United States
Find a pro
svg-icon
svg-icon
Warranty & Registration Lookup
Register your Rheem product or verify your warranty terms and coverage.
Learn more svg-icon
Find a Pro
Put your water heater and heating and cooling system installation in good hands with a trustworthy, independent Rheem Pro.
Search now svg-icon
Replace a Part
Find what you need to keep your Rheem equipment working perfectly.
Get parts svg-icon
Blogs
Read articles and industry news for homeowners and contractors.
Read more svg-icon
Financing
Don’t let a limited budget keep you from getting the comfort equipment you need for your home or business.
Get financing svg-icon
FAQs
Get answers to all the most frequently asked questions (FAQs) about Heating, Cooling & Water Heating.
Learn more svg-icon
Find Rebates
Search for and find local rebates for your new Rheem heating and cooling solution.
Learn more svg-icon
Project Sizing Solutions
Application Consulting for Customizable Water Heating Solutions.
Get help svg-icon
BIM/CAD Files
Browse and download BIM/CAD files for commercial heating and cooling solutions.
Browse BIM/CAD svg-icon
Financing
Explore financing options to help make your project more affordable.
Get financing svg-icon
Revit files
Browse and download Revit files for commercial water solutions.
Browse Revit svg-icon
Replace a Part
Find what you need to keep your Rheem equipment working perfectly.
Get parts svg-icon
Who We Are
Learn more about Rheem, our history and our commitment to sustainability.
Learn more svg-icon
Sustainability
Learn about our commitment to doing good by our customers, our partners, our employees - and our planet.
Learn more svg-icon
Careers
Passionate, innovative thinkers work here, grow here and impact the next generation. We are driven to provide the perfect degree of comfort for homes and businesses.
Learn more svg-icon
Our Leadership
Find detailed profiles of our company's key executives, highlighting their professional backgrounds, expertise, and roles within the organization.
Learn more svg-icon
News Releases
Stay up to date with the latest news and press releases from Rheem Manufacturing and its family of brands.
Read more svg-icon
Blogs
Read articles and industry news for homeowners and contractors.
Read more svg-icon
svg-icon
Residential Products
svg-icon
United States
Language
Americas
United States United States Canada Canada México México Bolivia Bolivia Brazil Brazil Chile Chile Columbia Columbia Argentina Argentina Perú Perú Ecuador Ecuador Paraguay Paraguay Uruguay Uruguay Honduras Honduras Panamá Panamá El Salvador El Salvador Costa Rica Costa Rica Guatemala Guatemala
Middle East, Asia & Ocenia
Asia Asia Indonesia Indonesia Singapore Singapore Philippines Philippines Vietnam Vietnam Malaysia Malaysia Middle East & Africa Middle East & Africa Australia Australia New Zealand New Zealand

Professional Classic Series: RTEX-36

See product details
related documents
Specification Sheet
Restarting Dormant Tankless Electric Water Heater
Specification Sheet (Canada-French)
Use & Care Manual
Web Product Image
Document preview is unavailable, you can download it via the link
Use & Care Manual
Helpful for Homeowner
Water Heaters
Heating & Cooling
Home Innovations
Pool & Spa Heaters
EcoNet®
ENERGY STAR® Products
Commercial Solutions
Commercial Water Heaters
Heating & Cooling
Commercial Innovations
Builders Program
Commercial Financing
Professionals
MyRheem Portal
Become a Rheem Pro
Replace a Part
Contractor Financing
Training
About Rheem
Who We Are
Sustainability
Careers
Blogs
Help & Support
Tools & Resources
Find a Pro
Product Registration
Water Heating Blog
Air Conditioning Blog
Rebate Center
Federal Tax Credits
Homeowner Financing
Frequently Asked Questions
HVAC KnowZone
Water Heating Technical Bulletins
Rheem Social
X YouTube LinkedIn Facebook Instagram
Rheem Mobile
googlePlay appStore
Find a Pro by City
See All
Atlanta, Georgia
Austin, Texas
Boston, Massachusetts
Charlotte, North Carolina
Chicago, Illinois
Houston, Texas
Dallas, Texas
Denver, Colorado
Detroit, Michigan
El Paso, Texas
Fort Worth, Texas
Indianapolis, Indiana
Jacksonville, Florida
Los Angeles, California
Memphis, Tennessee
Nashville, Tennessee
New York, New York
Oklahoma City, Oklahoma
Philadelphia, Pennsylvania
Phoenix, Arizona
Portland, Oregon
San Antonio, Texas
San Diego, California
San Francisco, California
San Jose, California
Seattle, Washington
Copyright 2004–2025 Rheem Manufacturing Company. All Rights Reserved.
Privacy Policy Supplier Code of Conduct ADA Accessibility Guidelines Cookie Policy Sales Policies & MAP Recall Information