Thermostatic Boiler Controls

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172 Products

Learn More About Weil-McLain 383500659
$323.00
Only 1 In-Stock
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Learn More About Burnham 105648-01
$554.37
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Learn More About Tekmar 346
tekmar - Designer Series - 346 - Power Manager - Compatible with tekmarNet 4 - Three Auxiliary Pumps - Four Demands
$743.00
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Learn More About Burnham 80160641
Burnham Hydrolevel 550 Probe Type Low-Water Cut-Off, Manual Reset w/ Test Button
$327.97
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Learn More About Burnham 102711-01
Burnham - Low-Water Cut-Off Option Card Kit - Auto Reset - For Burnham ES2, ESC, MPO-IQ, and Series 3 Hot Water Boilers - MPN: 102711-01
$255.94
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Learn More About Hydrolevel EW-224
Hydrolevel EW-224 Electro-Well Low Water Cut-Off Probe, Long Nut, Short Insertion Length - 1/2" NPT
$60.00
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Learn More About Hydrolevel EW-225
Hydrolevel EW-225 Electro-Well Low Water Cut-Off Probe, Extra Short Insertion Length - 1/2" NPT
$45.00
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Learn More About Tekmar 325-0
tekmar - Designer Series - 325 - Zone Expansion Module - Compatible with tekmarNet 4 - Six Zone Valves - For Use with tekmarNet 4 or Stand-Alone Thermostats
$399.00
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Learn More About Tekmar 335
tekmar - Designer Series - 335 - Zone Manager - Compatible with tekmarNet 4 - Six Zone Valves - For Use with tekmarNet 4 or Stand-Alone Thermostats
$581.00
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Learn More About Tekmar 315-0
tekmar - Performance Series - 315 - Wiring Center - Compatible with tekmarNet 4 - Six Zone Valves - For Use with tekmarNet 4 or Stand-Alone Thermostats
$266.00
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Learn More About Tekmar 400-0
tekmar - Performance Series - 400 - House Control - Compatible with tekmarNet 2 - Four Zone Valves - Outdoor Temperature Reset - Boiler - DHW - Setpoint
$760.00
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Learn More About Tekmar 444
tekmar - Designer Series - 444 - Mixing Expansion Module - Compatible with tekmarNet 4 - Variable Speed/Floating Action/Modulating - For Use with tekmarNet Thermostats
$478.00
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Learn More About Tekmar 002
tekmar - 002 - 10K Temperature Simulator - For Use with tekmar Controls That Use a 10K Sensor Only
$505.00
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Learn More About Weil-McLain 510312041
Weil-McLain - Hot Water High Temperature Limit Control - 130-270 F - Manual Reset - 510312041
$168.00
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Learn More About Tekmar 671-TEKMAR
$1,236.00
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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.
Learn More About Honeywell PA404A1033
$229.00
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Learn More About Honeywell L4006A1009
$219.00
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Learn More About Honeywell L4006A1017
$239.00
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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.