91 Telson Rd., Markham, Ontario, l3R 1E4

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Product overview

--ENERGY STAR® Qualified
--Energy Factor of .82 for Natural Gas and Propane
--Built-in Rinnai Circ-LogicTM recirculation program cycles an external pump at pre-set intervals and temperatures to maximize efficiency and comfort
--Certified for Installation in Manufactured (Mobile) Homes
--Enhanced scale detection lessens possibility of serious, long-term damage to unit
--Temperature lock function prevents accidental or unauthorized changes to water temperature

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    Technical Specifications


    Width: 14 Inches (355.6 mm)

    Height: 23 Inches (584.2 mm)

    Depth: 9 Inches (228.6 mm)


    46.3 lbs (21.0 kg)

    Installation Type


    Minimum/Maximum BTU

    10,300 / 199,000 Natural Gas and Propane

    Energy Factor

    0.82 for Natural Gas and Propane

    Temperature Range

    Residential: 98°F – 140°F (37°C – 60°C)

    Commercial: 98°F – 185°F (37°C – 85°C)**

    Minimum Activation Rate

    0.4 gpm (1.5 lpm)

    Flow Rate (70° / 50° Temperature Rise)

    4.7 / 6.6 gpm (17.8 / 29.2 lpm)

    Hot Water Flow Rate Range

    0.26 – 9.8 gpm (0.98 – 37.1 lpm)


    Standard: MC-91-2US

    Optional: MC-100-1, BC-100V-1, MC-195T-US, MCC-91-2

    Ultra Lox NOx


    Warranty (Residential)*

    ​Limited 12-year on heat exchanger, 5-year on parts, 1-year on labor (5-year optional on labor)

    Warranty (Commercial)*

    ​Limited 5-year on heat exchanger, 5-year on parts, 1-year on labor (2-year optional on labor)

    Mobile Home Certified


    Valves Shipped in Box


    High Altitude Approved

    Up to 10,200 ft. (3,109 m)


    ​AHRI and CSA

    Venting Options


    Tankless Rack System (TRS/TRW) Compatible


    1/2" Gas Line Compatible***