
What Powers a Generac Home Generator
A Comprehensive Guide to Generac Home Generators
A Generac home generator is powered primarily by either natural gas or liquid propane, providing reliable backup power during outages. Understanding what powers a Generac home generator is crucial for homeowners looking to ensure their homes remain functional during power interruptions. These generators are designed to automatically detect power loss and switch on, providing essential electricity to your home within seconds. In this guide, we will delve into the various power sources, operational mechanics, and maintenance practices that ensure your Generac generator runs smoothly. We will also discuss the advantages and disadvantages of different fuel types, helping you make an informed decision about which generator is right for you.
What Powers a Generac Home Generator?
Generac home generators are typically powered by two main fuel sources: natural gas and liquid propane (LP). Each fuel type has its own set of advantages and disadvantages, which can influence your choice depending on your specific needs and availability.
Natural Gas vs. Liquid Propane
Fuel Type | Advantages | Disadvantages |
---|---|---|
Natural Gas | - Continuous supply from utility
- Generally cheaper than propane |
- Requires existing gas line
- May not be available in all areas |
Liquid Propane | - Portable fuel source
- Can be stored for emergencies |
- Requires regular refilling
- Generally more expensive than natural gas |
How Does a Generac Generator Work?
When a power outage occurs, the Generac home generator automatically detects the loss of electricity and activates within seconds. Here’s a step-by-step overview of how the generator operates:
Step 1: Detection
The generator monitors your home’s electrical system continuously. When it detects a power outage, it sends a signal to start.
Step 2: Activation
The generator starts up and begins to supply power to your home within seconds, ensuring minimal disruption.
Step 3: Power Supply
Power is restored to your home, allowing you to continue using essential appliances and systems.
Step 4: Shutdown
Once utility power is restored, the generator automatically shuts down and returns to standby mode.
Maintenance Tips for Your Generac Generator
To ensure your Generac home generator operates efficiently, regular maintenance is essential. Here are some key maintenance practices:
- Check the oil level and change it regularly.
- Inspect and clean the air filter.
- Test the battery and replace it if necessary.
- Run the generator monthly to keep it in good working order.
Key Takeaways
- Generac generators primarily use natural gas or liquid propane.
- Natural gas is often more economical and convenient.
- Regular maintenance is crucial for optimal performance.
- Generators can automatically detect outages and activate within seconds.
Quick Facts
FAQs
- What is the lifespan of a Generac generator? Typically, a well-maintained Generac generator can last over 20 years.
- How often should I run my generator? It is recommended to run your generator for about 30 minutes every month.
- Can I use my generator for an extended period? Yes, as long as it has a sufficient fuel supply and is properly maintained.
- What size generator do I need? The size depends on your power requirements; consult a professional for an assessment.

Jaden Bohman is a researcher led writer and editor focused on productivity, technology, and evidence based workflows. Jaden blends academic rigor with real world testing to deliver clear, actionable advice readers can trust.
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