Thermostatic Boiler Controls

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Weil-McLain - Outdoor Temperature Sensor Kit - For Weil-McLain GV90+, CGi, CGa, and EG-W Hot Water Boilers - MPN: 381356586
27% Buy This
$27.00
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tekmar - Classic Series - 518 - Thermostat - Non-Programmable - One Stage Heat
15% Buy This
$101.00
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Buderus - 5720724 - BFU Room Sensor - For Logamatic 2107 Control
6% Buy This
$149.00
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tekmar - 521 - Thermostat - 7-Day Programmable - Two Stage Heat or One Stage Heat/ One stage Cool - Buttons
6% Buy This
$159.00
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Learn More About Hydrolevel 3250
Hydrolevel HydroStat 3250 Universal Temperature Limit, Boiler Reset and Low Water Cut-Off for Oil-Fired Boilers, 120 VAC
3% Buy This
$222.00
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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 7738003610
Buderus - 7738003610 - Hydrostat Outdoor Sensor Kit - For G115WS and G215 Boilers
3% Buy This
$56.00
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Learn More About Buderus 5016602
Buderus - 5016602 - Modulating Firing Module - For Logamatic 2107 Control
3% Buy This
$246.00
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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 070
tekmar - 070 - Outdoor Sensor
3% Buy This
$44.00
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Learn More About Tekmar 076
tekmar - 076 - Indoor Sensor
3% Buy This
$54.00
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Learn More About Tekmar 079
tekmar - 079 - Slab Sensor - 10' Wire - For Use with Floor Heating Applications
3% Buy This
$41.00
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Learn More About Honeywell L8148A1017
$279.00
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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 012
tekmar - 012 - Adaptor Plate - For Enclosure S
3% Buy This
$27.00
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Learn More About Burnham 103696-01
Burnham - Manual Reset - Auxiliary High Limit Kit - Honeywell L4006E1133 - For Burnham Series 2 and PVG Hot Water Boilers - MPN: 103696-01
3% Buy This
$186.24
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Learn More About Triangle Tube PTSENS12
Triangle Tube - Cascade System Temperature Sensor - For Triangle Tube Prestige and Prestige Excellence Hot Water Boilers - MPN: PTSENS12
3% Buy This
$67.00
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Learn More About Taco SR503-4
Taco - SR503-4 - Zone Switching Relay - Three Zones - 1 Priority Zone
$182.60
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Learn More About White Rodgers 1361-102
White Rodgers 1361-102 2-Wire Hydronic Zone Control, 24V with Screw Terminal Wiring Panel & AUX Switch, 3/4\" Tubing ID
$210.00
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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 Taco ZVC403-4

Taco - ZVC403-4 - Zone Valve Control - Three Zones - 1 Priority Zone

$137.67
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Learn More About Taco ZVC406-4
Taco - ZVC406-4 - Zone Valve Control - Six Zones - 1 Priority Zone
$218.22
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.
Learn More About White Rodgers 1311-102
White Rodgers 1311-102 3-Wire Hydronic Zone Control, 24V with Screw Terminal Wiring Panel & AUX Switch, 3/4\" Tubing ID
$179.00
In-Stock
Learn More About White Rodgers 1311-103
White Rodgers 1311-103 3-Wire Hydronic Zone Control, 24V with Screw Terminal Wiring Panel & AUX Switch, 1\" Tubing ID
$197.00
In-Stock
Learn More About Taco SR501-4
Taco - SR501-4 - Zone Switching Relay - One Zone
$71.42
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Learn More About Buderus 5097580-
Buderus - 5097580 - Side Mounting Support - For Logamatic 4321 and 4323
$553.00
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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.