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Rheem Professional Classic Direct Vent gas water heaters use outside air for combustion

SKU: 666570

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Product Details

Rheem 666570

PROG40-36N RH62 DV H


Professional Classic direct vent gas water heaters use outside air for combustion, offer longer venting options and a coaxial vent for easy installation.


  • Collection Professional Classic
  • UPC 020352666570
  • Online Product ID 5604014
  • Height 68.25"
  • Diameter 19.75"
  • Oversized yes
  • Warranty 6 years
  • Sink Length 24.31"
  • Capacity (gal.) 40
  • Fuel Type Natural Gas
  • Application Residential
  • First Hour Recovery Rate 64 gph
  • Heating Capacity 36000 Btu/hr
  • Height To Gas Connection 14.25''
  • Height To Vent Connection 68.25''
  • Ignition Type Piezo
  • Recovery Rate At 90 Deg F 36.4 gph
  • Safetylist AHRI Certified, CSA Certified
  • Tank Height 60.88''
  • Uniform Energy Factor Uef 0.56
  • Vent Size 6''
  • Vent Type Direct Vent
  • Shipping x W:20.88"x H:69.81" 160.00 lbs.

Additional information

  • FHR: 78 gal for 50 gal model and 66 gal for 40 gal model
  • Recovery: 30.3-36.4 gph at a 90 deg F rise, depending on model
  • Adjustable coaxial vent allows flexibility of installation, can swivel 360 deg and uses outside air for combustion and requires no electrical power
  • Aluminum vent and cap base to prevent staining of building exterior
  • Longer venting options available, see chart on reverse
  • Exclusive air/fuel shut-off device
  • Maintenance free - no filter to clean
  • Disables the heater in the presence of flammable vapor accumulation
  • Meets 40 ng/J NOx requirements
  • Premium grade anode rod provides long-lasting tank protection
  • Enhanced flow brass drain valve
  • Temperature and pressure relief valve included
  • Low lead compliant
  • Exclusive Rheemglas tank lining resists corrosion and prolongs tank life

About This Brand

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