The affordable Pentair MasterTemp 125 Natural Gas Pool Heater gives you the energy savings and advanced operating features that were only available from much larger heaters. With its revolutionary premixed gas combustion technology, it offers 82% thermal efficiency—the highest of any heater in its category.
- Natural gas model with cord
- 125,000 BTU rating
- 82% energy efficiency
- High-performance, affordable heating with premium features
- 1-½" plumbing
- Ideal for smaller bodies of water up to 15,000 gallons
- For above ground and inground pools
- Pre-mixed combustion technology for ultra-fast heat-up
- Rotating digital display - the first in its price category - provides fast, easy access for programming and monitoring
- Certified for low NOx emissions
- Certified for outdoor and indoor - vented installations
Click here to download the manual

Outlet Hours
Tinley Park Outlet
Monday - Tuesday: 10am - 6pm
Wednesday: CLOSED
Thursday- Sunday: 10am - 6pm

Store Hours
Bridgeview, Carol Stream, Lake Zurich, Merrillville, Naperville, Orland Park, Romeoville
Monday - Friday: 10am - 7pm
Saturday: 10am - 6 pm
Sunday: 10am - 6pm

Customer Pickup Hours
Customer Pickup -
Tinley Park Warehouse
Monday - Friday: 10am - 6pm
Saturday: Closed
Sunday: Closed
- All Departments
- Spa and Wellness
- Saunas
-
Pools
- Above Ground Swimming Pools
- The Ultimate Pool
- Endless Pools
- Pool Opening
- Pool Furniture
- Pool Liners
- Inflatable Pools
- Pool Accessories
- Pool Maintenance
- Pool Equipment
-
Pool Recreation
- Air Pumps
- Beach Balls
- Floating Coolers
- Inflatable Boats and Oars
- Inflatable Slides
- Inflatable Water Parks
- Kiddie Sized Inflatable Pools
- Kids Pool Floats
- LED Light Up Inflatables
- Pool Lounges & Floats
- Pool Noodles
- Pool Swim Aids
- Pool Swim Rings / Tubes
- Poolside Basketball
- Pool Sports Collectibles
- Sprinklers
- Swimming Masks & Goggles
- Water Games
- Water Sports
- Water Toys
- Outdoor Living
- Backyard Fun
- Game Room
- Holidays
- Grills
- Christmas
- Clearance & Closeout
- Our Stores
- Exclusive Offers
- Financing
- Events
- Blog
- My Account