The Rheem GT-199DVN (Natural Gas) commercial propane tankless water heater supplies 2-3 hot water applications at a time with temperatures up to 180 degrees. Unit can be vented either through the wall or roof and can be connected in series to increase hot water flow.

The GT-199DV tankless hot water heater can supply 7.4 gallons per minute of hot water at a 45 degree temperature rise. This is designed for commercial applications where water temperatures need to reach up to 180F. It requires a 4" stainless steel exhaust vent and with the direct vent is able to pull in air through an intake vent (can be PVC, aluminum flex, etc) to eliminate the combustion air requirements. This tankless water heater carries a 10 year limited warranty on the heat exchanger and a 3 year limited warranty on parts. The ignition is electronic and the unit comes with a 120V power cord. This model can be linked with another GT-199DV in series with the EZ-Link cable (RTG-20040) for high demand applications as the two units would operate as one with double the water flow. When 3 to 20 units are connected in series a manifold controller, cables and/or control boards are required. For installations above 3,280 ft a high altitude chip is required.

Tankless gas commercial water heaters by Rheem-Ruud are designed to fill the need wherever hot water is required. Typical installations include: restaurants, hotels, laundry mats and multiple family housing.

Extensive manifold capability up to 20 of the commercial tankless units can be linked in a manifold configuration to meet the hot water needs of larger commercial applications. Energy saving design fully modulating burners are designed to use only as much gas as needed to satisfy the hot water demand. Space saving design compact dimensions simplify installations and fit tight spaces where larger water heaters may not. Remote control digital display thermostat displays temperature, verifies operation and shows maintenance and error codes for easy service. Exclusive combustion monitoring device monitors the combustion process and turns off the fuel supply if incomplete or inadequate combustion is detected. Exclusive film wrap overheat limiter instantly detects any overheating in the heat exchanger and shuts down the unit if unsafe temperature is detected. Built-in electric power burner provides installation flexibility, allowing for horizontal or vertical vent terminations up to 47-1/2 feet (indoor model).

Efficiency these models have been tested according to DOE test procedures, and exceed the thermal efficiency and standby loss requirements of ASHRAE Standard 90.1b-2001 (Part of the Federally mandated Energy Policy Act (EPact)). Also exceeds energy efficiency codes of all states including California Energy Commission (CEC).Safety and construction these products are design certified by CSA:

Please Note: ***If the water heater is installed anywhere other than a single family dwelling, such as a commercial application, or in any system in which the water is recirculated, the applicable warranty periods will be limited to three (3) years.

Temperature Increase / Gallons Per Minute:

• 140ºF Rise at 2.4 gpm
• 130ºF Rise at 2.6 gpm
• 120ºF Rise at 2.8 gpm
• 110ºF Rise at 3.0 gpm
• 100ºF Rise at 3.3 gpm
• 90ºF Rise at 3.7 gpm
• 80ºF Rise at 4.1 gpm
• 77ºF Rise at 4.3 gpm
• 70ºF Rise at 4.7 gpm
• 60ºF Rise at 5.5 gpm
• 50ºF Rise at 6.6 gpm
• 45ºF Rise at 7.4 gpm
• 35ºF Rise at 8.5 gpm

Height: 25 3/8"

Width: 14 7/8"

Depth: 11 1/8"

Primary Specifications

• Model: GT199DVN
• 7.4 gpm at a 45ºF temperature rise (up to 8.5 gpm at 35ºF)
• Compact, space and energy saving design
• Built-in electric blower
• Temp Range: 100º 180ºF
• Guardian OFW(TM) overheat film wrap
• Includes Remote Control
• Warranty: 3-year limited warranty on parts (10 years on heat exchanger.)
• Rheem GT199DVN Direct Vent Natural Gas Heavy Duty Tankless Water Heater
• Digital display shows temperature setting and maintenance codes
• Indoor units use Category III stainless steel vent
• Indoor models supplied with a 120 Volt power cord
• Environmentally friendly Low NOx burner meets SCAQMD rule 1146requirements
• D.O.E. Annual Operating Cost$167 Nat / $246 LP
• Weight: 55 pounds
• Dimensions: 25 3/8"h x 14 7/8"w x 11 1/8"d

Technical Specifications:

• Direct Vent Natural Gas
• 3/4" Water Connections
• 3/4" Gas Connection
• D.O.E. Annual Operating Cost$167 Nat / $246 LP
• Temp Range: 100° 180°F
• 19,000 199,000 BTU's is the
• 7.4 GPM Gas Water Heater
• 10-Year Limited Warranty on Heat Exchanger
• 3-Year Limited Warranty on Parts 
• Continuous hot water
• Energy saving design
• Compact, space saving design
• Intelligent electronic controls and sensors
• Self diagnostic program
• Digital display shows temperature setting and maintenance codes
• Exclusive sensing burner technology
• Exclusive film wrap overheat limiter
• Built-in electric blower
• Indoor units use Category III stainless steel vent
• Indoor models supplied with a 120 Volt power cord
• Low NOx emissions meet SCAQMD rule 1146 requirements
• Includes Remote Control.
• EZ-Link™ cable connects two like units to operate as one, doublingcapacity – now available for high demand applications (cable not included)
• Dimensions: 25 3/8"H x 14 7/8"W x 11 1/8"D
• Weight: 55 lbs.
• Inlet Gas Pressure must not exceed 10.5” W.C. for natural gas (14” W.C.for LP propane)
• Unit does not include a pressure relief valve or the wiring to connectthe remote thermostat
• Low NOx emissions meet SCAQMD rule 1146 requirements
• A remote control thermostat is included with all models (100 F 140 F setpoint range) Requires 18 AWG, 2 conductor thermostat wire for remote controlconnection. Wire not included.

Venting (Exhaust):

• Diameter: 4 inch
• Material: Stainless Steel (AL29-4C) sealed
• Minimum length: 1 ft. if used with 90 degree elbow, wall thimble andexhaust vent hood.
• Maximum length: 47.6 ft. (10.5m) with one 90 degree elbow. Less 5 ft.for each additional 90 degree elbow (2.5 ft for each 45 degree elbow)

Venting (Intake)

• Diameter: 4 inch
• Material: PVC, Aluminum or Galvanized
• Minimum length: 3 ft.
• Maximum length: same or less than the length of the exhaust vent
   

Minimum clearances for installation

• top 12"
• vent (indoor models only) - 2"
• front 12"
• side 1/2"
• bottom 12"
• back 0"

Energy Requirements

• Ignition: Electric (120 V)
• Power - 19,000 - 199,900
• Energy Factor: .82

***Our Recommended Accessories:

• 4" Z-Flex Gas Vent Universal Appliance Adapter - Required for venting with 4" venting materials.
• BrassCraft 36" Long Stainless Steel Gas Connector w/ Pro Coating - Every gas water heater requires a gas connector and this model is our recommended top pick. We highly recommend this particular model for saving you time and money!  Also available in different lengths if required - simply call us toll free at 888-793-2665.
• Rheem Tankless Water Heater High Altitude Chip - Required if heater will be used above 3200 ft.
• Sioux Chief Gas Tankless Water Heater Connector Set - Required to connect all gas tankless water heaters to the corresponding water and gas lines. Includes pressure relief valve.
• RTG20040 - This cable connects two Rheem heaters together for high demand applications.
• RTG20060 - This sweet termination kit is used for 13-17" wall thickness for the RTG74DV and GT199DV units. Makes installation easy. Includes everything you need for the direct vent application.
• RTG20059 - This sweet termination kit is used for 9"-13" wall thickness for the RTG74DV and GT199DV units. Makes installation easy. Includes everything you need for the direct vent application.

You may download a product owner's manual below:

• Download Product Specification Sheet (PDF)

• Download Product Owner's Manual (PDF)

• Get Adobe Acrobat Reader

**Please note, Adobe Acrobat Reader is required to view pdf files

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