Boiler Zone Controls

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545 Products

Learn More About Tekmar 334
tekmar - Designer Series - 334 - Zone Manager - Compatible with tekmarNet 2 - Four Zones - Cooling and Fan Relays - For Use with tekmarNet 2 Thermostats Only
$618.00
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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 may apply, see our full shipping policy for more details.
Learn More About Tekmar 401-0
tekmar - Performance Series - 401 - House Control - Compatible with tekmarNet 2 - Four Zone Pumps - Outdoor Temperature Reset - Boiler - DHW - Setpoint
$786.00
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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 may apply, see our full shipping policy for more details.
Learn More About Tekmar 402
tekmar - Performance Series - 402 - House Control - Compatible with tekmarNet 2 - Four Zone Valves - Outdoor Temperature Reset - Boiler - DHW - Setpoint - Mixing
$909.00
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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 may apply, see our full shipping policy for more details.
Learn More About Tekmar 423
tekmar - Designer Series - 423 - Universal Reset Module - Compatible with tekmarNet 4 - Outdoor Temperature Reset - Two Boilers - Domestic Hot Water - Setpoint
$1,034.00
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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 may apply, see our full shipping policy for more details.
2% Check Discount
Learn More About 2% Check Discount
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.
Learn More About Tekmar 482
tekmar - 482 - Gateway - Compatible with tekmarNet 2 and tekmarNet 4 - RS232 for Home Automation Systems
$1,358.00
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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 may apply, see our full shipping policy for more details.
2% Check Discount
Learn More About 2% Check Discount
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.
Learn More About Tekmar 480
tekmar - 480 - User Switch - Compatible with tekmarNet 2 and tekmarNet 4 - Three Inputs - Programmable - For Use with tekmarNet Thermostats Only
$258.00
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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 may apply, see our full shipping policy for more details.
Learn More About Tekmar 073
tekmar - 073 - Slab Sensor - 40' Wire - For Use with Outdoor Snow Melting Slabs
$204.00
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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 may apply, see our full shipping policy for more details.
Learn More About Tekmar 077
tekmar - 077 - Indoor Sensor - Cover Plate - For Attachment to a 2" x 4" Electrical Box
$86.00
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Learn More About Tekmar 080
tekmar - 080 - Universal Sensor Enclosure - For Mounting a Universal Sensor into 3/8" ID Well or onto a 1"-4" Pipe
$57.00
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Learn More About Tekmar 081
tekmar - 081 - Three Outdoor Sensor Module - For Installation in a tekmar Outdoor Sensor
$75.00
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Learn More About Tekmar 083
tekmar - 083 - Duct Sensor - 6" Probe
$76.00
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Learn More About Tekmar 091
tekmar - Classic Series - 091 - Snow/Ice Sensor Socket - For Mounting tekmar Snow/Ice Sensors
$200.00
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Learn More About Tekmar 094
tekmar - Classic Series - 094 - Snow/Ice Sensor - 208' Wire - For Use with tekmar Snow Melting Controls
$1,376.00
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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 may apply, see our full shipping policy for more details.
2% Check Discount
Learn More About 2% Check Discount
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.
Learn More About Caleffi 521400AC
Caleffi MixingCal 3-Way Thermostatic Mixing Valve w/ checks, 1/2" NPT Connections, 3 Cv
$184.00
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Learn More About Tekmar 532
tekmar - Performance Series - 532 - Thermostat - Non-Programmable - tN2/tN4 Compatible - One Stage Heat
$142.00
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Learn More About Tekmar 554
tekmar - 554 - Thermostat - 7-Day Programmable - Compatible with tekmarNet - One Stage Heat, One Stage Cool - Touchscreen
$290.00
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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 may apply, see our full shipping policy for more details.
Learn More About Caleffi 626600A
Caleffi 1" NPT Male Universal Flow Switch with NEMA 5 Enclosure, Suitable for 1" to 8" Pipe, used with heating & air conditioning systems
$200.00
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Learn More About Caleffi 644269A
Caleffi 2-Way Straight Motorized Ball Zone Valve, 1" Sweat Connections, 13 Cv
$277.00
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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 may apply, see our full shipping policy for more details.
Learn More About Caleffi 644350A 3BY
Caleffi 3-Way Bypass Motorized Ball Zone Valve, 3/4" NPT Connections, 12 Cv Ball, 1.5 Cv Bypass
$282.00
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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 may apply, see our full shipping policy for more details.
Learn More About Caleffi 644359A
Caleffi 3-Way Diverting Motorized Ball Zone Valve, 3/4" Sweat Connections, 4.5 Cv
$291.00
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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 may apply, see our full shipping policy for more details.
Learn More About Caleffi 644360A 3BY
Caleffi 3-Way Bypass Motorized Ball Zone Valve, 1" NPT Connections, 12 Cv Ball, 1.5 Cv Bypass
$328.00
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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 656414
Caleffi Low Current Draw Thermoelectric Actuator with AUX Micro Switch, 24V, 31.5" Wire Lead, used on Distribution Manifolds
$80.00
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Learn More About Caleffi NA51069
Caleffi In-line Flow Check Valve, 1" Sweat Union Connections
$58.00
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Learn More About Caleffi 519599A
Caleffi Differential Pressure By-pass Valve, 3/4" Sweat Inlet with 3/4" Sweat Outlet
$101.00
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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.