How to Add an Oil Preheater to a Generac Generator System

Adding an oil preheater to a Generac generator system can help improve the performance of the generator, especially in cold weather conditions. Here are the general steps to follow:

1. Determine the appropriate size of the oil preheater based on the generator's oil capacity and the ambient temperature range where the generator operates. You can consult with the manufacturer or a professional to help you choose the right size.

2. Obtain the oil preheater and its installation kit. The kit should include the necessary brackets, clamps, hoses, and other components needed for installation.

3. Locate the oil filter on the generator and remove it. Install the oil preheater in its place, ensuring it is securely attached.

4. Route the hoses that came with the preheater kit from the preheater to the engine block. Connect the hoses to the preheater and the engine block using the provided clamps.

5. Install the thermostat that came with the preheater kit on the engine block, following the manufacturer's instructions. The thermostat will regulate the oil temperature and turn the preheater on and off as needed.

6. Wire the preheater to the generator's electrical system, following the manufacturer's instructions. Make sure to connect it to a power source that is controlled by the generator's control panel, so that it only operates when the generator is in use.

7. Refill the generator's oil reservoir with the appropriate amount of oil, taking into account the additional volume added by the preheater.

8. Test the generator and preheater to ensure they are functioning properly. Monitor the oil temperature and pressure to ensure they are within the recommended range.

9. Regularly inspect and maintain the preheater to ensure it continues to operate safely and efficiently. Replace any worn or damaged components as needed.

It is important to note that installing an oil preheater may require modification to the generator's existing components and may void the manufacturer's warranty. Therefore, it is recommended that you consult with a professional or contact the manufacturer for guidance before proceeding with the installation.