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Rheem RTGH-90DVLP-2 Prestige 180 Input MBtu Low Nox Indoor Residential Liquid Propane Tankless Water Heater - Direct Vent - 12 Year Warranty


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Product details

Rheem RTGH-90DVLP-2 Tankless Gas Tankless Liquid Propane Water Heater

Product Features:

  • 6.6 GPM at a 45 degrees F temperature rise (up to 8.4 GPM at 35 degrees F)
  • Exclusive! Guardian OFW overheat film wrap
  • Digital display on thermostat shows temperature setting and maintenance/error codes
  • Environmentally friendly Low NOx burner meets SCAQMD rule 1146 requirements
  • Built-in electric blower to force exhaust gas to the outside
  • Features freeze protection to -30 degrees F
  • EZ-Link cable connects two like units to operate as one, doubling capacity - now available for high demand applications (cable not included)
  • High altitude chip is required for installation above 9,840 ft (chip not included with unit)
  • recommends that appliances be installed by a licensed profession  

Rheem Water Heater Prestige Series


Rheem Prestige® Condensing Tankless Solutions – Energy Efficient Continuous Hot Water

  • Up to .93 UEF with stainless steel condensing heat exchanger
  • Easy Installation and Service

  • NEW! 2" venting connections
  • NEW! Vent up to 150 ft with 3" PVC and 60 ft with 2" PVC
  • Built-in condensate neutralizer
  • 1/2" Gas line compatibility up to 24 ft.1
  • Exclusive! Maintenance Notice Setting – Alerts homeowner, after 500 hours of use, to call for service (optional)
  • Self-diagnostic system for easy installation and service
  • High-altitude capability – up to 8,400 ft. elevation above sea level2
  • Digital remote control now pre-wired! 10 ft. of thermostat wire included – shows temperature setting and service codes
  • Requires 120V power supply
  • Performance
  • Industry Leading! Low Flow Activation- Minimum flow rate of .26 GPM and minimum activation flow rate of .40 GPM ensures hot water even in low demand situations>
  • Recirculation Pump Kit-Ready- Providing faster hot water at the tap and savings of up to 12,000 gallons water/ year4
  • Exclusive! Hot Start Programming- Minimizes cold water bursts by staying in ready-fire state for back-to-back hot water needs


  • EcoNet® Enabled- All Tankless products from 2010 to present can connect to EcoNet mobile app via Tankless EcoNet Accessory Kit (REWRA630TWH)
  • For higher demand applications, easily link multiple tankless units to operate as one system:

    – 2 Units: EZ Link cable

    – Up to 6 units: MIC-6 Control Board

    – Up to 20 units: MIC-185 plus MICS-180 manifold control assembly


Superior Construction and Reliability

    1. Stainless Steel Secondary Heat Exchanger
    2. All-Copper Primary Heat Exchanger
    3. Over Heat Film Wrap
    4. Electronic Spark Ignition
    5. 11,000 - 199,900 BTU/h Modulating Burner
    6. Electronic Control Board
    7. Condensate Neutralizer
    8. Variable Speed Fan
    9. Water Flow Control System
    10. Modulating Gas Valve

EcoNet WiFi Include

Rheem Tankless Water Heater with EcoNet® WiFi Included

    Smart Home Features
  • Water leak detection alert and system shut off (indoor models only) – may qualify for insurance discounts
  • Mobile alerts for notifications/maintenance reminders
  • Mobile gas and water usage reports
  • Integration with smart home systems
  • Product Includes
  • Factory-installed translator
  • Leak detection cable (for indoor models)
  • WiFi Module, connection cable and power cord
See All Rheem Products

Specification Sheet

Basic Information
MPN ? Manufacturer Part Number RTGH-90DVLP-3
UPC / GTIN 020352628165
Manufacturer Rheem
Series ? A manufacturer's grouping of items that match, coordinate, or complement each other. Prestige
Dimensions and Measurements
Gallons Tankless
BTU Input 180,000
Weight ? Weight 83.00
Characteristics and Features
Fuel Type Liquid Propane
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