizontally. Reference the sections in the MasterTemp Installation and User Manual that best fit your application. 

?     Asked on 6/6/2020 by Mike

Hello, Do you have this unit in stock? Thank You

A  Answered on 6/9/2020 by InyoPools Product Specialist Hector F.

Yes, this model Pentair heater is currently in stock. 

?     Asked on 6/1/2020 by Mike

Hello, Do you have the Pentair model 460805 in stock? If so, do you charge tax and shipping? I'm located on Long Island, NY. Thank You

A  Answered on 6/10/2020 by InyoPools Product Specialist Hector F.

Yes, we have these units in stock with free shipping and there is tax. Once you add the unit to your cart you can add your shipping zip code for the approximate estimate. 

?     Asked on 3/26/2020 by Philip Coles

We are considering building a new pool and are looking at various options, we live in rural Connecticut. We currently have a salt water pool and use a heat pump. If we were to use a MasterTemp heater, can we still use a salt system as the sanitizer? Does it effect the heater? Thanks Philip Coles

A  Answered on 3/31/2020 by InyoPools Product Specialist Matt S.

The MasterTemp Heater 400,000 BTU - NG w/ Electric Ignition Low NOx HD - 460805, uses a heavy-duty Cupro-Nickel heat exchanger making it ideal for a saltwater pool.

?     Asked on 6/17/2019 by Jennifer George

Hi, how does this compare to the Jandy JXI 400? This seems to be out of stock at the vendor and I am looking for a replacement.

A  Answered on 10/2/2019 by InyoPools Product Specialist Steve M.

Jennifer, the Pentair Pool Products MasterTemp Heater 400,000 BTU - NG w/ Electric Ignition Low NOx HD has a comparable BTU output the Jandy JXI 400. The Pentair unit has a slightly higher heater efficiency, and in my opinion, it is a higher quality unit. 

?     Asked on 4/29/2019 by ELIZABETH HOEKSTRA


A  Answered on 4/30/2019 by InyoPools Product Specialist Patrick P.

Hi Elizabeth, this heater weighs 136 lbs.

?     Asked on 8/29/2017 by Bob

Does this model heater have a conversion to propane?

A  Answered on 8/29/2017 by InyoPools Product Specialist Lennox H.

Hi, Bob. You can use the NG To LP Conversion Kit For 400 - 77707-1441 with this unit.

?     Asked on 6/21/2017 by

does this unit have a dual thermostat?

A  Answered on 6/21/2017 by InyoPools Product Specialist Patrick P.

Yes the Pentair MasterTemp has dual temperature controls, one to set your pool temp. and the second to set your spa temp.


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