1. Introduction
Thank you for choosing the QOWETU Portable Space Heater. This 1500W PTC ceramic electric heater is designed to provide fast, efficient, and safe heating for various indoor spaces. Its compact design, oscillating function, and intelligent controls make it an ideal solution for maintaining comfortable temperatures in your home or office. Please read this manual thoroughly before operation to ensure proper use and safety.

Figure 1: QOWETU Portable Space Heater in operation, showing heat distribution.
2. Important Safety Instructions
When using electrical appliances, basic precautions should always be followed to reduce the risk of fire, electric shock, and injury to persons, including the following:
- Read all instructions before using this heater.
- This heater is hot when in use. To avoid burns, do not let bare skin touch hot surfaces. Use handles when moving this heater.
- 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 use outdoors.
- This heater is not intended for use in bathrooms, laundry areas and similar indoor locations. Never locate heater where it may fall into a bathtub or other water container.
- 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.
- 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.
- 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 vapors or 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.
- This heater is made of V0 flame-retardant materials and includes built-in smart tip-over protection, overheat protection, and a 24-hour automatic power off without interaction.
Figure 2: Multi-protection features for safe heating, including V0 flame retardant, ETL listing, enhanced safety plug, tip-over protection, and overheat protection.
3. Package Contents
- QOWETU Portable Space Heater (Model: PTC-SL1701)
- Remote Control (2 AAA batteries not included)
- User Manual
4. Product Features
- Portable Design: Compact 17-inch tower design with a hidden handle for easy movement.
- Fast Heating: Powerful 1500W PTC ceramic heating element heats up in seconds.
- Wide Oscillation: 70° wide-angle oscillation boosts heating coverage by 20%, distributing warm air evenly.
- Energy Saving ECO Mode: Automatically selects optimal heating power based on set and ambient temperatures for precise warmth and energy efficiency.
- Quiet Operation: Oblique Airflow technology reduces wind noise to 32dB, ensuring a quiet environment.
- 12-Hour Timer: Set the heater to automatically turn off after a specified duration.
- Dual Control: Features a top-mounted touchscreen panel and a remote control for convenient operation.
- Advanced Safety: ETL-Certified with V0 flame-retardant materials, smart tip-over protection, overheat protection, and 24-hour automatic power off.
Figure 3: Product dimensions and control panel overview, highlighting heat levels, oscillation, power, and timer functions.
Figure 4: Illustration of the heater's 70-degree oscillation providing wide-ranging heat distribution.
Figure 5: The QOWETU heater operates at less than 32dB, significantly quieter than conventional fans (48dB).
5. Setup
- Unpack: Carefully remove the heater and all accessories from the packaging.
- Placement: Place the heater on a firm, level surface. Ensure there are no obstructions to the air intake or exhaust. Maintain at least 3 feet (0.9 m) clearance from walls, furniture, and other objects.
- Power Connection: Plug the 2-prong power cord into a standard 120V AC electrical outlet. Ensure the outlet is in good condition and not overloaded.
- Remote Control: Insert 2 AAA batteries (not included) into the remote control.
6. Operating Instructions
The heater can be operated using either the touchscreen control panel on top of the unit or the remote control.
Control Panel / Remote Functions:
- Power On/Off (⑂): Press to turn the heater on or off. The fan will continue to run for approximately 30 seconds after turning off to cool down the unit.
- Heat Level / Temperature Adjustment (− / +): Adjusts the heat output or desired temperature in ECO mode. The heater offers three heat levels: H1 (900W), H2 (1000W), and H3 (1500W).
- Mode Selection (≡): Cycles through different modes: H1, H2, H3, ECO, and Fan-only.
- Oscillation (⌒): Activates or deactivates the 70° oscillation function.
- Timer (⏱): Sets the automatic shut-off timer from 1 to 12 hours.
- Mute Mode: The remote control includes a mute button (speaker icon) to silence button beeps.
Figure 6: The 12-hour timer function allows for scheduled operation, enhancing convenience and energy efficiency.
Figure 7: The ECO mode intelligently adjusts heating power to maintain desired comfort levels, optimizing energy consumption.
7. Maintenance
- 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.
- Storage: If storing the heater for an extended period, clean it thoroughly and store it in a cool, dry place, preferably in its original packaging.
- Air Intake/Exhaust: Regularly check and clean the air intake and exhaust vents to ensure proper airflow and prevent dust buildup.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Heater does not turn on. | No power supply; Tip-over switch activated; Overheat protection activated. | Check power cord connection and outlet; Ensure heater is on a flat, stable surface; Unplug and allow to cool for 30 minutes before restarting. |
| Heat output is low. | Incorrect heat setting; ECO mode active. | Increase heat level (H1/H2/H3); Adjust desired temperature in ECO mode or switch to a higher heat level. |
| Oscillation not working. | Oscillation function is off. | Press the oscillation button on the control panel or remote. |
| Remote control not working. | Batteries are dead or incorrectly inserted. | Replace batteries (2 AAA); Ensure correct polarity. |
9. Specifications
| Feature | Specification |
|---|---|
| Brand | QOWETU |
| Model Number | PTC-SL1701 |
| Power Output | 1500W (Max) |
| Voltage | 120V |
| Amperage | 12.5 Amps |
| Heating Coverage | Up to 200 sq.ft. |
| Oscillation Angle | 70° |
| Timer | 1-12 Hours |
| Noise Level | 32dB |
| Product Dimensions | 5.91"D x 5.91"W x 16.43"H |
| Item Weight | 4.71 pounds |
| Cord Length | 6 ft / 1.8 m |
| Safety Features | ETL-Certified, Tip-Over Protection, Overheat Protection, V0 Flame-Retardant Materials, 24-Hour Auto Shut-off |
10. Warranty and Support
QOWETU offers a 30-day return policy and a 12-month warranty for this product. For any questions, concerns, or support needs, please contact our customer service. Our friendly and reliable customer service team will respond to you within 24 hours.
Please retain your purchase receipt for warranty claims.


