Crown Boiler Gas Boilers

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Crown Boiler offers a full lineup of natural gas and liquid propane boilers, in both hot water and steam options. Shop our selection of Crown Boiler gas boilers today and find the perfect one for your home.

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Net I=B=R Capacity (BTU)

I=B=R, also referred to as Net Output or AHRI Capacity, is the rated heat output of a boiler after accounting for combustion efficiency, piping loss, and an extra pickup factor. We recommend sizing steam boilers based on the I=B=R rating.

20000 - 39999 (2)

40000 - 59999 (11)

60000 - 79999 (18)

80000 - 99999 (11)

100000 - 119999 (16)

120000 - 139999 (18)

140000 - 159999 (19)

160000 - 179999 (14)

180000 - 199999 (3)

200000 - 219999 (12)

220000 - 239999 (1)

240000 - 259999 (2)

260000 - 279999 (3)

300000 - 319999 (1)

320000 - 339999 (1)

400000 - 419999 (1)

520000 - 539999 (1)

620000 - 639999 (1)

780000 - 799999 (1)

940000+ (1)

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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.

30000 - 49999 (2)

50000 - 69999 (11)

70000 - 89999 (16)

90000 - 109999 (7)

110000 - 129999 (16)

130000 - 149999 (19)

150000 - 169999 (7)

170000 - 189999 (17)

190000 - 209999 (13)

210000 - 229999 (3)

230000 - 249999 (9)

250000 - 269999 (4)

270000 - 289999 (2)

290000 - 309999 (4)

350000 - 369999 (1)

370000 - 389999 (1)

470000 - 489999 (1)

590000 - 609999 (1)

710000 - 729999 (1)

890000 - 909999 (1)

1090000+ (1)

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Maximum Input Capacity (BTU)

The Maximum Input Capacity describes how quickly the appliance will use fuel when delivering it's maximum capacity. The units may change depending on the fuel being used.

30000 - 119999 (34)

120000 - 209999 (53)

210000 - 299999 (33)

300000 - 389999 (10)

390000 - 479999 (2)

570000 - 659999 (1)

660000 - 749999 (1)

840000 - 929999 (1)

1020000 - 1109999 (1)

1290000+ (1)

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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.

No (107)

Yes (30)

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 (3)

82 (19)

83 (24)

84 (34)

85 (20)

93 (1)

94 (4)

95 (13)

96 (2)

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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 (91)

Direct Vent (22)

Power Vent (24)

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 (112)

Steam (25)

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 (50)

Natural Gas (81)

Oil/Natural Gas (6)

Modulating/Staging

Stages are unique speeds or levels that equipment can operate at. More stages allow for better fine-tuned control of output, which improves comfort and efficiency. Modulating equipment can operate across a range of levels, giving the highest level of fine-tuned control. Learn More

Modulating (22)

Single Stage (115)

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Aruba 5 (30)

Bali 2 (24)

Bermuda (25)

Cayman (30)

FW (6)

Phantom (9)

Raptor (7)

Shadow (6)

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Brand

Crown Boiler Co. (137)

Learn More About Crown Boiler Co. SHADW180HNZ1SU

Crown Boiler Shadow - 170k BTU - 94% AFUE - Hot Water Gas Boiler - Direct Vent - Up to 2,000 ft. Altitude

Model: SHADW180HNZ1SU

Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 180K BTU Gross Input, 170K BTU DOE Capacity, 148K BTU Net IBR Capacity.

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