First decide which loads matter during an outage. Whole-home backup and selected-circuit backup can require different generator sizes and transfer equipment. Generator placement, exhaust, fuel type, weather protection, and manufacturer instructions also matter.
What to consider
Never operate a fuel-burning generator in a home, garage, or other enclosed space. Keep generators outside and away from openings as instructed by the manufacturer. Never connect a generator to a home through a wall outlet or improvised cord; dangerous backfeeding can occur.
Practical next steps
A qualified professional can review the expected loads and recommend compatible transfer equipment. Installation and inspection requirements depend on the site and applicable rules.
When to seek qualified help
Electrical faults should not be diagnosed by trial and error. Do not bypass protective equipment, open electrical panels, or work on energized wiring. If there are signs of smoke, fire, arcing, or immediate danger, move away and contact the appropriate emergency service.
Requirements and recommendations depend on the equipment, the installation, manufacturer instructions, and applicable local rules.