1. Important Safety Instructions
Please read this entire instruction manual before installing and using this heater. Failure to follow these instructions may result in electric shock, fire, or serious injury. Keep this manual for future reference.
- Do not cover the heater.
- Always plug heaters directly into a wall outlet/receptacle. Never use with an extension cord or relocatable power tap (outlet/power strip).
- This heater is hot when in use. To avoid burns, do not let bare skin touch hot surfaces.
- Extreme caution is necessary when any heater is used by or near children or invalids and whenever the heater is left operating and unattended.
- 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 use outdoors.
- To disconnect heater, turn controls to OFF, then remove plug from outlet.
- 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.
- 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.
2. Product Overview
The MORENTO Space Heater AT-SH26 is a compact and efficient electric heater designed for indoor use, offering both heating and fan modes. It features a digital display, thermostat control, and multiple safety protections.

Image: The MORENTO Space Heater AT-SH26, showcasing its compact design, digital display, and included remote control. Warm air is visibly emitted from the front grille.
3. Setup
3.1 Unpacking
- Carefully remove the heater from its packaging.
- Retain the packaging for storage or future transport.
- Ensure all components, including the remote control, are present and undamaged.
3.2 Placement
- Place the heater on a firm, level surface. The unit is designed for tabletop mounting.
- Ensure there is at least 3 feet (0.9 meters) of clear space around the heater to allow for proper airflow and prevent fire hazards.
- Do not place the heater near curtains, furniture, or other flammable materials.
- This heater is intended for indoor use only.
3.3 Power Connection
- Plug the power cord directly into a 120V AC, 60Hz wall outlet.
- Avoid using extension cords or power strips.
3.4 Remote Control Battery Installation
- Open the battery compartment on the back of the remote control.
- Insert one CR2025 3V battery, ensuring correct polarity (+/-).
- Close the battery compartment securely.
4. Operating Instructions
The MORENTO Space Heater AT-SH26 offers various modes and settings for personalized comfort. Control the unit using the touch buttons on the top panel or the included remote control.

Image: Detailed view of the heater's top control panel, showing the power button, mode selection, temperature adjustment, and digital display.
4.1 Power On/Off
- Press the Power button (
) on the control panel or remote to turn the heater ON or OFF. - When turning OFF, the heater will enter a 30-second countdown mode, continuing to blow air to cool the heating elements before fully shutting down. This is normal operation to preserve the heating element.
4.2 Mode Selection
Press the Mode button (
) to cycle through the available modes:
- High Heat (1500W): Provides maximum heating output.
- Low Heat (900W): Provides reduced heating output for energy saving or smaller spaces.
- ECO Mode: Automatically adjusts heating power (between 900W and 1500W) based on the difference between the set temperature and the ambient room temperature to maintain comfort and save energy.
- Fan Only Mode: Circulates air without heating.

Image: The space heater positioned on a desk next to a laptop, with icons indicating 950W Low Heat, 1500W High Heat, Energy Saving ECO mode, and Fan Only mode.
4.3 Temperature Adjustment
In heating modes (High, Low, ECO), use the '+' and '-' buttons on the control panel or remote to set your desired temperature between 41°F and 95°F.

Image: The space heater displaying temperature settings, highlighting the adjustable range from 41°F to 95°F.
4.4 Oscillation Function
Press the Oscillation button (
) to activate or deactivate the 70° oscillation feature, which distributes heat more evenly across the room.

Image: The space heater shown with a visual representation of its 70° oscillation, indicating wide heat distribution.
4.5 Timer Function
Press the Timer button (
) to set an automatic shut-off timer from 1 to 12 hours. Each press increases the timer by one hour.

Image: The space heater's digital display showing a timer setting, with a graphic illustrating the 1-12 hour intelligent timer function.
4.6 Mute Function
The remote control includes a mute button to silence the beep sounds when operating the heater.
5. Maintenance
Regular maintenance ensures optimal performance and longevity of your MORENTO Space Heater.
5.1 Cleaning
- Always unplug the heater and allow it to cool completely before cleaning.
- Use a soft, damp cloth to wipe the exterior surfaces. Do not use abrasive cleaners or solvents.
- Use a vacuum cleaner with a brush attachment to gently remove dust from the air intake and exhaust grilles.
- Never immerse the heater in water or allow water to drip into the interior.
5.2 Storage
- If storing the heater for an extended period, clean it thoroughly as described above.
- Store the heater in its original packaging in a cool, dry place.
- Do not place heavy objects on top of the heater during storage.
6. Troubleshooting
If you experience issues with your heater, refer to the following troubleshooting guide.
6.1 Common Issues and Solutions
- Heater does not turn on:
- Ensure the power cord is securely plugged into a working 120V outlet.
- Check if the household circuit breaker has tripped.
- Verify that the heater is placed on a firm, level surface, as the tip-over switch may be activated.
- Heater stops operating unexpectedly:
- The built-in overheat protection may have activated. Unplug the heater, allow it to cool for 30 minutes, then plug it back in.
- The tip-over switch may have activated. Ensure the heater is upright on a stable surface.
- The 24-hour continuous operation safety shut-off may have activated. Simply turn the heater back on if desired.
- No heat, only fan:
- Ensure the heater is not in Fan Only mode. Select High Heat, Low Heat, or ECO mode.
- Check if the set temperature is higher than the ambient room temperature.
6.2 Safety Features
The MORENTO Space Heater AT-SH26 is equipped with multiple safety features:
- Overheat Protection: Automatically shuts off the heater if it detects an unsafe temperature.
- Tip-Over Protection: Automatically shuts off the heater if it is accidentally knocked over.
- 24-Hour Auto Shut-off: The heater will automatically turn off after 24 hours of continuous operation.
- Flame Retardant Materials: Constructed with V-0 flame retardant materials for enhanced safety.

Image: The space heater with visual indicators for Tip-Over Protection, V-0 Flame Retardant materials, Enhanced Safety Plug, and Overheat Protection.
7. Specifications
| Brand | MORENTO |
| Model Number | AT-SH26 |
| Power Output | 1500W (High), 900W (Low) |
| Voltage | 120 Volts |
| Dimensions (D x W x H) | 7.44" x 6.93" x 11.42" |
| Item Weight | 3 pounds |
| Temperature Range | 41°F - 95°F |
| Number of Modes | 3 (High Heat, Low Heat, Fan Only) + ECO Mode |
| Oscillation Angle | 70° |
| Noise Level | <35 dB |
| Recommended Use | Indoor, Home Office |
| Special Features | Digital Display, Overheat Protection, Portable, Remote Control, Tip-Over Protection, ECO Mode, Timer Function |

Image: The space heater in a bedroom setting, illustrating its ultra-quiet operation at less than 35 decibels.

Image: A diagram illustrating the heating coverage of the MORENTO Space Heater, suitable for areas up to 200 square feet, depicting various rooms in a house.
8. Warranty and Support
8.1 Warranty Information
The MORENTO Space Heater AT-SH26 comes with a 1-year limited warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. It does not cover damage resulting from misuse, accident, unauthorized modifications, or failure to follow the instructions in this manual.
8.2 Customer Support
For technical assistance, warranty claims, or any questions regarding your MORENTO Space Heater, please contact our customer support team. Refer to the contact information provided on the product packaging or the official MORENTO website.
When contacting support, please have your model number (AT-SH26) and proof of purchase readily available.

