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Boiler Controls

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Keep your boiler running efficiently with the proper boiler controls. We carry a wide selection of boiler controls, including reset controls, aquastats, and much more. Let our experts help you find the perfect boiler controls today.
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Model Number L8148E1265 is the Number 1 Seller
Learn More About L8148E1265
Honeywell Aquastat Relay Immersion Type Controller for High Limit Applications
Model: L8148E1265
Honeywell, L8148E1265, Honeywell Aquastat Relay Immersion Type Controller for High Limit Applications, Honeywell Original Accessory
22% Buy This
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$211.90
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Model Number 256 is the Number 2 Seller
Learn More About 256
Tekmar 256 - Boiler Control - Outdoor Temp. Reset - One Stage
Model: 256
tekmar - Classic Series - 256 - Boiler Control - Outdoor Temperature Reset - One Stage
11% Buy This
4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5(5)
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$172.00
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Model Number 263 is the Number 3 Seller
Learn More About 263
Tekmar 263 - Boiler Control - Outdoor Temp. Reset - Two Stage/Modulating - DHW - Setpoint
Model: 263
tekmar - Classic Series - 263 - Boiler Control - Outdoor Temperature Reset - Two Stage or One Modulating Boiler - Domestic Hot Water - Setpoint
11% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(1)
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$856.57
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Model Number L6006C1018 is the Number 4 Seller
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Honeywell Aquastat Controller For Circulator & High/Low Limit Applications, 65-200F, 5-30 Degree Differential Temperature
Model: L6006C1018
Honeywell, L6006C1018, Honeywell Aquastat Controller For Circulator & High/Low Limit Applications, 65-200F, 5-30 Degree Differential Temperature
11% Buy This
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$97.90
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Model Number L4006A2007 is the Number 5 Seller
Learn More About L4006A2007
Honeywell Aquastat Controller For High or Low Limit Applications, 100-240 Degree Range, 5-30 Degree Differential Temperature
Model: L4006A2007
Honeywell, L4006A2007, Honeywell Aquastat Controller For High or Low Limit Applications, 100-240 Degree Range, 5-30 Degree Differential Temperature
11% Buy This
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$96.90
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Learn More About 3100
Hydrolevel HydroStat 3100 Universal Temperature Limit and Low Water Cut-Off for Gas-Fired Boilers, 24 VAC
Model: 3100
Hydrolevel HydroStat 3100 Universal Temperature Limit and Low Water Cut-Off for Gas-Fired Boilers, 24 VAC
11% Buy This
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$139.00
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Learn More About EW-205
Hydrolevel EW-205 Electro-Well Low Water Cut-Off Probe, Extra Short Insertion Length - 3/4" NPT
Model: EW-205
Hydrolevel EW-205 Electro-Well Low Water Cut-Off Probe, Extra Short Insertion Length - 3/4" NPT
11% Buy This
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$18.00
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Learn More About L7224U1002
Honeywell Oil Electronic Aquastat Controller
Model: L7224U1002
Honeywell, L7224U1002, Honeywell Oil Electronic Aquastat Controller
11% Buy This
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$145.90
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Learn More About 265-0
Tekmar 265 - Boiler Control - Outdoor Temp. Reset - Three Modulating Boiler - DHW/Setpoint
Model: 265-0
tekmar - Classic Series - 265 - Boiler Control - Outdoor Temperature Reset - Three Modulating Boiler - Domestic Hot Water/Setpoint
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(1)
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$1,361.14
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Learn More About 7738003451
Buderus G315 - 12" - Universal Sensor
Model: 7738003451
Buderus - 7738003451 - 12" - Universal Sensor - For G315 Dual Fuel Boilers
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$21.00
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Learn More About LON4KIT
Buderus LON Gateway
Model: LON4KIT
Buderus - LON4KIT - LON Gateway - For Logamatic 4321 and 4323 Controllers
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$2,632.00
Factory-Direct
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Learn More About 5991368
Buderus Logamatic 4000 - Flue Gas Temperature Sensor
Model: 5991368
Buderus - 5991368 - Flue Gas Temperature Sensor - For Logamatic 4321 and 4323
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$156.00
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Learn More About 7747011958
Buderus Logamatic 4000 - Remote Control
Model: 7747011958
Buderus - 7747011958 - Remote Control - MEC2 - For Logamatic 4321 and 4323
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$351.00
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Learn More About 5097580-
Buderus Logamatic 4000 - Side Mounting Support
Model: 5097580-
Buderus - 5097580 - Side Mounting Support - For Logamatic 4321 and 4323
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$437.95
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Learn More About 7747029413
Buderus Logamatic 4000 - Temperature Display Module
Model: 7747029413
Buderus - 7747029413 - Temperature Display Module - For Logamatic 4321 and 4323
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$130.00
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Learn More About 389900232
Weil-McLain 0-10V Output Card
Model: 389900232
Weil-McLain - BSC - 0-10V Output Card - 389900232
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$228.11
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Learn More About 389900233
Weil-McLain 0-135 ohm Output Card
Model: 389900233
Weil-McLain - BSC - 0-135 ohm Output Card - 389900233
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$228.11
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Learn More About 511802621
Weil-McLain Alarm Bell
Model: 511802621
Weil-McLain - Alarm Bell - Used with 511802620 Transformer - 511802621
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$58.56
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Learn More About 389900230
Weil-McLain Brass Tube Sebsir Indoor System Sensor
Model: 389900230
Weil-McLain - Brass Tube Sebsir Indoor System Sensor - with 8" Wire - 389900230
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$50.88
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Learn More About 511624622
Weil-McLain Indoor/Outdoor Operating Control
Model: 511624622
Weil-McLain - Indoor/Outdoor Operating Control - 6-20 F Adjustable Differential - 511624622
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$316.11
Factory-Direct
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Learn More About 389900226
Weil-McLain Input Module
Model: 389900226
Weil-McLain - MBC 4-20-ma - Input Module - 389900226
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$474.44
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Learn More About 511624643
Weil-McLain Pressure Sensor Assembly
Model: 511624643
Weil-McLain - Pressure Sensor Assembly - 511624643
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$511.16
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Learn More About 389900228
Weil-McLain Sequencing and Modulating Control
Model: 389900228
Weil-McLain - Sequencing and Modulating Control - with BacNET - 389900228
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$8,056.80
Factory-Direct
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2% Check Discount
Learn More About 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.
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Learn More About 510712121
Weil-McLain Steam Pressure Modulating Control
Model: 510712121
Weil-McLain - Steam Pressure Modulating Control - 0-15 PSI - 1-12 PSI Adjustable Differential - 135 ohm Potentiometer - 510712121
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$330.33
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