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Boilers

Discover the perfect blend of luxury, affordability, and top-tier performance with our Boiler Collection, designed to deliver the ultimate heating experience for both homes and businesses. Whether you're a homeowner, tradesperson, or contractor, we've got the perfect boiler for you.

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Parts & Accessories

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297 products

Black mechanical water feeder with brass connections, adjustment lever, and control switch mounted on side.

McDonnell & Miller 47-2 132800, Mechanical Water Feeder w/ #2 Switch (LWCO Function)

SKU #: MCDM472   |   MPN #: 132800
$1,513.03
$1,513.03 $0.00
MSRP: $1,987

Available in stock

Honeywell L4064B2228 fan and limit controller with metal mounting bracket and 5-inch temperature sensor probe.

Honeywell L4064B2228 Fan and Limit Controller w/ 125 F fan on/100 F fan off, 200 F high limit, 5" insertion

SKU #: HONL4064B2228   |   MPN #: L4064B2228
$184.10
$184.10 $0.00
MSRP: $367.13

Available in stock

Square blue-gray gasket with central circular opening and four corner mounting holes, shown against ruler for scale.

McDonnell & Miller 37-39 313200 Blow Down Valve/Strainer Gasket

SKU #: MCDM3739   |   MPN #: 313300
$18.15
$18.15 $0.00
MSRP: $18.15

Available in stock

Black cylindrical level control switch with metal probe connection and white label on top.

McDonnell & Miller 309100 11 Level Control Switch

SKU #: MCDM11   |   MPN #: 309100
$322.48
$322.48 $0.00
MSRP: $417

Available in stock

Dark gray circular gasket with central hole and eight evenly spaced mounting holes around the perimeter.

McDonnell & Miller 150-14H 325500, Gasket for 150

SKU #: MCDM15014H   |   MPN #: 325600
$20.47
$20.47 $0.00
MSRP: $20.47

Available in stock

Dual-needle boiler gauge with pressure (0-75 psi) and temperature (60-320°F) scales and black metal casing.

Pasco 1435 Boiler Gauge Pressure/Temperature

SKU #: PAS1435   |   MPN #: 1435
$23.67
$23.67 $0.00
MSRP: $23.67

Available in stock

McDonnell & Miller 150-14 flat face flange head gasket, circular rubber ring with gray finish.

McDonnell & Miller 150-14 325400 Head Gasket for Flat Face Flange Head

SKU #: MCDM15014   |   MPN #: 325700
$21.34
$21.34 $0.00
MSRP: $21.34

Available in stock

Black electric water feeder with red button on top, control panel, and two wire leads extending from side.

McDonnell & Miller 169400 Series 101-A Electric Water Feeder 120V

SKU #: MCDM101A120V   |   MPN #: 169400
$689.46
$689.46 $0.00
MSRP: $906

Available in stock

Black electric water feeder with red button, control panel, and two protruding electrical wires.

McDonnell & Miller 169500 Series 101-A-24v Electric Water Feeder 24v

SKU #: MCDM101A24V   |   MPN #: 169500
$906.09
$906.09 $0.00
MSRP: $1,195

Available in stock

Honeywell fan and limit controller with metal housing, thermal sensor probe, and push/pull automatic switch button.

Honeywell L4064B2236 Fan and Limit Controller w/ 125 F fan on/100 F fan off, 200 F high limit, 8" insertion

SKU #: HONL4064B2236   |   MPN #: L4064B2236
$191.27
$191.27 $0.00
MSRP: $374.24

Available in stock

Gray Honeywell pressure controller with "CUT IN" adjustment dial, mounting screw, and brass connection fitting.

Honeywell PA404A1033 Pressuretrol Controller .59 PSI

SKU #: HONPA404A1033   |   MPN #: PA404A1033
$268.41
$268.41 $0.00
MSRP: $536.50

Available in stock

Honeywell fan center control module with yellow and green components, black wiring, and SPDT switch mechanism.

Honeywell R8285A1048 40 VA Fan Center w/ SPDT switch including R8222B

SKU #: HONR8285A1048   |   MPN #: R8285A1048
$71.61
$71.61 $0.00
MSRP: $127.26

Available in stock

Metal fan relay with two wires extending from threaded terminal connection on front face.

Honeywell R8225D1003 24V Fan Relay w/ DPST Normally Open Switch

SKU #: HONR8225D1003   |   MPN #: R8225D1003
$133.56
$133.56 $0.00
MSRP: $258.42

Available in stock

Black cylindrical cutoff/alarm switch with mounting bracket and silver control panel.

McDonnell & Miller 110000 2 CUTOFF/ALARM SWITCH

SKU #: MCDM2   |   MPN #: 110000
$277.80
$277.80 $0.00
MSRP: $348

Available in stock

Black cast iron spherical boiler feed water valve with control module mounted on top and threaded connection port.

McDonnell & Miller 171702, Model 150S

SKU #: MCDM150S   |   MPN #: 171702
$1,283.86
$1,283.86 $0.00
MSRP: $1,699

Available in stock

Black cast iron float-type low water cut-off valve with cylindrical body and vertical control head mounted on top.

McDonnell & Miller 63 142400, Float Type Low Water Cut-Off (Steam or Water)

SKU #: MCDM63   |   MPN #: 142400
$877.49
$877.49 $0.00
MSRP: $1,120

Available in stock

Brass probe assembly with white ceramic tube and threaded metal connector for PS 800/850 boiler systems.

McDonnell & Miller 354081 Probe Standard Pa-800, Use with PS 800, 850

SKU #: MCDMPA800   |   MPN #: 354081
$119.06
$119.06 $0.00
MSRP: $145

Available in stock

Brass lower quick hookup fitting with male NPT threads and gray connector nut.

McDonnell & Miller SA159-24 349500, Lower Quick Hookup Fittings for 42A, 47, 64A, 67

SKU #: MCDMSA15924   |   MPN #: 349500
$235.69
$235.69 $0.00
MSRP: $297

Available in stock

Green Taco X-Pump Block with digital display panel, dual control knobs, and attached power cord.

Taco XPB-1 X-Pump Block, 1/25 HP

SKU #: TACXPB1   |   MPN #: XPB-1
$3,444.47
$3,444.47 $0.00
MSRP: $4,524.20

Special Order. Expect 4-6 weeks for delivery, subject to change

Burnham Boilers conversion kit containing brass fittings, connectors, and adjustment tools for natural gas to liquid propane

Burnham Boilers 110928-01 Natural Gas to Liquid Propane Conversion Kit (3-6 Section)

SKU #: BUR11092801   |   MPN #: 110928-01
$357.59
$357.59 $0.00
MSRP: $357.59

Special Order. Expect 4-6 weeks for delivery, subject to change

Boilers You Can Count On

Step into a world of unmatched comfort with our boilers for sale, designed to transform any space into a warm, inviting haven. We believe that luxury and quality should be accessible to everyone, which is why our new boilers are competitively priced without compromising on top-tier craftsmanship.

Whether you're looking to upgrade to an energy-efficient boiler or need a reliable solution for your residential heating needs, we’ve got you covered. Explore options like our combination boilers for versatile efficiency, hydronic boilers for consistent heating, or durable steam boilers for robust performance.

Comprehensive Selection Backed by Trusted Brands

Our extensive range of new boilers features top names in the industry, including Caleffi, Danfoss, Zilmet, Honeywell, and more. With a focus on quality and performance, these industry leaders ensure every product delivers dependable results.

We also provide essential add-ons like expansion tanks to complete your heating system. Whether you're upgrading a small residential space or outfitting a larger property, we have tailored solutions to fit your budget and project needs. With competitive pricing and a wide range of categories, we’ll help you find the perfect energy-efficient boiler.

Have questions or need assistance? Contact us today for expert advice on specs or model recommendations.
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