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Weil-McLain (236)

Noritz (4)

Crown Boiler Co. (137)

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Medium

Medium refers to the substance that carries heat through the heating system. Systems are either designed to use either Hot Water or Steam as a medium, and components are usually specific to one or the other.

Hot Water (453)

Steam (105)

DOE Heating Capacity (BTU)

Also referred to as Gross Output, this is the output of a boiler after accounting for combustion efficiency. We recommend sizing hot water boilers based on the DOE Heating Capacity.

84 - 40083 (14)

40084 - 80083 (83)

80084 - 120083 (129)

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160084 - 200083 (83)

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2400084 - 2440083 (1)

2840084+ (1)

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AFUE (%)

AFUE (Annual Fuel Utilization Efficiency) measures the efficiency of combustion equipment over the entire heating season, and is calculated by dividing the amount of energy that is actually heating your home by the total energy contained in the fuel used by the boiler/furnace. Learn More

81 - 82 (122)

83 - 84 (243)

85 - 86 (38)

91 - 92 (10)

93 - 94 (19)

95 - 96 (97)

Fuel Type

To create heat, some form of fuel is required. Fuel Type specifies what the product uses as an input to create heat.

Liquid Propane (135)

Natural Gas (417)

Oil/Natural Gas (6)

Vent Type

Products that use combustion (burning) of fuel to create heat also create potentially dangerous gasses that need to be exhausted (AKA "Vented"). Depending on the product, venting can be done via a chimney, through a side wall, or use a second vent to provide fresh air to the appliance.

Chimney Vent (330)

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Power Vent (85)

DHW Production

DHW (Domestic Hot Water) is potable water for uses other than space heat. Some boilers are able to provide DHW "out of the box", while others can do so with the purchase of optional accessories.

Available (20)

No (482)

Yes (56)

Includes Pump

No (202)

Yes (346)

Learn More About Crown Boiler Co. SHADW120HNZ10U

Crown Boiler Shadow - 112k BTU - 94% AFUE - Hot Water Gas Boiler - Direct Vent - HIGH ALTITUDE for 4,500 to 10,200 ft.

Model: SHADW120HNZ10U

Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 120K BTU Gross Input, 112K BTU DOE Capacity, 97K BTU Net IBR Capacity.

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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.

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Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.