Natural Gas Boilers

Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 138K BTU Gross Input, 113K BTU DOE Capacity, 85K BTU Net IBR Capacity.
Item#: 24033
Brand: Crown Boiler Co.
$3,100.00
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 172K BTU Gross Input, 142K BTU DOE Capacity, 107K BTU Net IBR Capacity.
Item#: 24035
Brand: Crown Boiler Co.
$3,742.00
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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 map apply, see our full shipping policy for more details.
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 207K BTU Gross Input, 171K BTU DOE Capacity, 128K BTU Net IBR Capacity.
Item#: 24037
Brand: Crown Boiler Co.
$4,121.00
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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 map apply, see our full shipping policy for more details.
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 241K BTU Gross Input, 199K BTU DOE Capacity, 149K BTU Net IBR Capacity.
Item#: 24039
Brand: Crown Boiler Co.
$4,430.00
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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 map apply, see our full shipping policy for more details.
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 276K BTU Gross Input, 229K BTU DOE Capacity, 172K BTU Net IBR Capacity.
Item#: 24041
Brand: Crown Boiler Co.
$4,739.00
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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 map apply, see our full shipping policy for more details.
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 69K BTU Gross Input, 57K BTU DOE Capacity, 43K BTU Net IBR Capacity.
Item#: 24046
Brand: Crown Boiler Co.
$2,833.00
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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 map apply, see our full shipping policy for more details.
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Factory-Direct
Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 101K BTU Gross Input, 89K BTU DOE Capacity, 79K BTU Net IBR Capacity. Includes Circulator.
Item#: 37393
Model#: ZBR28-3
Brand: Bosch Thermotechnology
$3,394.00
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Factory-Direct
Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 132K BTU Gross Input, 117K BTU DOE Capacity, 103K BTU Net IBR Capacity. Includes Circulator.
Item#: 37394
Model#: ZBR35-3
Brand: Bosch Thermotechnology
$4,117.00
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Factory-Direct
Wall Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 152K BTU Gross Input, 134K BTU DOE Capacity, 117K BTU Net IBR Capacity. Includes Circulator.
Item#: 37396
Model#: ZBR42-3
Brand: Bosch Thermotechnology
$4,319.00
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Factory-Direct
Floor Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 290K BTU Gross Input, 260K BTU DOE Capacity, 226K BTU Net IBR Capacity.
Item#: 37565
Model#: GB162-80
Brand: Buderus
$7,528.00
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Factory-Direct
Floor Mounted, Condensing Boiler with Modulating Gas Valve. Ships Packaged. Ratings: 333K BTU Gross Input, 298K BTU DOE Capacity, 259K BTU Net IBR Capacity.
Item#: 37567
Model#: GB162-100
Brand: Buderus
$9,376.00
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Disassembled. Ratings: 105K BTU Gross Input, 87K BTU DOE Capacity, 65K BTU Net IBR Capacity.
Item#: 37667
Model#: KIN4LNI-LE2
Brand: Burnham
$3,223.81
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*This product qualifies for Free Lift Gate Service. Items over 100lbs normally ship via semi-truck. Select this service if you need the product lowered to the ground curbside. To learn more about Lift Gate Service, read our shipping policy.
Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Disassembled. Ratings: 140K BTU Gross Input, 115K BTU DOE Capacity, 86K BTU Net IBR Capacity.
Item#: 37669
Model#: KIN5LNI-LE2
Brand: Burnham
$3,808.28
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Disassembled. Ratings: 175K BTU Gross Input, 144K BTU DOE Capacity, 108K BTU Net IBR Capacity.
Item#: 37671
Model#: KIN6LNI-LE2
Brand: Burnham
$4,383.54
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Disassembled. Ratings: 210K BTU Gross Input, 173K BTU DOE Capacity, 130K BTU Net IBR Capacity.
Item#: 37673
Model#: KIN7LNI-LE2
Brand: Burnham
$4,452.00
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 105K BTU Gross Input, 89K BTU DOE Capacity, 77K BTU Net IBR Capacity. Includes Circulator.
Item#: 37772
Model#: ES24BNI-T
Brand: Burnham
$3,582.76
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 140K BTU Gross Input, 119K BTU DOE Capacity, 103K BTU Net IBR Capacity. Includes Circulator.
Item#: 37774
Model#: ES25BNI-T
Brand: Burnham
$4,010.18
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 175K BTU Gross Input, 149K BTU DOE Capacity, 130K BTU Net IBR Capacity. Includes Circulator.
Item#: 37776
Model#: ES26BNI-T
Brand: Burnham
$4,578.64
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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 map apply, see our full shipping policy for more details.
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*This product qualifies for Free Lift Gate Service. Items over 100lbs normally ship via semi-truck. Select this service if you need the product lowered to the ground curbside. To learn more about Lift Gate Service, read our shipping policy.
Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 210K BTU Gross Input, 178K BTU DOE Capacity, 155K BTU Net IBR Capacity. Includes Circulator.
Item#: 37778
Model#: ES27BNI-T
Brand: Burnham
$5,130.76
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 245K BTU Gross Input, 208K BTU DOE Capacity, 181K BTU Net IBR Capacity. Includes Circulator.
Item#: 37780
Model#: ES28BNI-T
Brand: Burnham
$5,605.48
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 280K BTU Gross Input, 208K BTU DOE Capacity, 207K BTU Net IBR Capacity. Includes Circulator.
Item#: 37782
Model#: ES29BNI-T
Brand: Burnham
$6,264.24
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 140K BTU Gross Input, 115K BTU DOE Capacity, 86K BTU Net IBR Capacity.
Item#: 37818
Model#: PIN5SNI-ME2
Brand: Burnham
$4,569.44
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Packaged. Ratings: 175K BTU Gross Input, 144K BTU DOE Capacity, 108K BTU Net IBR Capacity.
Item#: 37820
Model#: PIN6SNI-ME2
Brand: Burnham
$5,144.70
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Factory-Direct
Floor Mounted, Cast Iron Boiler with Single Stage Gas Valve. Ships Disassembled. Ratings: 245K BTU Gross Input, 202K BTU DOE Capacity, 152K BTU Net IBR Capacity.
Item#: 37824
Model#: KIN8LNI-LE2
Brand: Burnham
$5,457.03
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Factory-Direct