1. Important Safety Instructions
Please read and save these important safety instructions before using this heater. Failure to follow these instructions could result in fire, electric shock, or injury to persons.
- General Safety: Always plug heaters directly into a wall outlet/receptacle. Never use with an extension cord or relocatable power tap (outlet/power strip).
- Overheat Protection: This heater is equipped with an automatic overheat protection system. If the heater overheats, it will automatically shut off. To reset, unplug the heater from the electrical outlet, wait 10 minutes for the unit to cool, and then plug it back in.
- Cool-Touch Exterior: The heater features a cool-touch exterior, making it safer for homes with children and pets. However, caution should always be exercised, and supervision is recommended.
- Placement: Always place the heater on a firm, level surface. Do not place the heater on soft surfaces like beds or rugs where openings may become blocked.
- Clearance: Maintain at least 3 feet (0.9 meters) clearance from the front, sides, and rear of the heater to combustible materials such as furniture, pillows, bedding, papers, clothes, and curtains.
- Moisture: Do not use the heater in wet or moist locations such as bathrooms, laundry areas, or similar indoor locations.
- Unattended Operation: Never leave the heater unattended when in use. Always turn off and unplug the heater when not in use.
2. Product Overview
The Lasko Model 5775 is an oscillating ceramic tower space heater designed to provide efficient and comforting warmth to various indoor spaces. Its compact design and integrated features make it a versatile heating solution.
Key Features:
- 1500 Watts of Power: Projects fast, even heat.
- Widespread Oscillation: Distributes heat across a wider area.
- Adjustable Thermostat: Allows you to set and maintain your desired room temperature.
- 2 Quiet Heat Settings: Choose between high and low heat output.
- 7-Hour Auto-Off Timer: For convenient, scheduled operation.
- Built-in Carry Handle: Enhances portability.
- Safety Features: Includes overheat protection and a cool-touch exterior.

This image displays the Lasko Model 5775 heater in its upright tower form, highlighting its sleek silver and white design with a prominent front grille for heat emission.
3. Setup
The Lasko Model 5775 heater comes fully assembled and ready for use. No additional assembly is required.
- Placement: Place the heater on a firm, level surface in the desired room. Ensure it is at least 3 feet away from any walls or combustible materials.
- Power Connection: Plug the heater directly into a 120V AC wall outlet. Do not use extension cords or power strips.
4. Operating Instructions
The control panel is located on the top of the heater for easy access. All functions can be controlled directly from this panel.

This image provides a close-up of the control panel, showing the various buttons and indicator lights for operating the heater's functions.
Power On/Off:
- Press the POWER button once to turn the heater on to HIGH heat.
- Press the POWER button a second time to switch to LOW heat.
- Press the POWER button a third time to turn the heater off.
Adjusting Temperature (Thermostat):
- Press the TEMP button to cycle through available temperature settings (65°, 70°, 75°, 80°, 85°, MAX).
- The heater will operate until the set temperature is reached, then cycle on and off to maintain it.
Setting the Timer:
- Press the TIMER button to set the auto-off timer for 1, 2, 4, or 7 hours.
- The corresponding indicator light will illuminate. The heater will automatically shut off after the selected time.
Oscillation Function:
- Press the OSC button to activate the widespread oscillation feature.
- Press the OSC button again to stop oscillation.

This image illustrates the convenience of the built-in carry handle, allowing for easy transportation of the lightweight heater between rooms.
Video Demonstration: Controls and Oscillation
This video demonstrates the control panel functions, including power, heat settings, timer, and oscillation, providing a visual guide to operating the Lasko Model 5775 heater.
5. Maintenance
Regular maintenance ensures optimal performance and longevity of your heater. Always unplug the heater before cleaning.
- Cleaning: Use a soft cloth to wipe the exterior surfaces of the heater. Do not use water, waxes, polishes, or any chemical solutions.
- Dust Removal: Use a vacuum cleaner with a brush attachment to remove dust from the grilles.
- Storage: When storing the heater, keep it in a cool, dry place.
6. Troubleshooting
If your heater is not operating correctly, consult the following common issues and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Heater does not turn on. | No power to the unit; Overheat protection activated. | Ensure the unit is plugged into a working outlet. Unplug, wait 10 minutes, then plug back in to reset overheat protection. |
| Heater turns off unexpectedly. | Overheat protection activated; Tip-over switch activated. | Unplug and allow to cool. Ensure the heater is on a stable, level surface. |
| Reduced heat output. | Dust accumulation on heating elements/grilles. | Clean the grilles and interior with a vacuum cleaner. |
7. Specifications
- Brand: Lasko
- Model Number: 5775
- Color: Silver
- Form Factor: Tower
- Power: 1500 Watts
- Voltage: 120 Volts
- Amperage: 12.5 Amps
- Product Dimensions: 23.5"D x 8.5"W x 7.5"H
- Item Weight: 6.08 pounds
- Burner Type: Ceramic
- Fuel Type: Electric
- Number of Speeds: 2 (High/Low)
- Special Features: Adjustable Thermostat, 7-Hour Timer, Widespread Oscillation, Overheat Protection, Cool-Touch Exterior
- Recommended Uses: Home, Office (Indoor)
8. Warranty and Support
This Lasko heater is backed by a 3-year limited warranty. For warranty claims or technical support, please refer to the contact information provided in your product packaging or visit the official Lasko website.
Included Components: Heater, Instruction Manual





