The LiftMaster HTR heater kit is used to help maintain a more reliable operating environment inside compatible LiftMaster DC commercial gate and door operators in cold climates. Cold temperatures can reduce battery output, affect electronics, stiffen grease, and contribute to intermittent operator behavior. The HTR kit adds a controlled heat source inside the operator frame to help reduce cold-weather service problems when installed in a supported model.
This kit is commonly referenced for pad mount DC commercial gate operators and Logic 5.0 or MAXUM Series DC commercial door operators. Compatibility listings often include CSW24, CSL24, RSW12, RSL12, HDSW24, HDSL24, IHSL24, and INSL24 style families, but suffixes and generations matter. The HTR kit includes a battery bracket in many listed configurations, which is one reason it must be separated from HTRNB and HTR460. Always confirm the exact operator manual before ordering.
| Manufacturer | LiftMaster |
|---|---|
| Product Type | Heater kit |
| Part Number | HTR |
| Application | Cold-weather temperature control for compatible DC gate and door operators |
| Voltage | Common listings reference 110-250 VAC input range; verify manual |
| Compatible Operator Type | Select DC commercial gate operators and supported DC commercial door operators |
| Operating Temperature Notes | Listed for cold-weather protection down to -40 degrees F in supported applications |
| Included Components | Heater, thermostat/control hardware, mounting hardware, battery bracket in listed configurations |
| Notes | Verify HTR vs HTRNB vs HTR460 before ordering |
The HTR, HTRNB, and HTR460 heater kits are similar by purpose but not the same kit. Choose by operator type, input voltage, and whether the installation requires the battery bracket or a 460V-rated kit.
Heater kits involve powered wiring inside commercial operators. Disconnect power before service and use a qualified technician for installation, especially where high voltage or battery backup is present.
It helps protect compatible LiftMaster DC commercial gate and door operators in cold-weather installations.
No. HTR and HTRNB are related heater kits, but listed components and mounting applications differ, including battery bracket references.
Use the correct 460V-rated kit, commonly HTR460, when the operator application requires 460V support.
Common references include CSW24, CSL24, RSW12, RSL12, HDSW24, HDSL24, IHSL24, and INSL24 families where supported.
A qualified gate or commercial door technician should install and test the heater kit because it involves operator wiring.