Here are some general steps for installing a mini convection heater:

1. Choose a suitable location: Select a location where the heater can be safely mounted, with sufficient space for proper ventilation and clearance from flammable materials.

2. Assemble the mounting bracket: Many mini convection heaters come with mounting brackets that need to be assembled before installation. Follow the manufacturer's instructions to attach the bracket to the back of the heater.
   

3. Mount the bracket: Use screws and anchors to securely mount the bracket to the wall or other suitable surface.

4. Connect the power supply: Connect the heater to a suitable electrical outlet, ensuring that the voltage and amperage are compatible with the heater's requirements.

5. Turn on the heater: Once the heater is connected to power, turn it on and set the desired temperature and fan speed according to the manufacturer's instructions.

6. Monitor the heater: Keep an eye on the heater during its initial operation to ensure that it is working correctly and that there are no safety concerns.

It is important to note that the specific steps for installing a mini convection heater may vary depending on the model and manufacturer. Be sure to carefully read and follow the manufacturer's instructions for installation, use, and maintenance to ensure safe and efficient operation. If you are unsure about any aspect of installation or have questions, consult a qualified electrician or HVAC technician for assistance.