Home Sta-Rite Max-E-Therm Low NOx Pool Heater | Electronic Ignition | Digital Display | Propane | 400,000 BTU | SR400LP

Sta-Rite Max-E-Therm Low NOx Pool Heater | Electronic Ignition | Digital Display | Propane | 400,000 BTU | SR400LP

Typically ships in 1-2 business days

$1,987.63

Quantity:
Parts AvailableParts Available
  • Lower Operating Costs - 84% efficiency rating - rated 1st in its class for highest energy efficiency

  • Environmentally Friendly - All units are low NOx
  • Compact Design - Ideal for retro-fit installation
OVERVIEW
For indoor or outdoor installations on pools and spas. Features include an LED temperature readout with dual thermostat controls, temperature safety lockout, and 6-position control panel. PMG burner technology requires no outdoor draft hood. Proven Dura-Glas rust-proof construction with plastic manifold and PVC union connections. Heavy-duty units with cupro-nickel exchanger stands up to the harshest of applications, like low pH, high flow or heavy use.

An Eco Select„ Brand: Max-E-Therm® high performance heaters offer best-in-class energy efficiency. Plus, they are certified for low NOx emissions, making them eco-friendly favorites.

Sure, a beautiful pool looks inviting, but its cold water can keep you high and dry. Which is why it pays to have a Max-E-Therm® heater. After all, when the water's just right, you maximize the enjoyment of your pool experience. The fast-heating Max-E-Therm makes your pool irresistible on cool nights. It also allows you to extend your pool season. Unlike other heaters, Max-E-Therm offers you the latest advances from Sta-Rite®: a rustproof exterior, smart electronics and increased energy efficiency. Whether you're looking for quiet relaxation or wild fun, you'll always enjoy your pool in the warm comfort of Max-E-Therm.

Features:
  • Lightweight - Lightest heater in its class
  • Compact Design - Ideal for retro-fit installation
  • Easy to Switch - Change gas sources with installation of separate orifice
  • Environmentally Friendly - All units are low NOx
  • Rustproof Housing Sleek, matte black enclosure is made of Dura-Glas - an exclusive Sta-Rite material that handles the heat and weathers the elements
  • Lower Operating Costs - 84% efficiency rating - rated 1st in its class for highest energy efficiency
  • Custom or Retrofit - Direct-connects to Sta-Rite System:3® Mod Media filter or easily fits other systems
  • High efficiency rating makes the Max-E-Therm extremely economical to operate
  • Specially designed fueling and ignition process permits faster warming of your pool and spa
  • Easy-to-read, conveniently positioned control panel is simple to program
  • Dura-Glas„ housing will not corrode and stands tough against harsh weather
  • If you want that warm-all-over feeling, choose the Sta-Rite Max-E-Therm heater. It's a better choice for a host of reasons
  • Self diagnostics - Control panel indicator lights pinpoint heater or system conditions, which can save money through faster troubleshooting (if required)


Brand: PENTAIR
Q & A
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Browse 4 questions Browse 4 questions and 18 answers
Why did you choose this?
Pool Supply Unlimited Store
have one already
Anthony B on Jul 18, 2018
Replacement of same unit that lasted 15 years with some minor repairs and replacement parts.
Thomas N on Nov 25, 2017
have one already
Anthony B on Jul 18, 2018
replace current sta-rite heater that I installed 20 years ago.
Johnson W on Jul 2, 2018
Replacement of same unit that lasted 15 years with some minor repairs and replacement parts.
Thomas N on Nov 25, 2017
Compact unit with good reviews.
Paul L on Sep 7, 2017
I needed a new pool heater and this was the recommended item.
Robert G on Aug 23, 2017
Lowest price for a pool Heater this size
Dean G on May 25, 2017
replacing same model
jerry c on Apr 13, 2017
This is what I have now and I was happy with it before it broke
Susan B on Jan 24, 2017
Replace current model
Mark M on Oct 5, 2016
replacement
Frank G on Aug 24, 2016
good experience with this product in the past
James B on Aug 2, 2016
Replacement of existing unit
Corinne R on May 16, 2016
price
James K on Apr 2, 2016
It is a great heater. This one is to replace an older one of the exact same model.
Danny S on Feb 17, 2016
1. They had a great price
2. They had a real address that checked out on street view
3. Their customer support was really helpful before the purchase
4. They had good on-line reviews
Charles F on Nov 4, 2015
replace current sta-rite heater that I installed 20 years ago.
Johnson W on Jul 2, 2018
Compact unit with good reviews.
Paul L on Sep 7, 2017
Why wont it heat up can hear it trying to start but no heat and I smell a little gas?
A shopper on Nov 3, 2018
BEST ANSWER: SWITCH IN ELECTRONIC SUPPLY BOX SET FOR 220 VOLTS, REVERSE AND SET FOR 115
What is the difference between the 400k LP and 400k HD propane heaters?
A shopper on Apr 13, 2018
BEST ANSWER: The heat exchanger is heavy duty made out of cipro-nickel, which will last longer, especially with a salt pool.
What is the range of delivery?
A shopper on May 31, 2018
REVIEWS
5.0 / 5.0
5 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
5
0
0
0
0
Representative extremely helpful with my purchase. Heater arrived quickly with no issues. It was installed and have had no problems.
March 17, 2018
Purchased
9 months ago
Sta-Rite SR400LP
Arrived very quickly (less than two days) in perfect shape. Installation and operation went very smoothly. An excellent experience.
September 5, 2016
Purchased
over 2 years ago
Great Replacement
My old heater finally went out so I ordered an exact replacement. Very quick delivery and easy installation. This is a work horse.
September 11, 2016
Purchased
over 2 years ago
So Easy
Not only does this heater work great, but it was so easy to convert from propane to natural gas. I bought the heater for a rental property that had propane and then moved it to my house where there is natural gas. There were no expensive and long list of parts to convert it - just one $30 small part that took no time to install. Too easy.
January 9, 2014
Very Happy
I have had it for about a month now. It fired right up and works extremely well and works fast. The savings in time and gas are amazing.<br>
February 9, 2015
RESOURCES
Adobe Acrobat PDF Brochure
Adobe Acrobat PDF Eco-Friendly Brochure
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.


WARRANTY
Pentair Product Warranties Give You Even More Peace Of Mind 
 
While the majority of Pentair products are covered by a sixty- (60) day warranty, a select number of products qualify for extended warranty coverage.
 
Pentair offers a three- (3) year extended warranty on the following products when they are installed by a qualified installer and registered within sixty (60) days from the date of installation:
  • Energy-saving IntelliFlo® and IntelliPro® Variable Speed Pumps (select models)
    • Three year warranty is only applicable to IntelliFlo® 2 VST and IntelliPro® 2 VST pumps purchased from a retail store (brick and mortar), pool builder or pool service company. IntelliFlo® 2 VST and IntelliPro® 2 VST Pumps purchased online (via internet) will only receive a sixty (60) day limited warranty.
  • SunTouch® Solar and SolarTouch® Control Systems
  • 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: 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 coverage for bundled products. 
 
2 Year Extended Warranties
 
Pentair offers a two- (2) year extended warranty on the following products when they are installed by a qualified installer and registered within sixty (60) days from the date of installation: 
  • SuperFlo® and SuperMax® VS Variable Speed Pumps
  • IntelliFlo® (part # 011018) and IntelliPro® (part #P6E6VS4H) Variable Speed Pumps
  • Heaters and Heat Pumps
  • IntelliBrite® 5G White LED Light
Pentair offers the following product warranties which do not require installation by a qualified installer:
  • IntelliChlor® Salt Chlorine Generator Replacement Cell
  • Dorado™ Inground Cleaner
  • Prowler® 820 and Prowler 830 Inground Cleaners
  • Kreepy Krauly® Inground Cleaner
  • Kruiser™ Inground Cleaner
  • Great White® Inground Cleaner
  • SandShark™ Inground Cleaner
  • Rebel® Inground Cleaner --- When the Pentair Rebel is purchased at a retail store, pool builder, or pool service company, the product will have a 2-year limited warranty. If purchased online/E-commerce, the warranty will have a 60-Day Limited Warranty.
1 Year Extended Warranties
 
Pentair offers a one- (1) year extended warranty on these products when they're installed by a qualified installer and registered within sixty (60) days from the date of installation:
  • Single and Dual Speed Pumps
  • Filters and Valves
  • Lights
  • Automation equipment, excluding SunTouch® Solar and SolarTouch® Control Systems
  • White Goods and Water Features
  • Chlorine/Bromine Feeders
Pentair offers the following product warranties which do not require installation by a qualified installer:
  • Aboveground Systems
  • Racer® Inground Cleaner
  • Legend® and Legend II Inground Cleaners
  • Platinum™ Inground Cleaner
  • 'Lil Shark™ Aboveground Cleaner
  • E-Z Vac® Aboveground Cleaner
  • Warrior™ Inground Cleaner
Commercial Warranties
 
All products used in commercial applications receive a one- (1) year warranty. For warranty purposes, a commercial facility is defined as any facility other than a single family dwelling.
  • ACU-TROL AK Color and Accessories — one (1) year. Exception: ACU-TROL Equipment Repairs sixty (60) days (for Non-Warranty Repairs)
  • ACU-TROL Commercial Controllers and Electronic Modules — five (5) years
  • ACU-Trol Commercial pH and ORP Probes — two (2) years
  • Commercial IntelliChlor® Salt Chlorine Generator (without power cell) two (2) years
  • Heat Pumps — two (2) years Parts & Labor. Exception: Compressor Parts and Labor — ten (10) years, Titanium Heat Exchanger — Lifetime.
  • IntelliBrite® 5G White LED Light-two (2) years
  • STARK Commercial Filters — Fifteen (15) years
  • THS Series Commercial Filters — Ten (10) years


 Adobe Acrobat PDF Warranty Information
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ABOUT THE STORE
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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