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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.

Water Boilers

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Boiler Expansion Tanks

Valves

Parts & Accessories

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297 products

Zilmet Activflo Solo water conditioner cartridge with threaded male connector and black cap end.

Zilmet ZAF012MF 1/2'' MNPT X 1/2'' FNPT Activflo Solo Water Conditioner

SKU #: ZILZAF012MF   |   MPN #: ZAF012MF
$145.40
$145.40 $0.00
MSRP: $910.98

Available in stock

Two Legend Valve air pressure testers with round dial gauges, one with side mount and one with end mount brass connection.

Legend Valve T-820 800-667 Air Pressure Tester End Mount

SKU #: LEG800667   |   MPN #: 800-667
$35.75
$35.75 $0.00
MSRP: $51.58

Available in stock

Brass log lighter key with oval handle plate and cylindrical stem for fireplace valve operation.

Legend Valve 12": Chrome Log Lighter Key

SKU #: LEG102852   |   MPN #: 102-852
$17.31
$17.31 $0.00
MSRP: $17.49

Available in stock

Chrome vacuum breaker valve with threaded brass connections and self-draining mechanism.

Legend Valve T-557C 3/4" Self Draining Brass Vacuum Breaker in Chrome, #107-199

SKU #: LEG107199   |   MPN #: 107-199
$15.49
$15.49 $0.00
MSRP: $15.49

Available in stock

Brass vacuum breaker valve with female threaded connection and male outlet, featuring ribbed grip band and small drain hole.

Legend Valve T-557 3/4" Self Draining Brass Vacuum Breaker, #107-193

SKU #: LEG107193   |   MPN #: 107-193
$15.64
$15.64 $0.00
MSRP: $15.64

Available in stock

Brass service valve with two yellow ball shut-off handles and threaded connections for expansion tank installation.

Webstone 41672 Pro-Pal Expansion Tank Pro Service Valve, 1/2" FIP x MIP x FIP

SKU #: WEBSTH41672   |   MPN #: H-41672
$60.60
$60.60 $0.00
MSRP: $72.42

Available in stock

Gray Caleffi Zone Relay control module with digital display panel and terminal connectors on right side.

Caleffi ZSR104 Z-One 4 zone pump Control

SKU #: CALEZSR104   |   MPN #: ZSR104
$234.04
$234.04 $259.30
MSRP: $338

Available in stock

Chrome straight valve with two compression fittings, one larger and one smaller, shown from above against white background.

STRAIGHT VALVE 1/2 COMP X 3/8 OD COMP

SKU #: BRCOCR14XC   |   MPN #: G2CR14
$18.64
$18.64 $0.00
MSRP: $29.71

Available in stock

Chrome angled PEX barb connector with 1/2 inch and 3/8 inch ports in clear plastic packaging.

PEX 1/2 BARB X 3/8 OD ANG STP Chrome PLB104XP

SKU #: PEXR19C   |   MPN #: PLB104X P
$14.34
$14.34 $0.00
MSRP: $28.72

Available in stock

Plumbshop Water Stop angle valve with 1/2 inch NOM push connect and 3/8 inch OD compression fitting in clear retail packaging

1/2 NOM PUSH CONNECT X 3/8 OD COMP ANGLE R19

SKU #: BRCPLB101XP   |   MPN #: PLB101
$16.20
$16.20 $0.00
MSRP: $45.43

Available in stock

Caleffi Z56P zone valve with gray and black actuator head and brass body with 1" press fittings.

Caleffi Z56P Z-One Zone Valve with Terminal Connection and 1" Press Fittings

SKU #: CALEZ56P   |   MPN #: Z56P
$244.54
$244.54 $0.00
MSRP: $322

Available in stock

Brass boiler fill valve with gray plastic cap and adjustment knob, 1/2" connections on sides and bottom.

Zilmet ZU0007 1/2'' Boiler Fill Valve

SKU #: ZILZU0007   |   MPN #: ZU0007
$123.69
$123.69 $0.00
MSRP: $347

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

White wall-mounted thermostat dial with numbered scale 1-5 connected by capillary tube to gray remote sensor bulb.

Danfoss RA2000 Wall Mount Operator W/ Combined Remote Mounted Sensor & Dial Capillary Tube 013G8568

SKU #: DANF013G8568   |   MPN #: 013G8568
$258.68
$258.68 $0.00
MSRP: $290.65

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

Five brass cylindrical auto-vent valves with domed tops and threaded bases arranged in two rows.

Maid-O'-Mist #67 Series Auto-Vent - 5 Pack

SKU #: MAI67x5   |   MPN #: No. 67
$102.87
$102.87 $0.00
MSRP: $123.10

Available in stock

Five silver metal auto-vent cylinders with threaded bases and top valves arranged in two rows.

Maid-O'-Mist #75 Series Auto-Vent - 5 Pack

SKU #: MAI75x5   |   MPN #: No. 75
$304.85
$304.85 $0.00
MSRP: $376.90

Available in stock

Cylindrical metal water conditioner with threaded connectors on both ends and red ActivFlo branding.

Zilmet ZAF010 ActivFlo House Water Conditioner

SKU #: ZILZAF010   |   MPN #: ZAF010
$680.13
$680.13 $0.00
MSRP: $3,322.28

Available in stock

Brass dual check valve with 1/2" threaded inlet and union connection, forged construction with internal spring mechanisms.

Legend Valve 1/2" T-457 Forged Brass Dual Check Valve

SKU #: LEGT45712   |   MPN #: 115-103NL
$62.43
$62.43 $0.00
MSRP: $94.58

Available in stock

Black cylindrical electronic water cut-off switch with brass fitting and probe sensor attached.

McDonnell & Miller RB-24E 144692, Electronic, 24V Low Water Cut-Off - (Water)

SKU #: MCDMRB24E   |   MPN #: 144692
$178.45
$178.45 $0.00
MSRP: $221

Available in stock

Two dial thermometers with black stems mounted side by side, displaying temperature scales.

Pasco 1457 Dial Type Thermometer

SKU #: PAS1457   |   MPN #: 1457
$38.47
$38.47 $0.00
MSRP: $39.20

Available in stock

Black and gray McDonnell & Miller water feeder with brass fittings and red indicator light on front panel.

McDonnell & Miller WFE-24V, Uni-Match Universal Water Feeder (24V)

SKU #: MCDMWFE24V   |   MPN #: 169550
$418.17
$418.17 $0.00
MSRP: $536

Available in stock

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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