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Learn More About Tekmar 079
tekmar - 079 - Slab Sensor - 10' Wire - For Use with Floor Heating Applications
$46.00
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Learn More About Tekmar 710
tekmar - 710 - 3/4" - 3-Way Mixing Valve
$224.00
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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 720
tekmar - 720 - 3/4" - 4-Way Mixing Valve
$232.00
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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 711
tekmar - 711 - 1" - 3-Way Mixing Valve
$226.00
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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 712
tekmar - 712 - 1-1/4" - 3-Way Mixing Valve
$230.00
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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 714
tekmar - 714 - 2" - 3-Way Mixing Valve
$643.00
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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 721
tekmar - 721 - 1" - 4-Way Mixing Valve
$237.00
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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 722
tekmar - 722 - 1-1/4" - 4-Way Mixing Valve
$240.00
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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 257-0
tekmar - Classic Series - 257 - DHW Control - Two Stage
$356.00
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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 386500
Caleffi 3/4" Manifold Outlet Cap, 3/4" Straight Thread
$146.00
Factory-Direct
Learn More About Watts Radiant RLC01B10T20-10
Watts Radiant
Watts Radiant - RLC01B10T20-10 - 3/4" BSP to 5/8" PEX-AL-PEX Compression Fitting - Quantity: 10 - Order Number: 81008088
$136.00
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Learn More About Tekmar 132-
tekmar - Classic Series - 132 - Pump Sequencer - Standby - Two Stage
$876.00
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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 156
tekmar - Classic Series - 156 - Difference Setpoint Control - Solar Sensor - On/Off
$283.00
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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 374
tekmar - Classic Series - 374 - Universal Reset Control - Outdoor Temperature Reset - Two Mixing - Two Stage Boiler - Domestic Hot Water - Setpoint
$1,686.00
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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 41380A
Caleffi 1/2" Sweat Tailpiece for model 573 Backflow Preventer
$146.00
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Learn More About Tekmar 313
tekmar - Performance Series - 313 - Wiring Center - Compatible with tekmarNet 2 - Four Zone Valves - For Use with tekmarNet 2 Thermostats Only
$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.
Learn More About Tekmar 314
tekmar - Performance Series - 314 - Wiring Center - Compatible with tekmarNet 2 - Four Zone Pumps - For Use with tekmarNet 2 Thermostats Only
$371.00
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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 316
tekmar - Performance Series - 316 - Wiring Center - Compatible with tekmarNet 4 - Four Zone Pumps - For Use with tekmarNet 4 or Stand-Alone Thermostats
$350.00
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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 324
tekmar - Designer Series - 324 - Zone Expansion Module - Compatible with tekmarNet 2 and tekmarNet 4 - Four Zones - Cooling and Fan Relays - For Use with tekmarNet 2 Thermostats Only
$467.00
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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 334
tekmar - Designer Series - 334 - Zone Manager - Compatible with tekmarNet 2 - Four Zones - Cooling and Fan Relays - For Use with tekmarNet 2 Thermostats Only
$677.00
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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
$861.00
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.
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
$995.00
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 423
tekmar - Designer Series - 423 - Universal Reset Module - Compatible with tekmarNet 4 - Outdoor Temperature Reset - Two Boilers - Domestic Hot Water - Setpoint
$1,132.00
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 482
tekmar - 482 - Gateway - Compatible with tekmarNet 2 and tekmarNet 4 - RS232 for Home Automation Systems
$1,486.00
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.
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.

Find all of your boiler accessories at eComfort. We carry a wide selection of boiler accessories from the top brands. Let our experts help you find the perfect accessories for your boiler today.