Introduction
Thank you for choosing the JNDRO PTC-905 Portable Electric Ceramic Space Heater. This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your new heater. Please read all instructions carefully before use and retain this manual for future reference.
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.

Figure 1: The JNDRO PTC-905 heater incorporates multiple safety features including fire-resistant materials, overheat protection, and tip-over protection.
- 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.
- Always use the handle 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, or similar high-moisture indoor locations.
- 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 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.
- Always plug heaters directly into a wall outlet/receptacle. Never use with an extension cord or relocatable power tap (outlet/power strip).
- This heater includes an Overheat Protection System and a Tip-Over Safety Switch for enhanced safety.
Product Overview
The JNDRO PTC-905 is a compact and portable ceramic space heater designed for indoor use, offering quick heating and multiple safety features.

Figure 2: Front view of the JNDRO PTC-905 heater, showing the ceramic heating element and warm air output.
Components and Controls:

Figure 3: Top controls of the heater, including the Thermostat Control and Power and Setting Control.
- Thermostat Control Knob: Adjusts the desired room temperature (MIN to MAX).
- Power and Setting Control Knob: Selects operating mode (OFF, Fan Only, Warm 700W, Warm 1000W, Warm 1500W).
- Carry Handle: Integrated handle for easy portability.
- Air Inlet/Outlet Grille: Located at the front and rear for air circulation.
- Tip-Over Safety Switch: Located at the bottom of the unit.
Setup
- Unpacking: Carefully remove the heater from its packaging. Retain packaging for off-season storage.
- Placement: Place the heater on a firm, level surface. Ensure it is at least 3 feet (0.9 meters) away from walls, furniture, and other combustible materials. Do not place on soft surfaces like rugs or carpets that could block air inlets.
- Power Connection: Plug the power cord directly into a 120V AC, 60Hz electrical outlet. Avoid using extension cords or power strips.
- Tip-Over Switch Activation: Ensure the heater is placed on a stable, flat surface to activate the tip-over safety switch located at the bottom. The heater will not operate if this switch is not fully depressed.
Operating Instructions
Follow these steps to operate your JNDRO PTC-905 heater:
- Power On: Turn the Power and Setting Control Knob clockwise from the "OFF" position to select your desired mode.
- Fan Only: Provides cool air circulation without heat.
- Warm 700W: Low heat setting for gentle warmth.
- Warm 1000W: Medium heat setting for moderate warmth.
- Warm 1500W: High heat setting for rapid and maximum warmth.
- Set Thermostat: Turn the Thermostat Control Knob to the "MAX" position. Once the room reaches your desired temperature, slowly turn the Thermostat Control Knob counter-clockwise until the heater turns off. The heater will then cycle on and off to maintain this temperature.
- Power Off: To turn off the heater, turn the Power and Setting Control Knob to the "OFF" position. Unplug the heater from the wall outlet when not in use.

Figure 4: The heater provides rapid warmth, suitable for spaces up to 200 sq. ft.

Figure 5: The heater operates quietly, ensuring minimal disturbance.

Figure 6: The heater's compact design allows for effective heating in various indoor environments.
Maintenance
Proper maintenance ensures the longevity and safe operation of your heater.
- Cleaning:
- Always unplug the heater and allow it to cool completely before cleaning.
- Use a soft, damp cloth to wipe the exterior surfaces of the heater.
- Do not use abrasive cleaners or solvents.
- Gently use a vacuum cleaner with a brush attachment to clean dust from the air inlet and outlet grilles.
- Never immerse the heater in water or allow water to drip into the interior.
- Storage:
- Store the heater in a cool, dry location when not in use.
- To prevent dust buildup, it is recommended to store the heater in its original packaging or cover it with a cloth.
Troubleshooting
If your heater is not operating correctly, refer to the following common issues and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Heater does not turn on. |
|
|
| No heat output. |
|
|
| Heater cycles on and off frequently. |
|
|
Specifications
| Feature | Detail |
|---|---|
| Brand | JNDRO |
| Model Number | PTC-905 |
| Type | Portable Electric Ceramic Space Heater |
| Heat Output | 700W / 1000W / 1500W |
| Voltage | 120V AC, 60Hz |
| Heating Coverage | Up to 200 sq. ft. |
| Dimensions (D x W x H) | 4.5" x 10" x 7" |
| Item Weight | 2.68 lbs |
| Safety Features | Overheat Protection, Tip-Over Protection, Flame-Resistant Material |
| Special Feature | Electronic Thermostat |

Figure 7: Dimensions of the JNDRO PTC-905 Portable Electric Ceramic Space Heater.
Warranty and Support
JNDRO stands behind the quality of its products.
- Return Policy: This product is covered by a 30-day return policy.
- Replacement Coverage: A 12-month replacement coverage is provided for manufacturing defects.
- Customer Support: For any questions, concerns, or assistance, please contact our customer support team. We aim to respond within 24 hours. Refer to your purchase documentation for specific contact details.