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Rheem Manuals & User Guides

Rheem is a global leader in manufacturing innovative and energy-efficient heating, cooling, and water heating solutions for residential and commercial applications.

Tip: include the full model number printed on your Rheem label for the best match.

About Rheem manuals on Manuals.plus

Rheem Manufacturing Company is a premier American manufacturer of residential and commercial water heaters and boilers, as well as heating, ventilating, and air conditioning (HVAC) equipment. Founded in 1925, Rheem is the only manufacturer in the world that produces heating, cooling, water heating, pool and spa heating, and commercial refrigeration products, offering total comfort solutions for homes and businesses.

Headquartered in Atlanta, Georgia, Rheem emphasizes sustainability and reliability in its product lines, which include tankless water heaters, hybrid heat pumps, furnaces, and air conditioners. The company operates globally with a commitment to delivering superior efficiency and performance, supported by a vast network of service professionals.

Rheem manuals

Latest manuals from manuals+ curated for this brand.

Rheem H5HK Series Heater Kits Instruction Manual

February 9, 2026
Rheem H5HK Series Heater Kits Installation Instructions  Phase Electric Heater Kits  and 10 TON Package A/C Systems Description Installation of 208/240V and 480V H5HK 3 Phase Heater Kits in 7.5…

Rheem RH2TY Endeavor Line Air Handlers User Manual

January 27, 2026
Rheem RH2TY Endeavour Line Air Handlers Model Number Identification: RH2TY Air Handlers Features and Benefits Quiet Operation1: Provided by a cabinet construction with 1.0 inch of foil faced insulation for…

Rheem 80+ Series Gas Furnaces: Installation Instructions

Installation Instructions
Comprehensive installation instructions for Rheem 80+ Upflow/Horizontal two-stage and single-stage Bluetooth communicating gas furnaces. Covers safety, location, ducting, gas supply, electrical, startup, maintenance, and diagnostics.

Rheem Continuous Flow Water Heater Spare Parts Manual

Parts List
Comprehensive spare parts manual for Rheem continuous flow gas water heaters, including models 884024, 864027, 864627, 862627, 874027, 874627, 872627, 874016, 874020, 874616, 874620, 871624C, 871024C, 874026, 26B, 871018B, 871020B,…

Rheem manuals from online retailers

Rheem PROTECH SP20075 Pilot Assembly Instruction Manual

SP20075 • January 13, 2026
This manual provides detailed instructions for the installation, operation, and maintenance of the Rheem PROTECH SP20075 Pilot Assembly, designed for select natural gas water heaters. It includes the…

Rheem support FAQ

Common questions about manuals, registration, and support for this brand.

  • Who do I contact for Rheem customer service?

    For general inquiries, you can call Rheem customer service at 1-800-621-5622. For tankless water heater tech support, dial 1-866-720-2076.

  • Where can I find warranty information for my Rheem product?

    You can explore warranty details and coverage on the Rheem Warranties page at Rheem.com/warranties.

  • How do I verify my Rheem warranty?

    Visit the Warranty Verification page on the official Rheem website to check the status of your product's warranty.

  • Where is Rheem Manufacturing Company located?

    Rheem is headquartered in Atlanta, GA, located at 1100 Abernathy Rd Ste 1700.