Customer Service Hours: M-F 8am-5pm EST

For Same Day Shipping Order in the Next:

Live Help: Call now

833-392-0114

Master Distributor for Heating, HVAC/R, and Water Heating Needs

Narrow Search Results

Search Within

In Stock

Y (82)

Manufacturer

Safety Switches & Limits - Heating

Displaying 1-96 of 228 results

100232493

Flow Switch Outdoor

Lochinvar | 571170

Compare

805000033

Limit Switch High for E/Q Series

Rinnai | 423180

Compare

950-0640

High Limit Switch

Tjernlund | 95508

Compare

50806S

Flow Switch Air for EZ Gas Burner Pro Series

Carlin | 508279

Compare

107502-01

Pressure Switch Repair Kit 3.0 Inch WC

Burnham | 614183

Compare

100208173

Limit Switch High Auto 200 Degrees Fahrenheit

Lochinvar | 561934

Compare

100208172

Limit Switch Rollout Manual Reset 250 Degrees Fahrenheit

Lochinvar | 561935

Compare

100157749

Pressure Switch Manual Reset High/Low for KBN500-800

Lochinvar | 561961

Compare

100208388

Pressure Switch Air 1 Inch Water Column

Lochinvar | 561965

Compare

100208653

Flow Switch Replacement

Lochinvar | 561990

Compare

511330192

Flame Sensor Main 30 Inch

Weil-McLain | 54578

Compare

511624302

Pressure Switch Air 1.40 Inch Water Column for CGi-4 Series 2

Weil-McLain | 244930

Compare

511624303

Pressure Switch Air 1.12 Inch Water Column

Weil-McLain | 244931

Compare

511624304

Pressure Switch Air 0.8 Inch Water Column

Weil-McLain | 244932

Compare

7250P-739

Flue Switch ECO 160 for Elite Boilers

HTP | 424699

Compare

113200

Flow Switch FS1 High Sensitivity Liquid SPDT 1/2 Inch NPT

McDonnell Miller | 12476

Compare

309100

Flow Switch 11 Replacement with Manual Reset

McDonnell Miller | 12485

Compare

309200

Switch 11MV for 61/64/67/69/70/764/767

McDonnell Miller | 12486

Compare

7079498

Switch Blocked Vent for G124X Boilers

Buderus | 256360

Compare

110800

Switch Assembly 7B Potentiometer Automatic Reset 120/240V

McDonnell Miller | 425867

Compare

635100010

Thermostat Plus Commercial 90-190 Degrees Fahrenheit

Weil-McLain | 87595

Compare

6016067

Switch Blocked Vent 200 Degree Fahrenheit Switch Manual Reset

Burnham | 373079

Compare

100275596

Pressure Switch 100275596

Lochinvar | 584582

Compare

7250P-089

Switch Munchkin Thermodisc Flue ECO

HTP | 246258

Compare

98522S

Flow Switch Air for EZ Gas Burner

Carlin | 405225

Compare

7250P-081

Pressure Switch Munchkin Water with Gasket 7250P-081

HTP | 246662

Compare

383600048

Switch Kit Pressure High Gas Kit-S

Weil-McLain | 775592

Compare

7250P-019

High Limit Sensor Munchkin ECO for T/EL/ELP

HTP | 257606

Compare

114780

Flow Switch FS5-1 General Purpose Liquid SPDT 1 Inch NPT

McDonnell Miller | 67715

Compare

950-0016

Prover Old Style External J Box Mount SS2 SS2G Side Wall Vent Systems

Tjernlund | 215786

Compare

100279407

Flame Sensor Rear with Gasket for FB751-200

Lochinvar | 765577

Compare

511624511

Pressure Switch Differential SPDT 0.90 Inch Water Column 10C214

Weil-McLain | 67782

Compare

2400-226

Limit Switch Low Strap-On New Style for HW Series Boilers

Laars | 765681

Compare

2400-228

Pressure Switch Mark II

Laars | 765682

Compare

P2074600

Pressure Switch 3 to 30 PSI

Laars | 765717

Compare

R2028200

Flow Switch Sika

Laars | 765730

Compare

950-1030

Fan Prover Kit with Sensing Tube HSJ UC1 HSUL-J HST-J HS115-J HS1 H...

Tjernlund | 152845

Compare

PS1505

Fan Switch SPST Proving NO Snap

Tjernlund | 163821

Compare

120610

Flow Switch FS254 General Purpose SPDT with NEMA-4 Enclosure 1 Inch

McDonnell Miller | 111265

Compare

110100

Switch 2-M Cutoff with Manual Reset

McDonnell Miller | 69798

Compare

60160876

Pressure Switch Suction

Burnham | 408510

Compare

100148402

Limit Switch Heat Exchanger Over Temp Limit

Lochinvar | 704787

Compare

65118663

Pressure Switch Low

HTP | 757714

Compare

7738005024

Pressure Switch Gas Low

Bosch | 704989

Compare

7738005041

Power Switch On/Off

Bosch | 704991

Compare

511624403

Pressure Switch Air 1.22 Inch Water Column

Weil-McLain | 409176

Compare

7855P-262

Pressure Switch 7855P-262

HTP | 578627

Compare

8718600019

Pressure Sensor Water for GB142 Series

Buderus | 282652

Compare

RE0240900

Pressure Switch for Pennant Pool Heater

Laars | 473181

Compare

381300000

Limit Aquastat Combination High/Low 3250 Plus for WGO Series

Weil-McLain | 367542

Compare

107862-01

Air Proving Switch for K2WT-180B 180WTC

Burnham | 621552

Compare

80160744

Pressure Switch Green Label 0.80 Inch WC

Burnham | 896547

Compare

60160877

Pressure Switch Air Negative 0.70 Inch WC

Burnham | 896552

Compare

109742-01

Switch Vent Blocked 200 Degree Fahrenheit Setpoint

Burnham | 896916

Compare

7250P-096

Pressure Switch Munchkin Water with Blue Dot 7250P-096

HTP | 379107

Compare

7600P-007

Pressure Switch 7600P-007

HTP | 463882

Compare

7600P-502

Pressure Switch with Screw 7600P-502

HTP | 463894

Compare

7250P-150

Pressure Switch Munchkin Blocked Vent 7250P-150

HTP | 379500

Compare

90000B2S

Control EZ-Temp Redundant Limit

Carlin | 274175

Compare

104425-01

Pressure Switch Air 2 Inch

Burnham | 517534

Compare

80160762

Pressure Switch Differential 1.32 Inch WC

Burnham | 422524

Compare

7500P-090

Condensate Cup Munchkin with Engagement/Overflow Switch

HTP | 411977

Compare

511624450

Pressure Switch Differential 1.18 Inch Water Column

Weil-McLain | 179545

Compare

7738004974

Pressure Switch Differential for SSB

Bosch | 550529

Compare

100073333

Pressure Switch High/Low Gas Manual Reset for FTX600-850

Lochinvar | 561951

Compare

100073334

Pressure Switch High/Low Gas Manual Reset for FTX500

Lochinvar | 561952

Compare

100157745

Pressure Switch Manual Reset High/Low for KB601-801

Lochinvar | 561960

Compare

511624405

Pressure Switch Air 0.75 Inch Water Column

Weil-McLain | 244934

Compare

510312152

Control Limit L4080D1044

Weil-McLain | 880485

Compare

7250P-147

Pressure Switch Munchkin 7250P-147

HTP | 246663

Compare

510312135

Limit Control High Pressure Steam Automatic Reset

Weil-McLain | 163113

Compare

110400

Switch 5-M Electric with Manual Reset 120/240 Volt

McDonnell Miller | 152708

Compare

100278108

Pressure Switch 100278108

Lochinvar | 576235

Compare

65118678

Pressure Switch 65118678

HTP | 757728

Compare

7738005026

Pressure Switch Gas 1/4 Inch High for SSB-512

Bosch | 704990

Compare

511624402

Pressure Switch Air 1.48 Inch Water Column

Weil-McLain | 409175

Compare

7738005410

Pressure Switch Differential for SSB85-SSB160

Bosch | 695450

Compare

100517-01

Limit Switch High Temperature 100517-01

Burnham | 452333

Compare

80160738

Pressure Switch Red Label 0.40 Inch WC

Burnham | 896480

Compare

P2019100

Pressure Switch Tubing per Foot

Laars | 378729

Compare

950-2080

Pressure Switch Gas

Tjernlund | 188540

Compare

511624451

Pressure Switch Differential 0.96 Inch Water Column

Weil-McLain | 179546

Compare

510300013

Switch Spill with Reset 210 Degrees Fahrenheit

Weil-McLain | 74532

Compare

311200

Float 21-30 Replacement for 21 Series

McDonnell Miller | 275574

Compare

510312021

Limit Control Immersion 140-220 Degrees Fahrenheit Automatic Reset

Weil-McLain | 265356

Compare

7350P-167

Condensate Switch for Elite Boilers

HTP | 424248

Compare

100157703

High Limit Adjustable with Manual Reset for Copper Fin CB315-500/CW...

Lochinvar | 561955

Compare

511624510

Pressure Switch Differential SPDT 1 Inch Water Column 10C213

Weil-McLain | 54579

Compare

120611

Flow Switch FS-251 General Purpose SPDT with NEMA-1 Enclosure 1 Inc...

McDonnell Miller | 12477

Compare

52264U

Switch Air Proving

R.W. Beckett | 509436

Compare

52259-001U

Pressure Switch Antunes Low Gas 52259-001U

R.W. Beckett | 530601

Compare

52259-002U

Pressure Switch Antunes High Gas 52259-002U

R.W. Beckett | 530602

Compare

7855P-017

Pressure Switch 7855P-017

HTP | 583676

Compare

510312076

Control Lower Mount-F HONL7248L 1030

Weil-McLain | 879965

Compare

633900130

Thermostat Plus Residential 90-160 Degrees Fahrenheit

Weil-McLain | 203417

Compare

510311024

Control Limit MH L6006A 1251

Weil-McLain | 880086

Compare

Displaying 1-96 of 228 results

Heating System Safety Switches and Limits

Browse heating safety and limit switches at Stockpile Express and find a variety of options essential to the safety of your heating system: A flow switch safely prevents the boiler from firing up when the water flow ceases, a limit switch reads the temperature and determines when it is appropriate to send the air flow through, and a pressure switch ensures leftover gasses are safely eliminated before the boiler heats up. Whatever style of switch you're looking for, you'll find it in our collection of heating safety parts from Burnham, HTP, McDonnell Miller, and other top brands.

833.392.0114
Mon-Fri 8am-5pm EST sales@stockpileexpress.com

PRODUCTS

COMPANY

CUSTOMER SERVICE

Stay up-to-date on the latest Stockpile Express products and promotions.

or CREATE ACCOUNT

Safety Switches & Limits - Heating

Heating System Safety Switches and Limits