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Learn More About Tekmar 403
tekmar - Performance Series - 403 - House Control - Compatible with tekmarNet 2 - Four Zone Pumps - Outdoor Temperature Reset - Boiler - DHW - Setpoint - Mixing
$1,011.00
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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 153
tekmar - Classic Series - 153 - Mixing Setpoint Control - Floating Action
$434.00
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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 261-0
tekmar - Classic Series - 261 - Boiler Control - Outdoor Temperature Reset - Two Stage - Setpoint
$594.00
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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 084
tekmar - 084 - Indoor Sensor - Flush Mount
$51.00
Factory-Direct
Learn More About Tekmar 284
tekmar - Designer Series - 284 - Boiler Control - Compatible with tekmarNet 4 - Outdoor Temperature Reset - Four Modulating or Two Stage Boilers - Domestic Hot Water - Setpoint - Building Automation System
$2,752.00
Factory-Direct
Free Shipping
Learn More About Free Freight
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.
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 078
tekmar - 078 - Universal Sensor - 15' Wire
$92.00
Factory-Direct
Learn More About Tekmar 082
tekmar - 082 - Universal Sensor - 8' Wire
$42.00
Factory-Direct
Learn More About Buderus 7738003609
Buderus - 7738003609 - Hydrostat Wall Mounting Kit - For G115WS and G215 Boilers
$52.00
Factory-Direct
Learn More About Buderus 5446065
Buderus - 5446065 - 3/4" Diameter - Chrome Well - For Logamatic 4321 and 4323
$64.00
Factory-Direct
Learn More About Weil-McLain 511624617
Weil-McLain - Outdoor Air Temperature Control - 0-100 F - 3-10 F Adjustable Differential - 511624617
$184.00
Factory-Direct
Learn More About Weil-McLain 389900229
Weil-McLain - Universal 3-in-1 Temperature Outdoor Sensor Kit - includes 1 Sensor - 389900229
$206.00
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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 013
tekmar - 013 - Transformer - 115V AC to 24V AC - 96 VA
$118.00
Factory-Direct
Learn More About Tekmar 090
tekmar - Classic Series - 090 - Snow/Ice Sensor - 65' Wire - For Use with tekmar Snow Melting Controls
$846.00
Factory-Direct
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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 007
tekmar - 007 - Adaptor Plate - For Enclosure G & J
$23.00
Factory-Direct
Learn More About Tekmar 003
$64.00
Factory-Direct
Learn More About Tekmar 004
tekmar - 004 - Relay - 120V (AC)
$66.00
Factory-Direct
Learn More About Tekmar 005
tekmar - 005 - Ohm Converter - 4-20 mA to 0-135 Ohm
$153.00
Factory-Direct
Learn More About Tekmar 009
$72.00
Factory-Direct
Learn More About Tekmar 085
tekmar - 085 - Solar Sensor - 5' Wire - For Use with Solar Applications
$47.00
Factory-Direct
Learn More About Weil-McLain 389900220
Weil-McLain - BCP-3 - Control Panel - Three Stage - 389900220
$1,237.00
Factory-Direct
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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.
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 Weil-McLain 389900221
Weil-McLain - BCP-8W - Hot Water Control Panel - Eight Stage - 389900221
$2,197.00
Factory-Direct
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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.
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 Weil-McLain 389900224
Weil-McLain - BMC - Hot Water Modulating Control - Four Stage - 389900224
$2,422.00
Factory-Direct
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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.
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 Buderus 18358
Buderus - 18358 - 0-10v Signal - Modulating Control - EM10 - For GB142 and GB162 Boilers
$297.00
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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 Buderus 7746900845
Buderus - 7746900845 - Cascade Module - MCM10 - For GB142 and GB162 Boilers
$939.00
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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.

tekmar Controls

Tools & Articles

How to Pick the Perfect Thermostat
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Battle of the Smart Thermostats
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Keep your home comfort system working the way that's right for you with specialized thermostats and controls. Whether you're updating an old control, replacing a thermostat, or building a new system, we have the right parts for you.