1. Introduction
This manual provides essential information for the safe and efficient operation of your MORENTO AT-SH26 1500W Electric Space Heater. This compact electric heater features two heat settings, a fan-only mode, and an ECO mode for energy efficiency. It includes multiple safety systems and is designed for portability and quiet operation in various indoor environments.
2. Important Safety Information
READ ALL INSTRUCTIONS BEFORE USING THIS HEATER.
- Do not use this heater outdoors.
- This heater is hot when in use. To avoid burns, do not let bare skin touch hot surfaces.
- Keep combustible materials, such as furniture, pillows, bedding, papers, clothes, and curtains at least 3 feet (0.9 m) from the front of the heater and keep them away from the sides and rear.
- Extreme caution is necessary when any heater is used by or near children or invalids and whenever the heater is left operating and unattended.
- Always unplug heater when not in use.
- Do not operate any heater with a damaged cord or plug or after the heater malfunctions, has been dropped or damaged in any manner.
- Do not run cord under carpeting. Do not cover cord with throw rugs, runners, or similar coverings. Arrange cord away from traffic area and where it will not be tripped over.
- Connect to properly grounded outlets only.
- Do not insert or allow foreign objects to enter any ventilation or exhaust opening as this may cause an electric shock or fire, or damage the heater.
- To prevent a possible fire, do not block air intakes or exhaust in any manner. Do not use on soft surfaces, like a bed, where openings may become blocked.
- A heater has hot and arcing or sparking parts inside. Do not use it in areas where gasoline, paint, or flammable liquids are used or stored.
- Use this heater only as described in this manual. Any other use not recommended by the manufacturer may cause fire, electric shock, or injury to persons.
3. Product Overview
The MORENTO AT-SH26 space heater features an intuitive LED display and touch controls on the top panel, complemented by a remote control for convenient operation.

Image: Top control panel and LED display.
The control panel includes buttons for power, mode selection, temperature adjustment, oscillation, and timer settings. The LED display shows the current temperature and selected mode.

Image: MORENTO space heater with its remote control.
The included remote control provides full functionality, allowing users to adjust settings from a distance.
4. Setup
- Place the heater on a firm, level surface.
- Ensure the heater is positioned at a safe distance from walls, furniture, and other combustible materials (minimum 3 feet).
- Plug the power cord into a grounded 120V AC electrical outlet.
5. Operating Instructions
5.1 Power On/Off
- Press the power button on the control panel or remote to turn the heater on or off.
- When turning off, the LED screen will display a 30-second countdown, during which the fan continues to run to dissipate residual heat.
5.2 Mode Selection
Press the 'M' (Mode) button on the control panel or remote to cycle through the following modes:
- H2 (High Heat): Provides 1500W of heating power.
- H1 (Low Heat): Provides 900W of heating power.
- ECO Mode: Automatically selects optimal heating power based on the set temperature and ambient temperature (range: 41-95°F).
- Fan Mode: Operates as a fan without heat output.

Image: Visual representation of the heater's multiple operating modes.
5.3 Temperature Adjustment (ECO Mode)
In ECO mode, use the '+' and '-' buttons on the control panel or remote to set your desired temperature between 41°F and 95°F. The heater will automatically turn off once the set temperature is reached and reactivate if the room temperature drops below the set point.
5.4 Oscillation Function
- Press the oscillation button on the control panel or remote to activate 70° wide oscillation, distributing warm air more evenly.
- Press the button again to stop oscillation.

Image: Heater demonstrating 70° oscillation for wider heat distribution.
5.5 Timer Function
Press the timer button on the control panel or remote to set an automatic shut-off timer. The timer can be set in 1-hour increments, up to a maximum of 12 hours. The heater will automatically turn off once the set time has elapsed.
5.6 Mute Function
The remote control includes a sound button to mute the beeping sound produced when buttons are pressed. This feature is useful for maintaining a quiet environment, especially during sleep.
6. Safety Features
The MORENTO AT-SH26 is equipped with multiple safety mechanisms:
- Tip-Over Protection: The heater automatically shuts off if it is accidentally knocked over. It will not resume operation until manually turned back on and placed upright.
- Overheat Protection: The heater will automatically shut off if it detects an internal overheating condition.
- 24-Hour Auto Shut-off: For continuous operation, the heater will automatically turn off after 24 hours.
- V-0 Flame Retardant Material: Constructed with fire-resistant materials for enhanced safety.
- Enhanced Safety Plug: Designed for secure and safe electrical connection.

Image: Overview of the heater's comprehensive safety protections.
7. Maintenance
Regular maintenance ensures optimal performance and longevity of your heater.
- Cleaning: Always unplug the heater before cleaning. Use a soft, damp cloth to wipe the exterior surfaces. Do not use abrasive cleaners or solvents.
- Storage: When not in use, store the heater in a cool, dry place. It is recommended to cover the heater to protect it from dust.
- Cord Care: Regularly inspect the power cord for any signs of damage. Do not use the heater if the cord is damaged.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Heater does not turn on. | No power, tip-over switch activated, or overheat protection activated. | Check power connection. Ensure heater is upright. Allow unit to cool down if overheated. |
| Heater turns off unexpectedly. | Tip-over switch activated, overheat protection activated, or 24-hour auto shut-off. | Ensure heater is stable and upright. Allow unit to cool. Reset if 24-hour limit reached. |
| No heat output in heating modes. | Heater is in Fan Mode or ECO mode has reached set temperature. | Switch to H1 or H2 mode. Adjust set temperature in ECO mode. |
| Beeping sound is annoying. | Sound function is active. | Press the mute button on the remote control. |
9. Specifications
| Feature | Specification |
|---|---|
| Brand | MORENTO |
| Model Number | AT-SH26 |
| Power Output | 1500W (High), 900W (Low) |
| Voltage | 120 Volts (AC) |
| Color | Deep Black |
| Product Dimensions | 7.44"D x 6.93"W x 11.42"H |
| Item Weight | 3 pounds |
| Special Feature | Oscillating, Thermostat, Timer, Remote Control |
| Indoor/Outdoor Usage | Indoor |
| UPC | 850066943571 |
10. Warranty and Support
For warranty information or technical support, please refer to the contact details provided with your product packaging or visit the official MORENTO website. Keep your purchase receipt for warranty claims.
