Thermostatic Boiler Controls

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172 Products

Learn More About Tekmar 007
tekmar - 007 - Adaptor Plate - For Enclosure G & J
$23.00
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Learn More About Tekmar 003
$64.00
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Learn More About Tekmar 004
tekmar - 004 - Relay - 120V (AC)
$65.00
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Learn More About Tekmar 005
tekmar - 005 - Ohm Converter - 4-20 mA to 0-135 Ohm
$152.00
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Learn More About Tekmar 009
$72.00
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Learn More About Tekmar 085
tekmar - 085 - Solar Sensor - 5' Wire - For Use with Solar Applications
$47.00
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Learn More About Buderus 7746900845
Buderus - 7746900845 - Cascade Module - MCM10 - For GB142 and GB162 Boilers
$967.00
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Learn More About Buderus 5016602
Buderus - 5016602 - Modulating Firing Module - For Logamatic 2107 Control
$242.00
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Learn More About Burnham 100592-01
Burnham Hydrolevel 1100-H4 Low-Water Cut-Off Auto Reset with Test Button
$168.81
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Learn More About Burnham 80160703
Burnham Honeywell L4006E Manual Reset Aquastat, CSD-1 Controls
$209.97
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Learn More About Burnham 102714-01
Burnham - Low-Water Cut-Off Option Card Kit - Manual Reset - For Burnham ES2, ESC, MPO-IQ, and Series 3 Hot Water Boilers - MPN: 102714-01
$255.94
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Learn More About Burnham 102717-01
Burnham - Aquastat Option Card Kit - Auto Reset - For Burnham ES2, ESC, MPO-IQ, and Series 3 Hot Water Boilers - MPN: 102717-01
$255.94
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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 Hydrolevel 3150
Hydrolevel HydroStat 3150 Universal Temperature Limit and Low Water Cut-Off for Oil-Fired Boilers, 120 VAC
$218.00
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Learn More About Hydrolevel EW-204
Hydrolevel EW-204 Electro-Well Low Water Cut-Off Probe, Long Nut, Short Insertion Length - 3/4" NPT
$38.00
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Learn More About Hydrolevel EW-205
Hydrolevel EW-205 Electro-Well Low Water Cut-Off Probe, Extra Short Insertion Length - 3/4" NPT
$28.00
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Learn More About Tekmar 152
tekmar - Classic Series - 152 - Setpoint Control - Two Stage or Heat and Cool
$312.00
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Learn More About Tekmar 356
tekmar - Classic Series - 356 - Mixing Control - Outdoor Temperature Reset - Variable Speed
$388.00
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Learn More About Tekmar 360
tekmar - Classic Series - 360 - Mixing Control - Outdoor Temperature Reset - Floating Action
$662.00
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Learn More About Tekmar 361
tekmar - Classic Series - 361 - Mixing Control - Outdoor Temperature Reset - Variable Speed
$733.00
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Learn More About Tekmar 422
tekmar - Designer Series - 422 - Universal Reset Module - Compatible with tekmarNet 4 - Outdoor Temperature Reset - Mixing - Boiler - DHW - Setpoint
$992.00
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Learn More About Tekmar 326-0
tekmar - Designer Series - 326 - Zone Expansion Module - Compatible with tekmarNet 4 - Three Zone Pumps - For Use with tekmarNet 4 or Stand-Alone Thermostats
$237.00
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Learn More About Tekmar 336
tekmar - Designer Series - 336 - Zone Manager - Compatible with tekmarNet 4 - Four Zone Pumps - For Use with tekmarNet 4 or Stand-Alone Thermostats
$509.00
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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
$44.00
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Learn More About Tekmar 071
tekmar - 071 - Universal Sensor - 1' Wire
$37.00
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