Navien Condensing Gas Combination Boiler CH-ASME


  • Super condensing efficiency
  • Dual stainless steel heat exchangers
  • Low NOx emissions (≤20ppm)
  • SCH 40, 3” PVC venting up to 100’
  • Gas-Air Ratio Control
  • Automatic water filling system
  • Remote controller included

Navien CH-180 ASME Condensing Gas Combination Boiler Features

  • Ultra Condensing Efficiency

    Superb Condensing Efficiency & PVC Venting

    • Equipped with dual stainless steel heat exchangers.
    • Offers a low cost PVC venting solution for fast, simplified installation.
    • PVC venting up to 100 feet with a maximum of six elbows (each elbow deduct 5′ off of venting length).
  • Two Stainless Steel Heat Exchangers

    Where Technology Meets Ecology, Combination Boiler

    • The ideal solution for customers who need both domestic hot water and a space heating application.
    • Heats water when needed, making it environmentally sound as well as cost efficient.
  • Low NOx Emissions (≤ 20ppm)

    Hydronic Heating Benefits

    • Clean: little chance to cause dust or lower humidity because there is no air movement.
    • Silent: offers silent heating because no blowers are needed for forced circulation.
    • Comfort: keeps floors warm but indoor air fresh, making people feel warm and comfortable.
    • Coverage: radiant heat makes heating from floor to ceiling possible.
    • Economical: radiant heat in the floors can transmit warmth throughout the house hours after turning off the heater.
  • Two Stainless Steel Heat Exchangers

    Extended Life, Stainless Steel Heat Exchanger

    • Integrated primary and secondary heat exchangers prevent corrosion.
    • Ensures a longer life expectancy over copper heat exchangers.
    • Stainless steel components maintain consistency, even during long period of use.
  • Better Adaptability to Gas System

    Eco-friendly, Premixed Burner

    • Modulates both air and gas ratios required for optimal combustion.
    • The ingenious built-in CO monitoring system will shut the Combi unit down in the event of excessive CO gases build up that can cause a hazardous condition.
  • Field Convertible

    Leak Detector

    • Prevents damages to water heaters as well as personal property.
  • Ultra Condensing Efficiency

    Automatic Water Filling System

    • Automatically fills water into space heating pipes when the unit senses a water shortage.
  • Ultra Condensing Efficiency

    Powerful Anti-Freeze Feature

    • The Combi’s built-in Control System is designed to keep the unit’s plumbing frost free in winter conditions.
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    Intelligent Remote Control System
    (Included in every unit)

    • Aesthetic Appearance Suitable for Any Household’ s Interior Design
    • High-Precision Water Temperature Control in 1˚F Increments
    • 24 Hour Time Scheduling for Space Heating
    • Easy-to-Use Button Type Control
    • Easy to read LCD display
    Data Field CH-180ASME
    Heat Capacity (Input) Min : 17,000 Btu/hr Max: 150,000 Btu/hr
    Flow Rate(DHW) 77⁰F Rise 3.4 GPM
    Dimensions 17” × 28” × 12”
    CAAFUE Natural Gas 91%
    Propane Gas 92%
    Weight 74 lbs
    Installation Type Indoor / Outdoor Wall-Hung
    Venting Type Direct Vent
    Ignition Electronic Ignition
    DHW Pressure (min-max) 15 – 150 PSI
    Heating Pressure (min-max) 7 – 30 PSI
    Gas Supply Pressure (from source : min-max) Natural Gas 5.5”W.C. ~ 10.5”W.C.
    Propane Gas 10.5”W.C. ~ 13.5”W.C.
    Minimum Flow Rate(DHW) 0.5 GPM
    Connection Sizes Heating Supply / Return 1” NPT
    DHW Inlet / Outlet 3/4” NPT
    Auto Feeder 1/2” NPT
    Gas Inlet 3/4” NPT
    Power Supply Main Supply 120VAC, 200W (max 2A)
    Heat Exchangers Primary Heat Exchanger : Stainless Steel Condensing Heat Exchanger : Stainless Steel
    Venting (o” Clearance) Exhaust (¢3″) SCH 40 3″ PVC, SCH 40 3″ Polypropylene, SCH 80 3″ CPVC
    Intake (¢3″) PVC, Flex Aluminum, Flex Stainless Steel, ABS