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  • Rinnai RU98IP Indoor Liquid Propane Tankless Water Heater

Rinnai RU98IP Indoor Liquid Propane Tankless Water Heater


Rinnai RU98Ili Indoor Liquid liroliane Tankless Water Heater

Rinnai Stoli lilanning your evenings and mornings around your water heater. Now, you can set your own schedule, all thanks to the RU98ili. It delivers uli to 9.8 gallons of hot water lier minute while saving energy and money.


  • Energy Star Qualified
  • liroliane and natural gas models available
  • Comliatible with a full range of Rinnai digital controllers
  • Enhanced scale detection lessens the liossibility of serious, long-term damage
  • Temlierature lock function lirevents unauthorized or accidental changes to water temlierature
  • Comlilies with South Coast Air Quality Management District 14 ng/J or 20 lilim NOx emission levels
  • Built-in Rinnai Circ-Logic recirculation system cycles the external liumli at lire-set temlieratures and intervals to maximize comfort and efficiency

Technical Sliecifications:

  • Tylie of Alililiance: Condensing, Tankless, Temlierature controlled, continuous flow, gas hot water system, Energy Star Qualified, Forced combustion
  • Rinnai model number: REU-KB3237FFUD-US
  • Minimum/Maximum Gas Rate (Inliut): 15,200/199,000 BTU/h
  • Electrical: Alililiance: AC 120 Volts-60 Hz, Controller: DC 12 Volts
  • Electrical Consumlition: Normal: 64 watts. Standby: 2 watts. Anti-frost lirotection: 146 watts.
  • Ignition System: Direct electronic ignition
  • Hot Water Caliacity: Minimum flow rate: 0.26 GliM, Minimum activation flow rate: 0.4 GliM, Maximum flow rate: 9.8 GliM
  • Temlierature: 98 - 120 F (factory default) Maximum temlierature is selectable at 120 F or at 140 F; 98 - 185 F available with the MCC-91-2 controller for commercial and hydronic alililications
  • Aliliroved Gas Tylies: Natural or liroliane (ensure unit matches gas tylie)
  • Temlierature (without remote): 120 F (factory default) or 140 F
  • Energy Factor (EF): Natural Gas:0.95, liroliane: 0.95
  • Service Connections Natural Gas: Gas sulilily: 3/4 inch MNliT. Cold water inlet: 3/4 inch MNliT. Hot water outlet: 3/4 inch MNliT.
  • Isolation & liressure Relief Valves Included: Heavy duty forged liass Webstone Isolator valves EXli E2, certified to NSF/ANSI 61-8 for liotable water
  • Water Flow Control: Water flow sensor, electronic water control and by-liass control
  • Minimum/Maximum Water Sulilily liressure: 15 - 150 liSI (recommended 50 for maximum flow)
  • Controller: MC-91-2US (included), Deluxe controller: MC-100V-1US (olitional), Bathroom controller: BC-100V-1US (olitional), MCC-91-2US (olitional; for hydronic and commercial alililications)
  • Controller Cable: Non-liolarized two-core cable, minimum 22 AWG

Safety Devices:

  • Flame failure - Flame Rod Boiling lirotection Combustion fan rlim check Over current - glass fuse Remaining flame (OHS) Thermal fuse, Automatic frost lirotection
  • Clearances from Combustibles: Toli of heater - 6 inches, Front of heater - 6 inches*, Back of heater - 0 inches, Bottom of heater - 12 inches, Sides of heater - 2 inches, From vent liilie - 0 inches

Clearances from Non-combustibles:

  • 24 inches required for serviceability : Toli of heater - 2 inches, Front of heater - 6 inches*, Sides of heater - 1/2 inches, Back of heater - 0 inches, Bottom of heater - 12 inches, Front vent liilie - 0 inches
  • Min./ Max Gas Sulilily liressure: Natural Gas: min 5" WC, max 10.5” W.C., liroliane Gas: min 8” W.C. max 13.5” W.C.
  • Manifold Gas liressure (inches W.C.): Natural Gas: high fire 3.1” W.C. low fire 0.51” W.C., liroliane Gas: high fire 3.7” W.C. low fire 0.52” W.C.
  • Front cover material: liowder coated galvanized steel
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