When determining what size generator is needed for a 1200 sq ft house, several factors come into play, including the appliances, heating/cooling systems, and essential devices you want to power during an outage. Here’s a general guide to help you choose the right generator size:

Key Factors to Consider:

1. Power Needs: Make a list of essential devices like refrigerators, HVAC systems, lights, water heaters, and any other critical appliances. Calculate their wattage to estimate your total power needs.
2. Running vs. Starting Watts: Many appliances require more power to start up than to keep running. Your generator must handle the initial surge of power, especially for devices like refrigerators or air conditioners.
3. Fuel Source: Consider whether you want a portable generator (typically running on gasoline) or a standby generator (usually powered by propane or natural gas). Standby generators are more powerful and can automatically turn on during an outage.
   

Average Power Consumption for a 1200 Sq Ft House:

For a 1200 sq ft house, if you’re looking to power essential systems, a generator with a capacity of 5,000 to 7,500 watts will generally suffice. This size can run:

• Refrigerator (600-800 watts)
• Lighting (up to 600 watts)
• Furnace or HVAC system (1,000-2,000 watts)
• Water heater (3,000-4,500 watts)
• Small appliances, TV, and electronics

Recommended Generator Size:

• 5,000 to 6,500-watt portable generator: Suitable for powering basic appliances and lights.
• 7,000 to 10,000-watt standby generator: Ideal for more comfort, allowing you to run multiple large appliances, HVAC systems, and even some luxury items like water heaters or laundry machines.

Ultimately, the right generator size for a 1200 sq ft house depends on your specific energy requirements. Always consider a bit more wattage than you think you need to ensure the generator can handle power surges and all essential devices.

*** Can a 3000 watt generator run a house?