Temperature Controls for HVAC Systems
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Vendor: TRANE
Low Ambient, Start Control Accessory
SCL # : 150963 Available: 54Shop NowRegular price $99.79Regular priceUnit price / per$120.00Sale price $99.79Sale -
Vendor: ALCO
Repl Power Assy for ETR Regulator
SCL # : 69479 Available: 1Shop NowRegular price $152.15Regular priceUnit price / per$161.00Sale price $152.15Sale -
Vendor: KLIXON
Temp Limit Control 150F Open
SCL # : 63270 Available: 18Shop NowRegular price $20.79Regular priceUnit price / per$25.00Sale price $20.79Sale -
Vendor: SERVICE FIRST
Control, Bi-Metal Disc Limit, 220-265F
SCL # : 56061 Available: 28Shop NowRegular price $12.32Regular priceUnit price / per$14.00Sale price $12.32Sale -
Vendor: HONEYWELL
Remote Temperature Sensor Only
SCL # : 53933 Available: 19Shop NowRegular price $31.68Regular priceUnit price / per$36.00Sale price $31.68Sale -
Vendor: MAXITROL
Maxitrol Sensor
SCL # : 50487 Available: 2Shop NowRegular price $58.21Regular priceUnit price / per$70.00Sale price $58.21Sale -
Vendor: KLIXON
SPST Commercial Refrig T-Stat
SCL # : 49877 Available: 1Shop NowRegular price $2.84Regular priceUnit price / per$3.00Sale price $2.84Sale -
Vendor: HONEYWELL
Air Temperature Sensor
SCL # : 46929 Available: 3Shop NowRegular price $11.64Regular priceUnit price / per$14.00Sale price $11.64Sale -
Vendor: BARBER-COLMAN
Temperature Transmitter
SCL # : 34506 Available: 4Shop NowRegular price $11.34Regular priceUnit price / per$17.00Sale price $11.34Sale -
Vendor: SERVICE FIRST
Thermostatic Limit Control
SCL # : 33360 Available: 344Shop NowRegular price $8.32Regular priceUnit price / per$10.00Sale price $8.32Sale -
Vendor: THERMODISC
Thermostat Disc
SCL # : 33356 Available: 4Shop NowRegular price $8.80Regular priceUnit price / per$10.00Sale price $8.80Sale -
Vendor: GENERAL ELECTRIC
Cold Control Stat With Mounting
SCL # : 28572 Available: 94Shop NowRegular price $12.29Regular priceUnit price / per$13.00Sale price $12.29Sale -
Vendor: RANCO
Temp Control Stat 10" Cap
SCL # : 28411 Available: 5Shop NowRegular price $2.84Regular priceUnit price / per$8.00Sale price $2.84Sale -
Vendor: HONEYWELL
Outdoor Thermostat with Thermistor
SCL # : 19295 Available: 2Shop NowRegular price $377.06Regular priceUnit price / per$399.00Sale price $377.06Sale -
Vendor: HONEYWELL
Remote Bulb Temperature Control
SCL # : 67 Available: 1Shop NowRegular price $108.11Regular priceUnit price / per$130.00Sale price $108.11Sale
Frequently Asked Questions
Surplus temperature controls for HVAC are brand-new, never-installed components sourced directly from manufacturers in bulk and then sold at prices well below traditional supply house pricing. The inventory includes thermostats, aquastats, high-limit controls, fan and limit switches, defrost controls, and other devices that regulate temperature in heating and cooling systems. "Surplus" refers to how the product was sourced (manufacturer overstock and excess inventory), not the condition of the item. Every control arrives in the original manufacturer’s packaging.
Yes. Discount HVAC temperature controls at Surplus City Liquidators are the same brand-name, new-in-box products available at traditional supply houses. The lower price reflects bulk purchasing and lean overhead, not a difference in product quality or condition. Each item is sourced directly from manufacturers and arrives in original packaging unless otherwise noted in the product listing.
The collection includes a wide range of controls for residential and light commercial applications. You'll find surplus HVAC thermostats in both programmable and non-programmable configurations, plus aquastats, capillary-style temperature controllers, fan and limit controls, defrost controls, and refrigeration cold controls. If you need a programmable thermostat surplus option or a specific aquastat surplus HVAC control, check current listings. Brands and model numbers vary with available inventory and move quickly.
Review the product listing carefully for voltage requirements (24V vs. line voltage), staging (single-stage vs. multi-stage), and system type compatibility (heating only, cooling only, or heat/cool). Key specs to match include temperature range, wiring terminals, and control type. Note the make and model of your existing equipment before purchasing. A licensed HVAC technician can confirm compatibility if you're uncertain.
Buying cheap temperature controllers for HVAC through Surplus City means the same brand-name, new-in-box product you'd get through a distributor, without the distributor markup. The savings come from bulk sourcing and lower overhead, not from a difference in the parts themselves. For contractors running large service jobs or multi-unit replacements, the cost difference on a full order of controls can be significant. Inventory moves quickly, so checking current listings before placing an order is recommended.
Surplus City Liquidators ships to all 48 contiguous states via ground, LTL, and other carrier options. Orders are processed within 3–5 business days, with shipping costs calculated by method and carrier at checkout. In-person pickup is available at various showroom locations. Check online for availability.
Confirm the replacement matches the original control's voltage, temperature range, and wiring configuration before installation. For capillary-style controllers, verify that capillary length and bulb dimensions fit your equipment housing. Installation of HVAC controls should be performed by a licensed HVAC technician to ensure safe operation and system warranty compliance.













