Home Pool Pool & Spa Heaters Pentair & Sta-Rite Pool & Spa Heaters Pentair MasterTemp Low NOx Pool & Spa Heater - Dual Thermostat - Electronic Ignition - Natural Gas - 175,000 BTU - 460792

Pentair MasterTemp Low NOx Pool & Spa Heater - Dual Thermostat - Electronic Ignition - Natural Gas - 175,000 BTU - 460792

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Pentair MasterTemp Low NOx Pool & Spa Heater - Dual Thermostat - Electronic Ignition - Natural Gas - 175,000 BTU - 460792 Pentair MasterTemp Low NOx Pool & Spa Heater - Dual Thermostat - Electronic Ignition - Natural Gas - 175,000 BTU - 460792 Pentair MasterTemp Low NOx Pool & Spa Heater - Dual Thermostat - Electronic Ignition - Natural Gas - 175,000 BTU - 460792

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Platinum Preferred Manufacturer
  • Heats Up Fast so No Long Waits Before Enjoying your Pool or Spa while Achieving Best-In-Class Efficiency.
  • High Efficiency Rating Makes these Heaters Extremely Economical to Operate.
  • Rotating Digital Display Allows for Easy Viewing.
  • Tough, Rust Proof Exterior Handles the Heat and Weathers the Elements.
  • Improved Resistance to Rodent Intrusion
 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:
  • 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.
Brand Pentair
Sub Brand MasterTemp
Item Low NOx Pool and Spa Heater
Type High Performance
Gas Type Natural Gas
Control Type Digital
BTUH Input 175,000
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

Pentair Sta-Rite Metal Flue Collar for Indoor Venting 4x6 | 77707-0076
Indoor Venting Metal Flue Collar 4"x6" | 77707-0076

Pentair Sta-Rite Metal Flue Collar for Indoor Venting 4x8 | 77707-0077
Indoor Venting Metal Flue Collar 4"x8" For distances over 8' | 77707-0077

Q & A
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 19 questions Browse 19 questions and 31 answers
Why did you choose this?
Pool Supply Unlimited Store
This was the size and price I was looking for.
Rory V on Oct 1, 2018
because my local pool company services this unit.
Joe H on Jun 8, 2018
This was the size and price I was looking for.
Rory V on Oct 1, 2018
Fast and easy to order from
Brandon K on Sep 24, 2018
because my local pool company services this unit.
Joe H on Jun 8, 2018
Recommended by friend.
Dan R on Jun 4, 2018
cost and natural gas
Tom V on Feb 12, 2018
Yes, recommended by Rep.
Virginia V on Aug 23, 2017
Was not happy with my last heater and received good feedback on this model from a friend.
Ray O on Apr 20, 2017
Good price point for this pool heater
Robert J on Mar 17, 2017
best price and best overall reviews for this product for use in a medium sized spa.
Dan D on Nov 23, 2016
Product quality.2 year warranty if installed by licensed contractor and great cost
Ronald H M on Oct 5, 2016
like replacement.
John L on Jun 30, 2016
Perfect size for inground pool and Pentair reputation.
Elizabeth G on May 31, 2016
Fast and easy to order from
Brandon K on Sep 24, 2018
Recommended by friend.
Dan R on Jun 4, 2018
my above ground pool is 15x30x4 what size heater do you recommend?
charlie on May 6, 2016
i had a top vented heater for my indoor pool . does this heater vent from the top or side ( 175,000 btu pentair ) ?
roc b on Jun 16, 2016
The heater turns on and in 6-10 secs. the temp. goes up and shaking and shuts off. Is the heating unit clogged?
A shopper on Aug 9, 2016
BEST ANSWER: The temp rapidly rising and shutting off sounds like a high limit switch has gone bad. Not sure what the shaking could be. I would recommend getting a licensed technician out to look at your heater.
A shopper on Mar 31, 2016
BEST ANSWER: Thought that pool supply or Pentair had a chart on their site for above ground or in ground pools.that I used. From memory I got a slightly larger one just to speed up the process. I also have solar panels that help pre heat the water. You can always call Pentair direct. They always seem very help full.
I currently have a propane heater that needs to be replaced. Can this heater be used with propane?
Jeff H on Mar 12, 2017
BEST ANSWER: Yes it can but you would have to buy the propane model or conversion kit.
By pool Is 40 by 10 by 5 what heater size and what warranty comes with it?
Maurice on May 31, 2016
BEST ANSWER: This unit should work for your size pool, it is 175K BTU heater. I have this heater, my pool is only 21' round but I know this is over kill for mine but this unit has a 2 year warranty unlike most heaters.
spa heating only?
A shopper on Jan 2, 2017
BEST ANSWER: No, this heater is for both pool and spa. I use it on a 24' round above ground. It has been a great heater. Going into its third season.
what size gas pipe is required?
Randy o on Nov 7, 2016
BEST ANSWER: 3/4 should be fine but a lot of it depends on the distance the heater is from the main gas line
Can this heater be converted to LP?
aaron h on May 17, 2018
They make a model for LP
installation cost?
David S on May 8, 2016
BEST ANSWER: They charged me $200 to install. Still cheaper than what they were going to charge me to buy through them.
how to heat spa and flow over in to the pool ?
Jackie T on Dec 15, 2015
BEST ANSWER: That would be determined by how your pool system is plumbed.
A shopper on Nov 3, 2015
BEST ANSWER: The HD model will indicate the Heavy Duty Cupro Nickel heat exchanger.
Can I hook up my electronic valve actuators directly to this heater ?
Eddie on Apr 17, 2019
I currently have Pentair master400 for my spa, rats have chewed up the wiring. Should I try to re-wire or replace whole unit? And to replace, do you have anyone that can install?
A shopper on Mar 8, 2019
which model is good for 22000 gallons pool ?
AINALAKIS g on Aug 19, 2017
Love my Pentair Master Temp heater , but the heater service light went on and I cant turn heater off. it's stuck with the spa heater on at 80 degrees. Can you tell me what I should do ? I had my pool guy look at it and he is puzzled.
mark f on Jun 23, 2017
heater wont stay on what doe E05 mean?
Dave P on Apr 1, 2017
4.6 / 5.0
9 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Reliable heater
The electronic display really helps me to understand how to use it. My water heats up quickly so I've saved on my gas bill. Positive outcome from this purchase.
March 7, 2016
High Performance
This is a real plus in my book. Ive been in the pool industry for quite some time and this Pentair heater has a reputation for being one of the best on the market. This product arrived on time and as expected. It puts off a little odor while it primes the heater, but its not that bad, and if youre not right on top of it, you probably wont notice it. So far, it works great and heats FAST best of all.
June 3, 2016
Best thing I ever did is purchase this heater works great and heats up my pool quickly
January 2, 2017
over 4 years ago
Excellent Heater
Excellent Heater with electronic ignition. Heater arrived before promised!
October 24, 2016
over 2 years ago
Thanks neighbor
My neighbor has one of these and recommended I get this heater from you guys. It's been doing an outstanding job. Thank you for a reliable product. And thanks to your customer service for answering all my questions.
June 7, 2016
Good Buy
Great heater for space-challenged areas. Relatively easy to install and works great. I appreciate the large digital display which makes it quick and easy to read.
July 9, 2014
What an awesome heater! Literally brought the temp of our 700 gallon hot tub up to from 75 degrees to 100 in a matter of an hour.
June 6, 2017
over 3 years ago
Master temp heater
I recommend this heater. Easy to install and start up. Works well and heats water fast. Waiting on first bills to check costs.
October 1, 2018
11 months ago
Wonder heater
Shopped around, online and local stores and this was the best price. This heater replaced a broken heater and I am very happy with performance. <br>
March 9, 2017
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Adobe Acrobat PDF Data Sheet
Adobe Acrobat PDF Owners Manual

How do I register for the warranty with my new Pentair product?
For Pentair's warranty registration information, and to submit online, please click here.  You can also access more information about Pentair by visiting our manufacturer page.

While the majority of Pentair products are covered by a 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 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.
^Labor Costs are not covered outside of US/Canada
Product/Product Category Length of Warranty Requires Professional Installation TradeGrade
SunTouch® Solar and SolarTouch® Control Systems 3 Years Yes  
Automation equipment, excluding SunTouch® Solar and SolarTouch®Control Systems 1 Year Yes  
IntelliConnect™ 1 Year Yes
IntelliCenter® 1 Year Yes
IntelliLevel™ 1 Year Yes
Filters 1 Year Yes  
MiniMax 75/100 1 Year Yes  
ETi™ 400 3 Years Parts & Labor^ Yes
UltraTemp ETi™ 3 Years Parts & Labor^ Yes
Heaters 2 Years Yes  
Heat Pumps
Heat Pumps 2 Years Parts & Labor^ Yes  
Compressor 10 Years Parts & Labor^ Yes  
Titanium Heat Exchanger Lifetime Yes  
Light Bulbs 60 Days Yes  
Lights 1 Year Yes  
IntelliBrite® 5G White LED Light 2 Years Yes  
MicroBrite™ 2 Years Yes
Single and Dual Speed Pumps 1 Year Yes  
Single-Phase, TEFC Super Duty Pumps 2 Years Yes
Select Variable Speed Pumps 3 Years    
SuperFlo® and SuperMax® VS Variable Speed Pumps 2 Years Yes  
IntelliFlo (#011018, #011028 and IntelliPro (#P6E6VS4H-209, #013028) 2 Years Yes  
IntelliFlo 2 VST (# 011055) and IntelliPro 2 VST (# 013001) 3 Years Yes
IntelliFlo VSF (# 011056) and IntelliFloXF VSF (# 022056) 3 Years Yes
IntelliPro VSF (# 013004) and IntelliProXF VSF (# 023056) 3 Years Yes
BioShield®UV Disinfection Sanitizer 2 Years Yes
BioShield Sanitizer Quartz Sleeve only 1 Year  
IntelliChlor®Salt Chlorine Generator (without Power Center) 2 Years    
iChlor™ Salt Chlorine Generator - Bundle with Power Supply and Cell (iChlor 15 and iChlor 30) 3 Years Yes
White Goods / Water Features / Valves
White Goods and Water Features and Valves 1 Year Yes  
Maintenance Equipment / Replacement Parts 60 Days (with exception of motors)    
Single-Phase, TEFC Super Duty Replacement Motors 2 Years Yes
Above Ground Systems
Above Ground Systems 1 Year    
Cleaners (Automatic cleaners purchased in the USA from entities outside the USA do not qualify for any warranty)
Tires, Rollers, Brushes, Climbing Rings, Cartridge Fillers Sixty (60) days    
Suction Seal, Foot Pad, Wings, Bumper, Strap, Seal Flaps 1 Year    
Legend and Legend II Inground Cleaner 1 Year    
Racer® Inground Cleaners 1 Year    
Platinum™ Inground Cleaner 1 Year    
Warrior® Inground Cleaner 2 Years    
Lil Rebel™ Aboveground Cleaner 2 Years  
Tires, Rollers, (Rebel, Warrior and Lil Rebel only) 90 days    
Dorado® Inground Cleaner 2 Years  
Kreepy Krauly® Inground Cleaner 2 Years    
Kruiser™ Inground Cleaner 2 Years    
Great White® Inground Cleaner 2 Years    
Racer LS® Inground Cleaner 2 Years  
Rebel® Inground Cleaner 2 Years  
SandShark™ Inground Cleaner 2 Years    
Prowler® 820 and Prowler 830 Inground Cleaners 2 Years    
Prowler® 910, 920 and Prowler 930 Inground Cleaners 2 Years  
ACU-TROL AK Color and Accessories 1 Year    
ACU-TROL Commercial Controllers 5 Years    
ACU-TROL Commercial pH or ORP Probes 2 Year    
ACU-TROL Electronic Modules 5 Year    
IntelliChem Commercial Chemical Controller 1 year^    
IntelliChlor (CIC60P & CIC60S) Commercial Salt Chlorine Generator (w/o power center) 2 Years or 15,000 operative hours (whichever comes first)    
Heaters 1 Year    
Heat Pumps 2 years parts & labor^    
Lights 1 Year    
STARK Commercial Filters 3 years^    
THS Series Commercial Filters 3 years^    
Max-E-ProXF Variable Speed Pump 2 years  
WhisperFloXF Variable Speed Pump 2 years  
Exceptions that may result in denial of a warranty claim:
  1. Damage caused by careless handling, improper repackaging, or shipping.
  2. Damage due to misapplication, misuse, abuse or failure to operate equipment as specified in the owner's manual.
  3. Damage caused by failure to install products as specified in the owner's manual.
  4. Damage due to unauthorized product modifications or failure to use Pentair original replacement parts.
  5. Damage caused by negligence, or failure to properly maintain products as specified in the owner's manual.
  6. Damage caused by failure to maintain water chemistry in conformity with the standards of the swimming pool industry for any length of time.
  7. Damage caused by water freezing inside the product.
  8. Accidental damage, fire, acts of God, or other circumstances outside the control of Pentair.
  9. Please see warranty card for commercial exceptions.

 Adobe Acrobat PDF Warranty Information
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Pool Supply Unlimited is an e-commerce company that loves water. We love to pump it, filter it, heat it, chlorinate it, light it up and stare at it while we're barbequing a fat, juicy steak. There are real pool professionals working here. Our guys have seen thousands of pools in their careers, no exaggeration. We are based in Southern California and can land most products to your door (within the 48 contiguous states) in less than a week.
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