Rheem RTG-64DVLN Tankless Gas Water Heater, 150,000 BTU, 6.4 GPM

Brand: Rheem
Model: RTG-64DVLN
Condition: New
Warranty: 1-12 Years*
SKU: 826249

Rheem RTG-64DVLN Tankless Gas Water Heater

Our Price: $728.38
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Rated by Energy Star, the Rheem RTG-64DVN Gas Tankless Water Heater, which uses Direct Vent Natural Gas, is an industry standard for efficient heating at a low cost. This technologically advanced water heater has the ability to supply 6.4 gallons of hot water per minute, using minimal energy. The RTG-64 is sfor 1-2 bathroom homes. 

The Rheem RTG-64DVN Gas Tankless Water Heater offers you top of the line effectiveness for an affordable price. Built to contain a concentric vent system with an integrated condensate collector and Rheem’s next generation burner technology. This Rheem tankless gas heater's flow rate is one of the industry’s best. At a minimum of .26 GPM, as well as an astounding .40 GPM minimum activation flow rate.

Are looking to reach the maximum efficiency for your Rheem tankless water heater? All Rheem models can be interconnected to 20 other unit manifold installations, simply by using the optional manifold control assemblies, giving you total control over these high end heating devices.


  1. Rheem RTG-64DVN Gas Tankless Water Heater Must be PROFESSIONALLY INSTALLED to be eligible to receive a factory warranty.  
  2. Vent Termination Kits are required for Direct Vent models
  3. Proper gas pressure must be ensured to supply tankless gas water heaters - up to 150,000 BTU for RTG-64 models. (Consult your gas supplier)
  • Built-In Electric Blower
  • Connects to Metal Fab 3"/5" Concentric Venting Without an Adapter
  • Digital Remote Control & 10 ft. of Thermostat Wire Included
  • EZ-Link Cable Available To Connect Two Tankless Units as One
  • Exclusive! Guardian Overheat Film Wrap (OFW)
  • Freeze Protection -30F
  • High Altitude Capability Up to 9,840 Ft. Elevation Above Sea Level
  • Hot Start Programming Minimizes Water Temperature Fluctuations
  • Indoor Direct Vent Using Natural Gas
  • Industry First for Min Flow Rate of 0.40 GPM
  • NOx Burner Meets SCAQMD Requirements
  • Required Manual Gas Isolation Valve Included
  • Self Diagnostic Systems
  • Shows Temperature Setting
  • Model: RTG-64DVN
  • Gas Input/BTU/HR: 11,000-150,000
  • Type: Indoor Direct Vent
  • Temp Range: 100° - 140°
  • GPM @ 77° Rise Max: 3.3
  • GPM @ 45° Rise Max: 5.6
  • GPM @ 35° Rise Max: 6.4
  • Gas/Water Connection: 3/4
  • Dimensions: 25 5/8 H x 13 7/8 W x 9 7/8 D
  • Vent Diameter (Inches): 3 by 5 concentric
  • Ship Weight: 54 pds
  • Energy Factor: 0.82
  • D.O.E Ann. Op. Cost NAT/LP: $223/$374
  • Manifold up to six units with an optional MIC-6 manifold control board
  • Manifold up to 20 units with the optional MIC-185 plus the MICS-180 manifold control assembly
Parts Warranty Through the Manufacturer: 5 Years
• Labor Warranty Through the Manufacturer: 1 Year
• Heat Exchange Warranty Through the Manufacturer: 12 Years

GENERAL: This Limited Warranty is only available to the original owner of this water heater. It is not transferable. Rheem Manufacturing Company (Rheem) warrants this Rheem or Ruud water heater, and its component parts, to be free from defects in materials and workmanship, under normal use and service, for the Applicable Warranty Period. At its option, Rheem will repair or replace the defective water heater, or defective component part(s), in accordance with the terms of this Limited Warranty, if it fails in normal use and service during the Applicable Warranty Period. The replacement water heater must be manufactured by Rheem. The replacement component part(s) must be Rheem authorized component part(s). The replacement unit will be warranted only for the unexpired portion of the original unit's Applicable Warranty Period.

EFFECTIVE DATE: The Effective Date of warranty coverage (or the beginning of the Applicable Warranty Periods) is the date of installation of the water heater, if properly documented. Otherwise, it is the date of manufacture of the water heater plus ninety (90) days.

APPLICABLE WARRANTY PERIODS: The Applicable Warranty Periods are ten (10) years from the Effective Date for the heat exchanger and three (3) years from the Effective Date for the component parts if the water heater is installed in a single-family dwelling. If the water heater is installed anywhere other than a single-family dwelling or in any system in which the water is recirculated, the Applicable Warranty Periods will be limited to one (1) year from the Effective Date.


This Limited Warranty will not cover:
1. Service trips to your home to teach you how to install, use, or maintain this water heater or to bring the water heater installation into compliance with local building codes and regulations.
2. This residential tankless water heater if it is installed for use in: spa or pool heating; a mobile home; a recreational vehicle; a boat or any other watercraft.
3. Units installed in any circulating system in which the temperature of the incoming water to the water heater is in excess of 120° F.
4. Damages, malfunctions or failures resulting from failure to install the water heater in accordance with applicable building codes/ordinances or good plumbing and electrical trade practices.
5. Damages, malfunctions or failures resulting from improper installation or failure to operate and maintain the unit in accordance with the manufacturer's instructions provided, including outside of recommended water quality levels as listed in the chart below:
6. Performance problems caused by improper sizing of the water heater or the gas supply line, the venting connection, combustion air openings, electric service voltage, wiring, or fusing.
7. Damages, malfunctions or failures caused by improper conversion from natural gas to LP gas or LP gas to natural gas fuel source.
8. Damages, malfunctions or failures caused by operating the water heater with any parts removed or with modified, altered, or unapproved parts installed.
9. Damages, malfunctions or failures caused by abuse, accident, fire, flood, freeze, lightning, acts of God and the like.
10. Heat exchanger failures (leaks) caused by operating the water heater in a corrosive or contaminated atmosphere or damages, malfunctions or failures caused by lime or mineral build-up.
11. Damages, malfunctions or failures caused by operating the unit at water temperatures exceeding the maximum setting of the operating, or high limit, control.
12. Heat exchanger failures caused by operating the water heater when it is not supplied with potable water.
13. Damages, malfunctions or failures caused by subjecting the heat exchanger to pressures, or firing rates, greater than those shown on the rating label.
14. Damages, malfunctions or failures resulting from the use of any attachment, including any energy saving device, not authorized by Rheem.
15. Units installed outside the fifty states (and the District of Columbia) of the United States of America and the Dominion of Canada.
16. Units removed from the original installation location and reinstalled elsewhere.
17. Units that have had their rating labels altered, tampered with, or removed. A water heater should not be operated if the rating label is removed.
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