A 4500 Watt Generator can run up to 1500 watts for 12 hours. A 4500 watt generator can power an average size house. A 4500 watt generator can power a small office. A 4500 watt generator can power a medium size office. A 4500 watt generator can power a 3 bedroom house. A 4500 watt generator can power a 2 bedroom house. A 4500 watt generator can power a 1 bedroom house. A 4500 watt generator can power a 1⁄2 bathroom. A 4500 watt generator can power a 1⁄4 bathroom. A 4500 watt generator can power a 1⁄2 bath. A 4500 watt generator can power up 2 1⁄2 bathrooms.