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Home Pentair MasterTemp Low NOx Heater - Electronic Ignition - HD Cupro Nickel - Natural Gas - 400K BTU ASME - 461021
NOTICE: The pool & spa industry continues to face industry-wide shortages on many products that most vendors expect to last late into 2022. We're allowing items to be purchased so that customers who choose to wait will have their order shipped when product is available. Most vendors are not providing any ETA on when items will be available. WE WILL EMAIL YOU RIGHT AWAY IF YOUR ITEM IS BACKORDERED. 

Pentair MasterTemp Low NOx Heater - Electronic Ignition - HD Cupro Nickel - Natural Gas - 400K BTU ASME - 461021

Pentair MasterTemp Low NOx Heater - Electronic Ignition - HD Cupro Nickel - Natural Gas - 400K BTU ASME - 461021 Pentair MasterTemp Low NOx Heater - Electronic Ignition - HD Cupro Nickel - Natural Gas - 400K BTU ASME - 461021 Pentair MasterTemp Low NOx Heater - Electronic Ignition - HD Cupro Nickel - Natural Gas - 400K BTU ASME - 461021
$3,684.81

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Platinum Preferred Manufacturer
  • Brand New HD Cupro Nickel ASME Pentair Heater Released 2013
  • Heats Up Fast so No Long Waits Before Enjoying your Pool or Spa while Achieving Best-In-Class Efficiency.
  • Rotating Digital Display Allows for Easy Viewing.
  • Tough, Rust Proof Exterior Handles the Heat and Weathers the Elements.
  • For Propane Use the Gas Conversion Kit
  • Improved Resistance to Rodent Intrusion
Purchase Options
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OVERVIEW
Ultra-High Performance in a Compact, Quiet & Eco-Friendly Design
 
MasterTemp 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 make system operation and monitoring a snap. The compact design and super-quiet operation won't intrude on your poolside leisure time. 
 
MasterTemps easy-to-read controls make system operation and monitoring simple. Pool and spa temperatures can be pre-set and controlled with the push of a button. A digital display indicates the water temperature, and five LED lights give you system status and let you know if the heater needs service.
 
New Improved Rodent Resistance for the MasterTemp High Performance Heater
 
The engineers made improvements to reduce gaps and eliminate access points, including advancements to the heater base, all exterior side panels and louvers, the gas valve and water manifold openings, the exhaust opening and the exhaust cover. These subtle, but important, design changes add up to a better heater, from every angle.
 
In addition to the new rodent resistant improvements, the features and benefits of a MasterTemp High Performance Heater include:
  • Enhanced LCD display and diagnostics include easy to display and front-facing error messages and icons
  • Best-in-class energy efficiency
  • Eco-friendly certified for low, NOx emission and outperforms industry standard
No matter what you're seeking in your swimming pool heater, MasterTemp measures up. Compare this list of features to any other and you'll see why MasterTemp is setting a new standard for total value:
 
Features:
  • Very compact design for such a high performance heater allows for smaller overall equipment pads that won't intrude on your poolscape.
  • Easy to install or retrofit in even the tightest spaces.
  • A fully pre-mixed system with a highly efficient air and gas mixture lets MasterTemp heat up fast. No long waits before enjoying your pool or spa.
  • Compare energy efficiency ratings and you'll find MasterTemp at the top of the list. Comfort and economy can go together.
  • With a hot surface ignition (no pilot light) and pushbutton, digital controls, MasterTemp is as easy to operate as your home heating system. Plus, user-friendly indicator lights make system operation and monitoring a snap.
  • The easy-to-view, rotating digital display places controls front and center, no matter how MasterTemp is positioned on your equipment pad.
  • MasterTemp is engineered for super-quiet operation and won't intrude on your poolside leisure time.
  • A tough, composite exterior handles the heat and weathers the elements.
  • Safe operation is assured through a series of features, including; a water pressure switch that senses the pump is running to prevent overheating; high limit switches assure the heater turns off if water temperature exceeds factory set limits; manual gas shut-off when service is required; stack flue sensor also guards against overheating.
  • Approved for installation on combustible surfaces.
Why MasterTemp Heaters are the "Greenest" Choice
 
An Eco Select Brand: MasterTemp Heaters offer best-in-class energy efficiency. Plus, they are certified for low NOx emissions, making them eco-friendly favorites. In fact, MasterTemp outperforms current industry standards for air pollution exhaust.
 
The Eco Select Brand identifies Pentair's "greenest" and most efficient equipment choices. These products save energy, conserve water, eliminate noise or otherwise contribute to a more environmentally responsible equipment system.
 
As the global leader in pool and spa equipment manufacturing, Pentair strives to provide greener choices.
 
 
Specifications:
Brand Pentair
Sub Brand MasterTemp
Item Low NOx Pool and Spa Heater
Type High Performance, Heavy Duty
Gas Type Natural Gas
Control Type Digital
BTUH Input 400,000
Cabinet Width 23.02"
Cabinet Depth 32.61"
Cabinet Height 28.15"
Gas Connection 3/4"
Water Connection 2"
Voltage Rating 120/240 VAC
Frequency Rating 60 Hz
Phase 1-Phase
Flow Rate 120 gpm


Brand: Pentair
SPECIFICATIONS
BTU Rating
400K
Gas Type
Natural Gas
Location
Indoor/Outdoor
Elevation
0-9000'
Ignition
Electronic
Q & A
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 8 questions Browse 8 questions and 10 answers
I bought this heater as a replacement in kind, except it was not the HD Cupro Nickel and the model replaced had a plastic manifold, the HD has a bronze manifold. With this unit I purchased the Connector Tube Kit 77707-0001 which is plastic. This plastic fitting does not thread into the bronze manifold thread. Do I need a bronze Connector Tube Kit? The plastic cross threads into the bronze manifold, it is not the same cut of thread and does not work.
Mark J on Apr 16, 2018
BEST ANSWER: I bought regular 2” threaded pvc fittings from local hardware store to connect mine. Appears to be NPT.
Are plumbing connections correct for replacing a 460805?
A shopper on Apr 26, 2018
BEST ANSWER: I am replacing with the exact same one so my plumbing connects are correct.
What are the water piping connections on this heater - the pic for model 461021 appears to show female pipe thread - is it 2" NPT??
David V on Aug 28, 2017
BEST ANSWER: Yes, That is correct. I would use a 2" MIP CPVC nipple to make the connections from the heater to pvc. #517405
Will this work for a pool with 20000 gallons of water?
Jacob E on Jun 1, 2021
BEST ANSWER: Yes it should work fine. A quality product and performs very well.
can you reverse header on this heater?
Mark B on Aug 23, 2017
BEST ANSWER: For Pentair heaters, they are able to change the side of the headers by removing the top and flip to other side. We are unable to do the switch for you but you or the installer would be able to do it. Thank you.
I have 400 dv is it similar?
A shopper on May 20, 2016
BEST ANSWER: It appears to be but I am not home. I will look at mine tonight.
heater does not ignite. we have power and the water flow. do we havea switch for natural gas vs propane?
jay d on May 27, 2016
REVIEWS
4.5 / 5.0
2 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
1
1
0
0
0
Rated 4 out of 5
Four Stars
Before you buy this heater, make sure you have the propane capacity to supply this heater. Other than that, very satisfied with the performance of the heater!<br>
June 11, 2015
Rated 5 out of 5
Best pool Heater I have owned
Operates flawlessly but since I live in Arizona, I wish it also had an attached water cooler feature as well.... :)
August 21, 2016
Purchased
over 6 years ago
RESOURCES
WARRANTY
You've always been able to count on the quality and long service life of Pentair products. Pentair uses state of the art workmanship, materials and manufacturing processes to create the most innovative pool and spa equipment anywhere. And now Pentair products can deliver even more value and peace of mind, because Pentair offers extended warranty coverage on select products that are installed by a qualified installer*.
 
While the majority of Pentair products are covered by a sixty- (60) day warranty, a select number of products qualify for extended warranty coverage.
 
Select Bundled Products: applies to purchases and qualified installation of a minimum of a pump and filter, and one or more of the following: heaters, heat pumps, control systems, automatic cleaners, lighting, salt chlorine generators or UV sterilizer**
 
*Note: Qualified Installer - Defined as a licensed professional who charges a fee for his services, and possesses a business license, contractor's license and/or resale permit. Common examples of a "qualified installer" include: Swimming Pool, Home Repair or Landscape Professional; Plumber or Electrician; General Contractor; Heating and Air Conditioning Specialist.
 
**Note: Bundled products - must be purchased on the same invoice and installed at the same time. If any product within a bundle is ineligible for the bundled warranty coverage then all products within the same bundle will be disqualified from receiving the three (3) year extended warranty coverage for bundled products.
 
TradeGrade products must be purchased from a retail store (brick & mortar), pool builder or pool service company to receive a one-year, two-year or three-year warranty. If purchased online will only receive a sixty-day limited warranty. View the list of TradeGrade Products.
 
Ecommerce (EC) products: Products purchased from an Authorized Pentair Online Reseller (products beginning with EC-) receive a one (1) year (parts only) warranty from the date of purchase. The exceptions are: IntelliChlor cells and IntelliFlo SVRS pumps which receive a two (2) year warranty. EC products are not eligible for the bundled three (3) year extended warranty.
 
Visit www.pentair.com to submit your product warranty registration.
 
This information was updated on 11/19/2021. For the most current information and full warranty policy please visit www.pentair.com/warranty.


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