Introduction
The PETNF D2303 Dog House Heater is designed to provide a warm and comfortable environment for your pets in outdoor shelters such as doghouses, chicken coops, and rabbit cages. This heater features a thermostat, Wi-Fi control via a smart app, and multiple safety mechanisms to ensure reliable and efficient operation.
Safety Information
- External Temperature Probe: The heater utilizes an external temperature probe for accurate temperature measurement, preventing overheating or chilling.
- Overheat Protection: Built-in safety features automatically shut off the heater if it detects overheating.
- Internal Heat Shield: Safeguards internal components without requiring extra ventilation.
- Durable Anti-Bite Cord: Equipped with a 1.97FT metal anti-bite cord to protect against pet damage.
- Rounded Corners: Designed with rounded corners for enhanced pet safety.
- IPX5 Waterproof Controller: The controller is designed to withstand outdoor conditions.
- Child Lock: The controller features a child lock to prevent accidental changes to settings.
Setup and Installation
Proper installation is crucial for the safe and effective operation of your PETNF D2303 Dog House Heater. Please follow these steps carefully.
Mounting the Heater
- Choose Location: Select a suitable location inside the pet shelter, ensuring it is at least 2 inches from the bottom and 8 inches from the ceiling for proper ventilation.
- Secure Bracket: Use the provided screws to secure the fall prevention bracket to the wall of the pet shelter.
- Mount Heater: Attach the heater unit to the secured bracket.
- Connect Power: Plug the power cable into a suitable outdoor-rated power outlet.

Controller Installation Options
The controller can be installed in several ways for convenience and accessibility:
- Direct Attachment: Use the included 3M stickers to attach the controller directly to the dog house without drilling.
- Under Eaves: Hang the controller under the eaves of the doghouse using the provided screws.
- Near Door: For rainy or snowy weather, hang the controller near the door for easy operation.
App Connectivity
- Download App: Scan the QR code or visit petnf.com/pages/download-ios-android-app-by-petnf-lesotc to download the PETNF app.
- Connect to Wi-Fi: Ensure your phone is connected to a 2.4GHz Wi-Fi network.
- Pair Device: Follow the in-app instructions to add and pair your heater device.
- Remote Control: Once connected, you can control the heater remotely via the app.

Installation Video
Operating Instructions
The PETNF D2303 heater offers flexible control options to maintain optimal warmth for your pet.
Temperature Control
- Adjustable Range: Set the desired temperature between 41°F and 113°F using the thermostat controls or the smart app.
- External Probe: The external temperature probe ensures accurate temperature readings within the pet's environment.
Timer Functions
- Heating Duration: Set heating durations from 0 to 24 hours.
- Smart Scheduling: Use the app to schedule daily heating times, similar to setting alarms, to match your pet's needs and weather conditions.
ECO Mode for Energy Saving
- Automatic Operation: In ECO mode, the heater automatically stops when the set temperature is reached and resumes when the temperature drops 2°C/4°F below the set point.
- Consistent Warmth: This mode ensures consistent warmth while minimizing energy consumption.


Maintenance
Regular maintenance ensures the longevity and optimal performance of your heater.
- Cleaning: Periodically wipe the exterior of the heater with a soft, dry cloth. Ensure the unit is unplugged before cleaning.
- Ventilation: Keep the air intake and exhaust vents clear of any obstructions to maintain proper airflow.
- Cord Inspection: Regularly inspect the power cord and external temperature probe for any signs of damage. Do not use the heater if any part is damaged.
Troubleshooting
If you encounter any issues with your PETNF D2303 heater, refer to the following common troubleshooting steps:
- Heater Not Turning On:
- Check if the power cord is securely plugged into a working outlet.
- Ensure the main power switch on the unit is in the 'ON' position.
- Verify that the thermostat is set to a temperature higher than the current ambient temperature.
- No Heat Output:
- Confirm the heater is not in ECO mode if immediate heating is desired, or check if the set temperature has already been reached.
- Inspect the external temperature probe for proper placement and connection.
- App Connectivity Issues:
- Ensure your smartphone is connected to a 2.4GHz Wi-Fi network.
- Restart the heater and your smartphone, then attempt to re-pair the device through the app.
- Check for any app updates.
- Overheating:
- If the heater repeatedly shuts off due to overheating, ensure there are no obstructions around the air vents.
- Verify that the heater is installed with adequate clearance from the bottom and ceiling of the pet shelter.
Specifications
| Feature | Detail |
|---|---|
| Brand | PETNF |
| Model Number | D2303 |
| Power | 500W |
| Special Features | 3-Second Rapid Heating, Accurate Temperature Control, ECO Mode & Energy Saving, Overheat Protection, Wi-Fi Enabled |
| Color | Black |
| Indoor/Outdoor Usage | Indoor, Outdoor |
| Product Dimensions | 3"D x 4"W x 4.5"H |
| Recommended Uses | Chicken Coop, Dog House, Greenhouse |
| Mounting Type | Wall Mount |
| Heating Coverage | Up to 125-150 Cubic Feet |
| Fuel Type | Electric |
| Min Temperature Setting | 41°F |
| Max Temperature Setting | 113°F |
| Item Weight | 1.5 pounds |



