ST
RHEEM-RUUD

Commercial Electric Water Heater, 85.0 gal. Tank Capacity, 208V, 18,000 Total Watts

  • Item # 21XP38
  • My Part #
  • Mfr. Model # ES85-18-G
  • Catalog Page # 2706
  • UNSPSC # 40101826
Commercial Electric Water Heater, 85.0 gal. Tank Capacity, 208V, 18,000 Total Watts close
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  • Shipping Weight 332.0 lbs.
Country of Origin USA Country of Origin is subject to change.
Note: Product availability is real-time updated and adjusted continuously. The product will be reserved for you when you complete your order. More
  • This item is restricted for international sale.
  • WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Product Details

This Rheem-Rudd electric water heater provides high hot water recovery in applications requiring large quantities of hot water. The System Sentinel feature provides a diagnostic panel with LEDs that correspond to the number, location, and status of each element. Multiple screw-in type stainless steel elements resist burn out and corrosion.

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Technical Specs

  • Item Electric Water Heater
  • Commercial / Residential Commercial
  • Water Heater Design Whole House
  • Tank Capacity - Plumbing 85.0 gal.
  • Voltage - Water Heaters 208
  • Phase - Water Heaters 1/3
  • Total Watts 18,000
  • Overall Height - Water Heaters 57-11/16"
  • Jacket Dia. 28-1/4"
  • Overall Width 34"
  • Recovery @ 90 F Rise 83.0 gph
  • Item - Water Heaters Electric Water Heater
  • Recovery @ 50 F Rise 149 gph
  • Recovery @ 70 F Rise 106 gph
  • Recovery @ 100 F Rise 74 gph
  • Recovery @ 110 F Rise 68 gph
  • Recovery @ 120 F Rise 62 gph
  • Recovery @ 130 F Rise 57 gph
  • Recovery @ 140 F Rise 53 gph
  • Height to Cold Side Connection 4-3/4"
  • Height to Hot Side Connection 57-11/16"
  • Max. Pressure 150 psi
  • Connection Location Side
  • Water Connection 1-1/2" NPT
  • Amps AC 87 for 1 Phase, 50 for 3 Phase
  • Number of Elements 6
  • Temp. Range 120 Degrees to 180 Degrees F
  • Manufacturers Warranty Length 3 yr. Limited Tank, 1 yr. Limited Parts
  • Features Inputs of 3KW to 108KW, Four Voltages to choose from, Lifeguard Stainless Steel Elements, 98% Thermal Effeciency, System Sentenal, Full Port/Full Flow Brass Drain Valve
  • Includes T and P Valve, Full Port/Full Flow Brass Drain Valve, System Sentinal
  • Standards UL Certified
  • Compliance Tested According to DOE Test Procedures and Exceed the Minimum Energy Factor Requirements of Current ASHRAE Standards, Exceeds Energy Effeciency Codes of all States. Design Certified by Underwriters Laboratory (UL) to Meet UL Standard 1453 and UL/NSF005.
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Compliance and Restrictions

  • This product has been certified by a third party to be compliant with the “Safe Drinking Water Act” requirements for low lead in potable (human consumption - drinking and cooking) and non-potable water applications (non-human consumption).

  • This item is restricted for international sale.


  • Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Replacement Parts

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