HVAC Controls

Increase energy savings and easily control heating and cooling systems with HVAC controls. Utilize easy-to-install fresh air ventilation panels, furnace control boards, HVAC control boards, building automation panels, and kits to introduce clean air into buildings. Control multiple aspects of a system with highly universal digital controls. Also, shop our selection of replacement parts for controllers and larger equipment, defrost controllers, even fireplace controls. Our specialty controls selection addresses unique problems that push the boundaries of innovation within the industry. If you are a contractor check out items like the Wireless Lodge Watch from iO HVAC Controls or the Duel Fuel Kit.

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Showing 1585–1632 of 4992 resultsSorted by popularity

Cleaver-Brooks Replacement Ignitor, 2-Pack

Auburn

SKU: E5-205J-2PK
$198.99
MSRP: $228.84
You save 13%
Read more
Cleaver-Brooks Boiler Ignitor, 2-Pack

Auburn

SKU: E5-205F-2PK
$184.64
MSRP: $212.34
You save 13%
Auburn E5-205F-2PK Cleaver-Brooks Boiler Ignitor, 2-Pack quantity
Solid Stainless Steel Liquid Level Electrode Probe, 36″ L, 1/4″ Dia

Auburn

SKU: E5-1420-36
$44.88
MSRP: $51.61
You save 15%
Auburn E5-1420-36 Solid Stainless Steel Liquid Level Electrode Probe, 36" L, 1/4" Dia quantity
Solid Stainless Steel Liquid Level Electrode Probe, 24″ Long

Auburn

SKU: E5-1420-24
$28.48
MSRP: $32.75
You save 13%
Auburn E5-1420-24 Solid Stainless Steel Liquid Level Electrode Probe, 24" L quantity
18″ Solid SS Liquid Level Electrode Probe, 1/4″ Dia, 1/4-20 Thread

Auburn

SKU: E5-1420-18
$27.75
MSRP: $31.91
You save 13%
Auburn E5-1420-18 18" Solid Stainless Steel Liquid Level Electrode Probe quantity
12″ Solid SS Liquid Level Electrode Probe, 1/4″ Dia, 1/4-20 Thread

Auburn

SKU: E5-1420-12
$25.29
MSRP: $29.08
You save 13%
Auburn E5-1420-12 12" Solid Stainless Steel Liquid Level Electrode Probe quantity
Flame Rod for Maxon Burners with Rajah Connector

Auburn

SKU: ASS-18117B
$76.99
MSRP: $88.54
You save 13%
Auburn ASS-18117B Flame Rod for Maxon Burners with Rajah Connector quantity
1/4″ 4-Way Solenoid Valve, 30–150 PSI Air, 120VAC

ASCO

SKU: SC8551A002MS
$305.08
MSRP: $350.84
You save 13%
ASCO SC8551A002MS 1/4" 4-Way Solenoid Valve 30/150 PSI Air 120VAC quantity
ON/OFF 120V/60Hz Electric Actuator

ASCO

SKU: P149A121X1X04F0
$791.26
MSRP: $909.95
You save 15%
ASCO P149A121X1X04F0 ON/OFF 120V/60Hz Electric Actuator quantity
2-Way N/C 3/8″ NPT Fuel Gas Solenoid Valve, 120VAC, 1.2 Cv

ASCO

SKU: L8040H8
$189.40
MSRP: $217.81
You save 15%
ASCO L8040H8 2-Way Normally Closed 3/8" NPT Fuel Gas Solenoid Valve 120VAC quantity
2-Way Normally Closed Solenoid Valve, 3/4″ NPT, 120VAC, Fuel Gas

ASCO

SKU: L8040G23
$291.78
MSRP: $335.55
You save 13%
ASCO L8040G23 2-Way Normally Closed Solenoid Valve, 3/4" NPT, 120VAC, Fuel Gas quantity
2-Way N/C Solenoid Valve, 1/2″ NPT, 120VAC, Fuel Gas, NEMA 4X

ASCO

SKU: L8040G22
$289.91
MSRP: $333.40
You save 15%
ASCO L8040G22 2-Way N/C Solenoid Valve 1/2" NPT 120VAC Fuel Gas NEMA 4X quantity
Transfer Switch Control Panel

ASCO

SKU: K601800-002
$4,883.43
MSRP: $5,615.94
You save 15%
ASCO K601800-002 Transfer Switch Control Panel quantity
2-Way Normally Open 3/4″ NPT 120VAC Gas Vent Solenoid Valve

ASCO

SKU: JKF8215G33
$444.60
MSRP: $511.29
You save 13%
ASCO JKF8215G33 2-Way Normally Open 3/4" NPT 120VAC Gas Vent Solenoid Valve quantity
2-Way NC Solenoid Valve, 3/8″ NPT, 120VAC, Fuel Gas, NEMA 4X

ASCO

SKU: JKF8040H8
$168.93
MSRP: $194.27
You save 15%
ASCO JKF8040H8 2-Way NC Solenoid Valve 3/8" NPT 120VAC Fuel Gas NEMA 4X quantity
2-Way N.O. 1-1/4″ NPT 120VAC Fuel Gas Solenoid Vent Valve

ASCO

SKU: JB821463CSA
$754.90
MSRP: $868.14
You save 13%
ASCO JB821463CSA 2-Way N.O. 1-1/4" NPT 120VAC Fuel Gas Solenoid Vent Valve quantity
2-Way Normally Open Solenoid Valve, 1″ NPT, 120VAC, 21 Cv, Fuel Gas

ASCO

SKU: JB821453CSA
$636.34
MSRP: $731.79
You save 13%
ASCO JB821453CSA 2-Way N/O Solenoid Valve 1" NPT 120VAC 21 Cv Fuel Gas quantity
2-Way Normally Open 3/4″ NPT 120VAC Fuel Gas Vent Solenoid Valve

ASCO

SKU: JB821437CSA
$572.43
MSRP: $658.29
You save 13%
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2-Way N.C. 2″ Fuel Gas Solenoid Shutoff Valve, 120Vac, 55 Cv

ASCO

SKU: JB8214280CSA
$894.76
MSRP: $1,028.97
You save 15%
ASCO JB8214280CSA 2-Way Normally Closed 2" Fuel Gas Solenoid Shutoff Valve quantity
2-Way N/C 1-1/2″ Fuel Gas Solenoid Shutoff Valve, 120VAC

ASCO

SKU: JB8214270VICSA
$669.68
MSRP: $770.13
You save 13%
ASCO JB8214270VICSA 2-Way N/C 1-1/2" Fuel Gas Solenoid Shutoff Valve 120VAC quantity
2-Way N/C Solenoid Fuel Gas Shutoff Valve, 1-1/2″ NPT/Flange, 120VAC

ASCO

SKU: JB8214270CSA
$608.11
MSRP: $699.33
You save 15%
ASCO JB8214270CSA 2-Way N/C Solenoid Fuel Gas Shutoff Valve, 1-1/2" NPT/Flange, 120VAC quantity
2-Way N/C 1-1/4″ NPT 120VAC Fuel Gas Shutoff Solenoid Valve

ASCO

SKU: JB8214260VICSA
$618.74
MSRP: $711.55
You save 13%
ASCO JB8214260VICSA 2-Way N/C 1-1/4" NPT 120VAC Fuel Gas Shutoff Solenoid Valve quantity
2-Way N/C 1-1/4″ NPT/Flange 120VAC Fuel Gas Solenoid Shutoff Valve

ASCO

SKU: JB8214260CSA
$603.91
MSRP: $694.50
You save 13%
ASCO JB8214260CSA 2-Way N/C 1-1/4" NPT/Flange 120VAC Fuel Gas Solenoid Shutoff Valve quantity
2-Way N/C 1″ NPT/Flange 120VAC Fuel Gas Solenoid Shutoff Valve

ASCO

SKU: JB8214250CSA
$488.14
MSRP: $561.36
You save 15%
ASCO JB8214250CSA 2-Way N/C 1" NPT/Flange 120VAC Fuel Gas Solenoid Shutoff Valve quantity
2-Way Normally Closed 1″ Fuel Gas Shutoff Solenoid Valve

ASCO

SKU: JB8214250CCSA
$994.79
MSRP: $1,144.01
You save 15%
ASCO JB8214250CCSA 2-Way Normally Closed 1" Fuel Gas Shutoff Solenoid Valve quantity
2-Way N/C Solenoid Fuel Gas Shutoff Valve, 3″, 120VAC, 105 Cv

ASCO

SKU: JB8214240CSA
$1,918.26
MSRP: $2,206.00
You save 15%
ASCO JB8214240CSA 2-Way N/C Solenoid Fuel Gas Shutoff Valve, 3", 120VAC quantity
2-Way Normally Closed 3/4″ NPT 120VAC Fuel Gas Solenoid Shutoff Valve

ASCO

SKU: JB8214235CSA
$433.49
MSRP: $498.51
You save 13%
ASCO JB8214235CSA 2-Way Normally Closed 3/4" NPT 120VAC Fuel Gas Solenoid Shutoff Valve quantity
2-Way Normally Closed 1″ NPT 120VAC Fuel Gas Solenoid Valve

ASCO

SKU: JB8042C45CSA
$1,439.39
MSRP: $1,655.30
You save 13%
ASCO JB8042C45CSA 2-Way Normally Closed 1" NPT 120VAC Fuel Gas Solenoid Valve quantity
1/4″ Mini Pressure Switch, 4-12 PSI Range

ASCO

SKU: HB40A264U
$1,204.28
MSRP: $1,384.92
You save 13%
ASCO HB40A264U 1/4" Mini Pressure Switch 4-12 PSI quantity
2-Way N/C 3/4″ NPT 120VAC Explosion Proof Gas Shutoff Solenoid Valve

ASCO

SKU: EF8215G30
$365.99
MSRP: $431.41
You save 15%
ASCO EF8215G30 2-Way N/C 3/4" NPT 120VAC Explosion Proof Gas Shutoff Solenoid Valve quantity
2-Way N/C 1/2″ NPT 120VAC Explosion Proof Gas Shutoff Solenoid Valve

ASCO

SKU: EF8215G20
$361.24
MSRP: $415.43
You save 15%
ASCO EF8215G20 2-Way Normally Closed 1/2" NPT 120VAC Explosion Proof Gas Shutoff Solenoid Valve quantity
2-Way Normally Open 1″ NPT 120VAC Explosion Proof Solenoid Valve

ASCO

SKU: EF8215C53
$886.43
MSRP: $1,019.39
You save 13%
ASCO EF8215C53 2-Way Normally Open 1" NPT 120VAC Explosion Proof Solenoid Valve quantity
2-Way Normally Closed 2″ NPT 120VAC Explosion Proof Gas Shutoff Solenoid Valve

ASCO

SKU: EF8215B80
$1,009.61
MSRP: $1,161.05
You save 15%
ASCO EF8215B80 2-Way Normally Closed 2" NPT 120VAC Explosion Proof Gas Shutoff Solenoid Valve quantity
2-Way NC 1-1/2″ NPT 120VAC Explosion Proof Gas Shutoff Solenoid Valve

ASCO

SKU: EF8215B70
$749.34
MSRP: $861.74
You save 15%
ASCO EF8215B70 2-Way NC 1-1/2" NPT 120VAC Explosion Proof Gas Shutoff Solenoid Valve quantity
2-Way NC Solenoid Valve 1-1/4″ NPT 120VAC Explosion Proof Gas Shutoff

ASCO

SKU: EF8215B60
$662.28
MSRP: $761.62
You save 15%
ASCO EF8215B60 2-Way NC Solenoid Valve 1-1/4" NPT 120VAC Explosion Proof Gas Shutoff quantity
2-Way N/C 1/2″ NPT 120VAC Direct Acting Fuel Oil Solenoid Valve

ASCO

SKU: 8266D69L
$671.54
MSRP: $772.27
You save 13%
ASCO 8266D69L 2-Way N/C 1/2" NPT 120VAC Direct Acting Fuel Oil Solenoid Valve quantity
2-Way N/C Solenoid Gas Shutoff Valve 1/4″ NPT 120VAC Brass NEMA 4X

ASCO

SKU: 8262H78
$120.80
MSRP: $138.92
You save 15%
ASCO 8262H78 2-Way N/C Solenoid Valve 1/4" NPT 120VAC Fuel Gas Brass NEMA 4X quantity
2″ NC Solenoid Valve, Air/Fuel/Gas, 0-15 PSI, 24VDC, Aluminum Body

ASCO

SKU: 8215G80-24VDC
$786.39
MSRP: $904.35
You save 15%
ASCO 8215G80-24VDC 2" NC Solenoid Valve Air/Fuel/Gas 0-15 PSI 24VDC Aluminum quantity
1-1/4″ N/C Solenoid Valve for Air/Gas, 0–25 PSI, 12VDC

ASCO

SKU: 8215G60-12VDC
$507.78
MSRP: $583.95
You save 13%
ASCO 8215G60-12VDC 1-1/4" Normally Closed Solenoid Valve, Air/Gas, 12VDC quantity
1″ N/C 0-25 PSI Air/Gas Solenoid Valve, 24VDC

ASCO

SKU: 8215G50-24VDC
$459.43
MSRP: $528.34
You save 13%
ASCO 8215G50-24VDC 1" Normally Closed 0-25 PSI Air/Gas Solenoid Valve quantity
1″ N/C Solenoid Valve, 0–25 PSI, Air/Gas Service, 12VDC

ASCO

SKU: 8215G50-12VDC
$459.43
MSRP: $528.34
You save 13%
ASCO 8215G50-12VDC 1" N/C Solenoid Valve 0/25 PSI Air/Gas 12VDC quantity
2-Way Normally Open 3/4″ NPT 120VAC Solenoid Gas Vent Valve

ASCO

SKU: 8215G33
$414.04
MSRP: $476.15
You save 15%
ASCO 8215G33 2-Way Normally Open 3/4" NPT 120VAC Solenoid Gas Vent Valve quantity
2-Way Normally Closed 3/4″ NPT 12VDC Gas Shutoff Solenoid Valve

ASCO

SKU: 8215G30-12VDC
$265.84
MSRP: $305.72
You save 13%
ASCO 8215G30-12VDC 2-Way Normally Closed 3/4" NPT 12VDC Gas Shutoff Solenoid Valve quantity
2-Way Normally Open 1/2″ NPT 120VAC Gas Vent Solenoid Valve

ASCO

SKU: 8215G23
$410.33
MSRP: $471.88
You save 13%
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2-Way Normally Closed 1/2″ NPT 120VAC Gas Shutoff Solenoid Valve

ASCO

SKU: 8215G20
$278.46
MSRP: $320.23
You save 13%
ASCO 8215G20 2-Way Normally Closed 1/2" NPT 120VAC Gas Shutoff Solenoid Valve quantity
2-Way Normally Open 3/8″ NPT 120VAC Solenoid Gas Vent Valve

ASCO

SKU: 8215G13
$453.53
MSRP: $521.56
You save 15%
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2-Way N/C 3/8″ NPT 120VAC Gas Shutoff Solenoid Valve, 3.4 Cv

ASCO

SKU: 8215G10
$251.94
MSRP: $289.73
You save 15%
ASCO 8215G10 2-Way Normally Closed 3/8" NPT 120VAC Gas Shutoff Solenoid Valve quantity
2-Way Normally Open 2″ NPT 120VAC Solenoid Gas Vent Valve

ASCO

SKU: 8215C83
$1,180.98
MSRP: $1,358.13
You save 15%
ASCO 8215C83 2-Way Normally Open 2" NPT 120VAC Solenoid Gas Vent Valve quantity