Rheem RTG74DVN

RTG-74DVN Indoor Natural Gas Direct Vent Tankless Water Heater for 2-3 Bathroom Homes

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Rheem RTG74DVN

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Rheem RTG-74DVN Indoor Natural Gas Direct Vent Tankless Water Heater for 2-3 Bathroom Homes
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Brand: Rheem
SKU: RTG74DVN
Stock Id: SID90041

With the Rheem Tankless Water Heater RTG74DVN, showers start hot and stay hot for as long as the shower is running, plus the system is much smaller than normal tank water heaters and uses much less energy.

The Rheem RTG74DVN tankless water heater is an Indoor unit powered by Natural Gas that turns on when you open a hot water faucet and turns off when you close the faucet, so the energy consumed is only for the hot water being used. Since there is no storage of hot water and thus no constant heating and re-heating of stored hot water, you're not wasting energy heating water when you don't need it.

Rheem RTG74DVN Description:

With the Rheem Tankless Water Heater RTG74DVN, showers start hot and stay hot for as long as the shower is running, plus the system is much smaller than normal tank water heaters and uses much less energy.

The Rheem RTG74DVN tankless water heater is an Indoor unit powered by Natural Gas that turns on when you open a hot water faucet and turns off when you close the faucet, so the energy consumed is only for the hot water being used. Since there is no storage of hot water and thus no constant heating and re-heating of stored hot water, you're not wasting energy heating water when you don't need it.

Key features include: 7.4 gpm at a 45F temperature rise; electronic ignition to increase efficiency; remote control thermostat; digital temperature display; built-in electric blower to force exhaust gas outside; environmentally friendly low NOx burner; and a 5-year limited warranty on parts (12 years on heat exchanger.)

The Rheem Tankless Water Heater RTG74DVN is a revolution in home water heating that provides instant gratification with the satisfaction of being environmentally friendly and cost efficient at the same time.


Rheem RTG74DVN Features:

  • Direct Vent Tankless Water Heaters are Perfect for Placing in Closets or Small Rooms with Low Air-Flow
  • Continuous Hot Water
  • Energy Saving Design
  • UMC-117 Remote Control is Included and Can be Set from the Out-of-the-Box 120 Degrees up to a 140 Degree Maximum
  • EZ-Link Cable Connects Two Tankless Units to Operate as One (Now Available for High Demand Applications)
  • Guardian SBT Sensing Burner Technology and OFW Overheat Film Wrap
  • Two High Altitude Options - Up to 6,560 or 9,840 Feet Elevations Above Sea Level (Altitude Chip Required - Sold Separately)
  • Digital Display Shows Temperature Setting and Maintenance Codes
  • Built-In Electric Blower
  • Environmentally Friendly Low NOx Burner Meets SCAQMD Rule 1146 Requirements
  • Supplied with a 120 Volt Power Cord

    Rheem RTG74DVN Specifications:

  • Primary Specifications:

    • Model: RTG74DVN
    • 7.4 gpm at a 45F temperature rise (up to 8.5 gpm at 35F)
    • Electronic ignition increases efficiency (no standing pilot light)
    • Guardian OFW(TM) overheat film wrap
    • Digital display on thermostat shows temperature setting and maintenance/error codes
    • Built-in electric blower to force exhaust gas to the outside
    • UMC-117 remote control
    • Warranty: 12-Year on heat exchanger, 5-Year on parts, 1-Year on labor
    • Rheem Tankless Water Heater - Indoor, Natural Gas
    • Guardian SBT(TM) sensing burner technology
    • A remote control thermostat is included with all models with 100F - 140F setpoint range (factory set at 120F)
    • Environmentally friendly Low NOx burner meets SCAQMD rule 1146 requirements
    • EZ-Link(TM) cable connects two like units to operate as one, doubling capacity
    • Weight: 55 pounds
    • Dimensions: 25-3/8"h x 14-7/8"w x 11-1/8"d

    Technical Specifications:

    • # Of Applications: 2-3 showers concurrently
    • Water Connection: 3/4" NPT
    • Gas Connection: 3/4" NPT
    • Energy Factor: .82
    • Temperature Range: 100 - 140 degrees
    • Ignition: Electric
    • Exhaust Hose Diameter: 4 inches
    • Combustion Air Pipe Size: 4 inches
    • BTU: 199,900
    • Dimensions: 25 x W 14 7/8 x D 11 1/8
    • Weight 55 lbs.
    • Comes with remote control for thermostat

    Venting (Exhaust)

    • Diameter: 4 inch
    • Material: Stainless Steel (AL29-4C) sealed
    • Minimum length: 1 ft. if used with 90 degree elbow, wall thimble and exhaust 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 = 2
    • Front = 12
    • Side =
    • Bottom = 12
    • Back = 0

    Energy Requirements

    • Ignition: Electric (120 V)
    • Power Natural Gas: 199,900 BTU
    • Energy Factor: .82

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