LiftMaster HTR HTR Heater Kit for DC Commercial Operators
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.
Compatible With
- Select LiftMaster pad mount DC commercial gate operators
- LiftMaster Logic 5.0 DC commercial door operators where listed
- LiftMaster MAXUM Series DC commercial door operators where listed
- Commonly associated with CSW24, CSW24UL, CSL24, CSL24UL, RSW12, RSW12UL, RSL12, RSL12UL, HDSW24, HDSW24UL, HDSL24, HDSL24UL, IHSL24UL, and INSL24UL families when supported by the manual
- Cold-weather installations requiring operator-frame heater support
Also Known As / Related Part Numbers
- HTR
- LiftMaster HTR heater kit
- HTR heater kit for DC operators
- Related HTRNB heater kit - frame-mounted, no battery bracket in listed configurations
- Related HTR460 heater kit - 460V applications only
Features & Specifications
| Manufacturer | LiftMaster |
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| Product Type | Heater kit |
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| Part Number | HTR |
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| Application | Cold-weather temperature control for compatible DC gate and door operators |
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| Voltage | Common listings reference 110-250 VAC input range; verify manual |
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| Compatible Operator Type | Select DC commercial gate operators and supported DC commercial door operators |
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| Operating Temperature Notes | Listed for cold-weather protection down to -40 degrees F in supported applications |
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| Included Components | Heater, thermostat/control hardware, mounting hardware, battery bracket in listed configurations |
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| Notes | Verify HTR vs HTRNB vs HTR460 before ordering |
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Technician Note
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.
Before Ordering Checklist
- Confirm the exact operator model and suffix.
- Verify the operator manual lists HTR for that application.
- Confirm line voltage and whether the site is 110-250VAC or 460VAC.
- Check whether the installation needs the battery bracket supplied with HTR.
- Have a qualified technician perform line-voltage wiring and final testing.
Professional Advisory
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.
Product Q&A
What is the HTR heater kit used for?
It helps protect compatible LiftMaster DC commercial gate and door operators in cold-weather installations.
Is HTR the same as HTRNB?
No. HTR and HTRNB are related heater kits, but listed components and mounting applications differ, including battery bracket references.
Can HTR be used on 460V operators?
Use the correct 460V-rated kit, commonly HTR460, when the operator application requires 460V support.
Which operator families are commonly listed with HTR?
Common references include CSW24, CSL24, RSW12, RSL12, HDSW24, HDSL24, IHSL24, and INSL24 families where supported.
Who should install this heater kit?
A qualified gate or commercial door technician should install and test the heater kit because it involves operator wiring.
