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Boiler Zone Controls

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544 Products

Grundfos
Grundfos TP40-160/2 Direct Coupled In-Line Circulator, Pump End Only, Bronze, 3/4 HP, 3,450 RPM, GF 40/43 Flange Mount
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$4,253.00
Only 1 In-Stock
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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.
2% Check Discount
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2% Check Discount
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.
$213.31
In-Stock
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Free Shipping
*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.
Grundfos
Grundfos - UPS15-58FC - 1/25 Horsepower - 3-Speed Circulation Pump - Cast Iron - GF 15/26 Flange - Hardwire - 115V/1 Phase - Integral Check Valve - MPN: 59896341
8% Buy This
$196.00
In-Stock
tekmar - 070 - Outdoor Sensor
8% Buy This
$44.00
Factory-Direct
tekmar - Classic Series - 518 - Thermostat - Non-Programmable - One Stage Heat
8% Buy This
$101.00
Factory-Direct
tekmar - 009 - Transformer - 120V AC to 24V AC
5% Buy This
$72.00
Factory-Direct
Learn More About Caleffi 127341AFG50
Caleffi FlowCal Compact Automatic Flow Balancing Valve, 1/2" NPT Male Connections, Low-Lead Brass
5% Buy This
$81.00
Factory-Direct
Learn More About Aprilaire 80
Aprilaire
Aprilaire - Model 80 - Steam Humidifier Canister - with O-ring - for Model 800 Steam Humidifiers
5% Buy This
$94.99
Subscription Eligible
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Subscription Eligible
*This product is Subscription Eligible and can be set up to auto-deliver filters to your home at a discounted price. You select the filter quality, delivery frequency, and quantity.
In-Stock
Subscription Eligible
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Subscription Eligible
*This product is Subscription Eligible and can be set up to auto-deliver filters to your home at a discounted price. You select the filter quality, delivery frequency, and quantity.
Learn More About Tekmar 012
tekmar - 012 - Adaptor Plate - For Enclosure S
5% Buy This
$27.00
Factory-Direct
Learn More About Triangle Tube INSRKIT84
$437.00
In-Stock
Free Shipping
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Free Shipping
*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.
Learn More About Grundfos 99412493
Grundfos
Grundfos - UP10-16 T PM BU/LC - 115V/1 Phase - MPN: 7562054
3% Buy This
$351.05
Factory-Direct
Free Shipping
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Free Shipping
*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.
Learn More About Caleffi 127349AF3G0
Caleffi FlowCal Compact Automatic Flow Balancing Valve, 1/2" Sweat Connections, Low-Lead Brass
3% Buy This
$82.00
Factory-Direct
Learn More About Caleffi 127359AF1G0
Caleffi FlowCal Compact Automatic Flow Balancing Valve, 3/4" Sweat Connections, Low-Lead Brass
3% Buy This
$87.00
Factory-Direct
Learn More About Caleffi 127359AF2G0
Caleffi FlowCal Compact Automatic Flow Balancing Valve, 3/4" Sweat Connections, Low-Lead Brass
3% Buy This
$87.00
Factory-Direct
Learn More About Taco 008-F6
Taco - 008-F6 - 1/25 Horse Power - Circulator Pump - Cast Iron - Standard Flange Connection
3% Buy This
$201.96
In-Stock
Free Shipping
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Free Shipping
*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.
Learn More About Taco Z075C2-2
Taco - Z075C2-2 - 3/4" Sweat Connection - Zone Valve - Brass - Normally Closed
3% Buy This
$138.89
In-Stock
Learn More About Tekmar 079
tekmar - 079 - Slab Sensor - 10' Wire - For Use with Floor Heating Applications
3% Buy This
$41.00
Factory-Direct
Learn More About Tekmar 132-
tekmar - Classic Series - 132 - Pump Sequencer - Standby - Two Stage
3% Buy This
$804.00
Factory-Direct
Free Shipping
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Free Shipping
*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.
Learn More About Tekmar 521
tekmar - 521 - Thermostat - 7-Day Programmable - Two Stage Heat or One Stage Heat/ One stage Cool - Buttons
3% Buy This
$159.00
Factory-Direct
Learn More About Caleffi Z121000
Caleffi Z-One 24V Normally Closed Valve Actuator without AUX Switch, 18" Wire
3% Buy This
$86.00
In-Stock
Learn More About Caleffi Z200512
Caleffi Z-One 2-Way Straight NPT Valve Body, 3/4" Connections, 50 PSI, 2.5 Cv
3% Buy This
$56.00
Factory-Direct
Learn More About Caleffi Z200532
Caleffi Z-One 2-Way Straight Sweat Valve Body, 3/4" Connections, 50 PSI, 2.5 Cv
3% Buy This
$50.00
Factory-Direct
Learn More About Caleffi Z300513
Caleffi Z-One 3-Way Diverting NPT Valve Body, 3/4" Connections, 30 PSI, 3.5 Cv
3% Buy This
$69.00
Factory-Direct
Learn More About Caleffi 280175A
Caleffi ThermoMix High-Flow Boiler Protection Thermostatic Mixing Valve, Cartridge Sensor, 1-1/4" NPT Connections, 130 F Max, 14 Cv
3% Buy This
$297.00
Factory-Direct
Free Shipping
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Free Shipping
*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.

Maximize your boilers efficiency with proper zone controls. A properly zoned building will provide radiant comfort while keeping energy bills down. Check out our wide selection or contact our experts for all your zoning needs.