Aquastats

Aquastats are vital devices used in hydronic heating systems to monitor and control water temperatures. Designed for efficiency, they ensure optimal performance by activating or deactivating boilers and circulators based on temperature settings. With reliable performance and easy installation, aquastats are essential for maintaining comfort and energy efficiency in residential and commercial heating applications. Discover the best aquastats for your system at Jackson Systems & Supply!

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Showing 1–48 of 120 resultsSorted by popularity

High Limit Horizontal Aquastat Relay, 8 Degree Differential

Resideo

SKU: L8148A1017

Rated 5.00 out of 5
$250.80
Honeywell L8148A1017 High Limit Horizontal Aquastat Relay, 8 Degree Diff quantity
Aquastat Controller with Enclosed MicroSwitch, 65-200°F Range

Resideo

SKU: L6006C1018

Rated 5 out of 5
$156.51
Honeywell L6006C1018 Aquastat Controller with Enclosed MicroSwitch quantity
High Limit Immersion Aquastat, 100-200F Range, 8F Differential

Resideo

SKU: L4080B1352

Rated 5.00 out of 5
$82.90
Honeywell L4080B1352 High-Limit Immersion Aquastat, 8F Differential quantity
100F-240F Operating Temp, 5F Fixed Differential, 1/2″ Well

Resideo

SKU: L4006A1009
$207.86
Honeywell L4006A1009 High or Low Limit Aquastat, 5 Degree Differential quantity
100F-240F Range, 240F Stop, No Well, Adjustable Differential

Resideo

SKU: L4006A1678

Rated 5.00 out of 5
$164.94
Honeywell L4006A1678 High or Low Limit Aquastat, 5F to 30F Differential quantity
120VAC Universal Electronic Oil Aquastat

Resideo

SKU: L7224U1002

Rated 5.00 out of 5
$226.49
Honeywell L7224U1002 120VAC Oil Electronic Aquastat quantity
Honeywell L7224C1004/B Aquastat

Honeywell Home

SKU: L7224C1004/B
$179.49
MSRP: $206.41
You save 15%
Honeywell L7224C1004/B Aquastat quantity
Honeywell L7248L1006/B High Limit Aquastat

Honeywell Home

SKU: L7248L1006/B
$124.38
MSRP: $143.04
You save 13%
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Honeywell L4006A2015/B Aquastat Controller

Resideo

SKU: L4006A2015/B
$124.09
MSRP: $142.70
You save 15%
Honeywell L4006A2015/B Aquastat Controller quantity
Honeywell L6006A1269/B Aquastat Controller

Resideo

SKU: L6006A1269/B
$133.86
MSRP: $153.94
You save 15%
Honeywell L6006A1269/B Aquastat Controller quantity
Honeywell L4080B1352/B Aquastat

Resideo

SKU: L4080B1352/B
$68.58
MSRP: $87.68
You save 22%
Honeywell L4080B1352/B Aquastat quantity
140-240F High Limit Aquastat Control

Burnham Boiler

SKU: 80160251
$117.69
MSRP: $135.34
You save 15%
Burnham 80160251 140-240F High Limit Aquastat Control quantity
Honeywell L4006B1163 Circulator Aquastat

Honeywell Home

SKU: L4006B1163
$172.74
MSRP: $198.65
You save 15%
Honeywell L4006B1163 Circulator Aquastat quantity
Honeywell L7248L1030/B High Water High Limit Aquastat

Honeywell Home

SKU: L7248L1030/B
$43.74
MSRP: $68.41
You save 36%
Honeywell L7248L1030/B High Water High Limit Aquastat quantity
Honeywell L4006E1091 Aquastat Controller

Resideo

SKU: L4006E1091
$257.88
MSRP: $296.56
You save 15%
Honeywell L4006E1091 Aquastat Controller quantity
Honeywell L6006C1034 Aquastat Controller

Resideo

SKU: L6006C1034
$180.49
MSRP: $207.56
You save 15%
Honeywell L6006C1034 Aquastat Controller quantity
Honeywell L4006E1109/B Aquastat

Resideo

SKU: L4006E1109/B
$199.08
MSRP: $228.94
You save 15%
Honeywell L4006E1109/B Aquastat quantity
Honeywell L4081A1023 Aquastat Controller

Resideo

SKU: L4081A1023
$341.84
MSRP: $393.12
You save 15%
Honeywell L4081A1023 Aquastat Controller quantity
20/80°F SPST Temperature Control with Well & Capillary

Trane

SKU: CNT0428
$165.58
MSRP: $190.42
You save 15%
Trane CNT0428 20/80°F SPST Temperature Control with Well & Cap quantity
60/93°F 240-277V SPDT Thermostat with 36″ Capillary

Utica-Dunkirk

SKU: 121000007
$79.09
MSRP: $90.95
You save 15%
Utica-Dunkirk 121000007 60/93°F 240-277V SPDT Thermostat with 36" Capillary quantity
1/2″ NPT Male Aquastat Well for Hydronic Systems

Laars Heating Systems

SKU: RE2058300
$96.26
MSRP: $110.70
You save 15%
Laars Heating Systems RE2058300 1/2" NPT Male Aquastat Well quantity
130/230°F Aquastat Control, L6008G1009 Cross-Reference

Laars Heating Systems

SKU: RE0093200
$327.83
MSRP: $377.00
You save 15%
Laars Heating Systems RE0093200 130/230°F Aquastat L6008G1009 quantity
M/R 100–225°F High Limit Aquastat for Boiler Safety

Laars Heating Systems

SKU: RE0015900
$277.46
MSRP: $319.08
You save 15%
Laars Heating Systems RE0015900 M/R 100-225F High Limit Aquastat quantity
100-240°F SPST Capillary Aquastat with 110″ Capillary

Laars Heating Systems

SKU: RE0014400
$256.08
MSRP: $294.49
You save 15%
Laars Heating Systems RE0014400 100-240°F SPST Capillary Aquastat 110" quantity
40-180°F SPST Manual Reset 220″ Capillary Aquastat

Laars Heating Systems

SKU: E2103900
$249.84
MSRP: $287.32
You save 15%
Laars Heating Systems E2103900 40-180F SPST Manual Reset 220" Capillary Aquastat quantity
110-200°F SPST Immersion Aquastat

Utica-Dunkirk

SKU: 550002858
$462.46
MSRP: $531.83
You save 15%
Utica-Dunkirk 550002858 110-200°F SPST Immersion Aquastat quantity
Hydrostat Control for Utica-Dunkirk Boiler Systems

Utica-Dunkirk

SKU: 240012470
$194.40
MSRP: $223.56
You save 15%
Utica-Dunkirk 240012470 Hydrostat Control quantity
Electrostat 1/2″ NPT Immersion Thermowell for Boiler Systems

Utica-Dunkirk

SKU: 240009413
$28.30
MSRP: $32.55
You save 15%
Utica-Dunkirk 240009413 Electrostat 1/2" NPT Immersion Well quantity
24″ Hot Water Sensor Compatible with L7221/7248 Controllers

Utica-Dunkirk

SKU: 240009339
$44.95
MSRP: $51.69
You save 15%
Utica-Dunkirk 240009339 24" Hot Water Sensor for L7221/7248 quantity
7/8″ OD Strap-On Aquastat; 95°F On / 115°F Off

Taco Comfort Solutions

SKU: 563-2
$68.15
MSRP: $78.37
You save 15%
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1/2″ NPT Cast Iron Dual Control for Hydronic Systems

Taco Comfort Solutions

SKU: 334-T3
$187.79
MSRP: $215.96
You save 15%
Taco Comfort Solutions 334-T3 1/2" NPT Cast Iron Dual Control quantity
JUMO Thermostat EM Series, 95–210°F Temperature Range

Patterson-Kelley

SKU: 10-0490-3516
$516.89
MSRP: $594.42
You save 15%
Patterson-Kelley 10-0490-3516 JUMO Thermostat EM Series 95-210°F quantity
KPU73 Temp -20/60°F SPDT Auto Reset Control

Peerless Boiler

SKU: 54181
$103.09
MSRP: $118.55
You save 15%
Peerless Boiler 54181 KPU73 Temp -20/60°F SPDT Auto Reset Control quantity
Aquastat Limit Control for Peerless Boilers

Peerless Boiler

SKU: 50539
$286.75
MSRP: $329.76
You save 15%
Peerless Boiler 50539 Aquastat Limit Control quantity
Aquastat Limit Control with 3/4″ Immersion Well

Peerless Boiler

SKU: 50535
$377.01
MSRP: $433.56
You save 15%
Peerless Boiler 50535 Aquastat Limit Control with 3/4" Immersion Well quantity
Outlet Sensor High Limit Kstat 1/4″ Fitting

Lochinvar & A.O. Smith

SKU: 100208566
$95.34
MSRP: $109.64
You save 15%
Lochinvar & A.O. Smith 100208566 Outlet Sensor High Limit Kstat 1/4" quantity
1/4″ Immersion Sensor Stat for Boiler & Hydronic Systems

Lochinvar & A.O. Smith

SKU: 100208563
$71.21
MSRP: $81.89
You save 15%
Lochinvar & A.O. Smith 100208563 1/4" Immersion Sensor Stat quantity
Thermostat (T-Stat) for Indirect Water Heater Tank

Lochinvar & A.O. Smith

SKU: 100208546
$309.99
MSRP: $356.49
You save 15%
Lochinvar & A.O. Smith 100208546 T-Stat for Indirect Tank quantity
Hydrostat Limit Control for Hydronic Heating Systems

Lennox

SKU: 13U14
$1,005.81
MSRP: $1,156.68
You save 15%
Lennox 13U14 Hydrostat Limit Control quantity
Strap-On Surface Mounted Temperature Control, SPDT, Auto Reset

Johnson Controls

SKU: A19DAC-1
$127.75
MSRP: $146.91
You save 15%
Johnson Controls A19DAC-1 Strap-On Surface Mounted Temperature Control, SPDT quantity
Hot Water Immersion Temperature Control, SPST, Manual Reset

Johnson Controls

SKU: A19ADB-2
$147.04
MSRP: $169.10
You save 15%
Johnson Controls A19ADB-2 Hot Water Immersion Temperature Control, SPST quantity
Hot Water Immersion Temperature Control, SPDT, 1/2″ NPT

Johnson Controls

SKU: A19ABC-12
$164.20
MSRP: $188.83
You save 15%
Johnson Controls A19ABC-12 Hot Water Immersion Temperature Control, SPDT, 1/2" NPT quantity
Hot Water Immersion Temperature Control, SPDT, 1/2″ NPT

Johnson Controls

SKU: A19ABC-11
$147.04
MSRP: $169.10
You save 15%
Johnson Controls A19ABC-11 Hot Water Immersion Temperature Control, SPDT, 1/2" NPT quantity
1/2″ Aquastat, L85-15F — Hydronic Boiler Temperature Control

International Environmental

SKU: 70011415
$111.45
MSRP: $128.17
You save 15%
International Environmental 70011415 1/2" Aquastat, L85-15F quantity
1/2″ Aquastat with 96″ Lead, Model L85-15F

International Environmental

SKU: 70011411
$63.96
MSRP: $73.55
You save 15%
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Combination Protectorelay & Hydronic Heating Controller, 120Vac

Honeywell Home

SKU: R8182H1070
$1,228.14
MSRP: $1,412.36
You save 15%
Honeywell R8182H1070 Combination Protectorelay & Hydronic Heating Controller quantity
Triple Aquastat Relay with High Limit, 130-240°F Range

Honeywell Home

SKU: L8124G1020
$452.71
MSRP: $520.62
You save 15%
Honeywell L8124G1020 Triple Aquastat Relay with High Limit quantity
Triple Aquastat Relay with High Limit, SPST Switching

Honeywell Home

SKU: L8124E1016
$459.94
MSRP: $528.93
You save 15%
Honeywell L8124E1016 Triple Aquastat Relay with High Limit quantity

Discover Honeywell Aquastats, essential devices for maintaining optimal water temperature in heating systems. These versatile controls ensure efficient operation and energy savings by accurately regulating water flow in hydronic heating applications. Designed for reliability, Honeywell Aquastats are easy to install and compatible with various systems. Whether you're a contractor or a homeowner, these controls help enhance comfort and efficiency. Explore our selection of Honeywell Aquastats to find the perfect fit for your heating needs!