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Combi Boiler Combi Boiler
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    • Combi Boiler Combi Boiler

    Combi Boiler

    TWO heating solutions
    IN ONE EFFICIENT PACKAGE

    The new Rheem® Prestige® Series High Efficiency Combination Boilers offer both space heating and domestic hot water in a single unit. So whether you need the living room to be extra cozy for movie night or you’re ready for a hot relaxing bath, the Combi has you covered.

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    High Efficiency

    A 95% AFUE rating means energy savings and potential rebates

    Two In One

    Enjoy both space heating and domestic hot water from one durable unit, from a brand you trust

    Saves Energy

    It only produces domestic hot water when you need it, so you save energy and money

    Saves Space

    A single combi boiler frees up valuable space by replacing your boiler and tank water heater

    How It Works

    The Combi Boiler provides domestic hot water and space heating in two separate loops.

    Rheem Combi Boiler Features & Benefits

    • 95% AFUE

      Delivers 95 BTUs of heat for every 100 BTUs of gas input, qualifying some customers for local and/or utility rebates
    • Lower Installation Costs

      Installs with 2″ and 3″ Schedule 40 PVC venting, which is easier to work with and lower cost than stainless steel, saving you money and time
    • Max Vent Lengths of 100' for 3", 50' for 2"

      Means more flexible and versatile installation options2
    • Vent With Room Air

      Saves money and time on installation3

    Savings

    Venting

    Close-up product picture of the Rheem combi boiler.
    Internal product view of the Rheem combination boiler.
    • Plate Heat Exchanger

      Transfers heat generated in the space heating process to the domestic water flow for continuous hot water
    • Separate Loops

      Keep water for space heating and domestic hot water in two separate loops
    • Outdoor Reset Sensor

      Tracks outdoor temperatures and overrides the heating set point as needed to keep the home comfortable when weather changes
    • Built-In Three-Speed Pump

      Offers convenience and performance
    • Auto-Boost

      Kicks in to provide extra heat if the thermostat set point has not been achieved in a reasonable time1
    • Built-In Auto Feeder

      Maintains hydronic loop pressure automatically between 12–30 psi

    Features

    More Spec Info

    Rheem Model Number RCBH-199DVLN
    RCBH-199DVLP    		 RCBH-180DVLN
    RCBH-180DVLP
    Gas Input Rate for Space Heating4
    (Heating Mode)    		 MAX 120,000 BTU/h 100,000 BTU/h
    MIN 18,000 BTU/h 18,000 BTU/h
    Gas Input Rate for Domestic Hot Water
    (DHW)    		 MAX 199,000 BTU/h 180,000 BTU/h
    MIN 18,000 BTU/h 18,000 BTU/h
    AFUE 95% 95%
    Turndown Ratio (Space Heating) 6.7:1 5.6:1
    Turndown Ratio (DHW) 11:1 10:1
    Continuous Flow Rate
    (DHW)    		 MAX 9.9 GPM 9.0 GPM
    45°F Rise 7.7 GPM 7.0 GPM
    77°F Rise 4.5 GPM 4.1 GPM
    Number of Bathrooms5 2–2.5 2
    Temp. Range Space Heating 100°F–180°F
    DHW 90°F–140°F
    Type Indoor Direct Vent
    Flue System Sealed Combustion Direct Vent or Room Air Intake
    Ignition System Direct Electronic Ignition / Automatic Flame Sensing
    Burner System Premixed Metal Fiber Burner
    Gas Valve System Air Ratio Valve
    Minimum Activation Flow Rate 0.5 GPM
    Minimum Continuous Flow Rate 0.4 GPM
    Internal Pipe Material STS 304, Copper Tubing (Primary and Secondary)
    Water Holding Capacity Under 2 Gallons
    Water Pressure6 MAX DHW 150 PSI / Heating 30 PSI
    MIN DHW 15 PSI / Heating 12 PSI
    Gas Pressure Nat. Gas 3.5″ WC to 10.5″ WC
    LP Gas 8.0″ WC to 14.0″ WC
    Materials Casing Cold Rolled Carbon Steel
    Heat Exchanger STS 304 Stainless Steel
    Safety Devices Flame Sensor, Overheat Cut Off Limit Switch, Gas Leak Detector,
    Water Leak Detector, Exhaust Thermistor, Pressure Sensor,
    Heating Supply Thermistor
    Warranty Residential – 10-Year Heat Exchanger,
    5-Year Parts, 1-Year Labor
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    Download Spec PDF

    Compatible With Hydronic Air Handlers

    The Combi Boiler works with hydronic air handlers, offering the ability to integrate air and water systems to maximize energy efficiency and minimize energy costs.

    LEARN MORE
    Angled product picture of the Rheem hydronic air handler which is compatible with Rheem's combination boilers.
    Find a Pro

    Enjoy Space Heating and Water Heating in One

    Bring home the comfort and savings of the Rheem Combi Boiler.