Hooking a generator up to a house must be done with proper equipment (like a transfer switch) and, in most places, by a licensed electrician; unsafe methods like “backfeeding” through a dryer outlet are dangerous and often illegal. If you just bought a portable generator, the safe approach is: use outdoor-rated extension cords directly to appliances, or have an electrician install a transfer switch and inlet so you can plug the generator into the house without risking shock, fire, or backfeed to the grid.

⚠️ Safety and Legal Basics

  • Never try to power your panel by plugging the generator into a wall or dryer outlet (“suicide cord” / backfeeding). This can send power back into utility lines and could kill a lineworker or start a fire.
  • In many regions (including the US, Canada, UK, Australia), only a licensed electrician is allowed to tie a generator into a home’s electrical system; DIY panel wiring can void insurance and break electrical codes.
  • Always run generators outdoors, far from doors, windows, and vents; carbon monoxide can build up and kill quietly and quickly.
  • Keep the generator dry and on a stable surface; use covers or tents designed for generators, not improvised tarps that can trap exhaust.

The Two Main Ways to Use a Generator

1. Simple plug‑in (no panel connection)

This is the “quick and dirty but safe” method during an outage:

  1. Roll the generator outdoors (typically 15+ feet from the house, exhaust pointing away from any opening).
  2. Turn off or unplug the appliances you want to run.
  3. Use heavy‑duty, outdoor‑rated extension cords of the correct gauge for the load and distance.
  4. Plug the cords into the generator’s outlets, then directly into appliances (fridge, freezer, a few lamps, phone charger, maybe a small space heater depending on wattage).
  5. Start the generator and let it stabilize before switching appliances on one by one.
  6. Never exceed the generator’s rated running watts; add up approximate loads and leave a margin.

Pros:

  • No panel work or electrician required.
  • Lowest cost.

Cons:

  • You can’t power hard‑wired items like central heat/AC or well pumps directly.
  • Cords everywhere, lots of plugging/unplugging, easier to overload a cord if careless.

2. Proper house hookup with a transfer switch

This is the code‑compliant way to “hook a generator to your house” so chosen circuits run almost like normal during an outage. Key components:

  • A manual or automatic transfer switch, wired near the main breaker panel.
  • An exterior power inlet box for the generator plug.
  • A dedicated generator cable between generator and inlet.

High‑level process (done by an electrician):

  1. Assess generator size and select which circuits to power (e.g., fridge, boiler, some lights, a few outlets, maybe well pump).
  2. Mount the transfer switch near the main panel and run conduit/wiring between them.
  3. Install the outdoor inlet box, connect it back to the transfer switch, and bond/ground as required by code.
  4. Label the controlled circuits clearly and test the system under load.

How you’d use it during an outage:

  1. Confirm utility power is out.
  2. Wheel the generator to its outdoor spot and connect the generator cable to the house inlet.
  3. Turn generator breakers off, start the generator, let it warm up.
  4. Flip the transfer switch from “LINE” (utility) to “GEN” for the circuits you want.
  5. Monitor load; turn off big loads if the generator bogs down.
  6. When power returns, switch back to utility and shut the generator down.

Pros:

  • No backfeeding, no risk to lineworkers if installed and used correctly.
  • Lets you power critical circuits without extension cords everywhere.

Cons:

  • Higher upfront cost and must be installed by a qualified electrician.

Unsafe Methods to Avoid

  • Plugging into a dryer, range, or other outlet with a homemade male‑to‑male cord.
  • Bypassing or modifying the main breaker to “make it work.”
  • Running the generator in a garage, shed attached to the house, or under a deck near vents or windows.
  • Using undersized or indoor-only extension cords, running cords through standing water, or daisy‑chaining multiple cords/power strips.

These are the shortcuts often discussed on forums, but they carry real risks of electrocution, fire, and carbon‑monoxide poisoning.

Practical Tips Before You Install Anything

  • Check your local electrical and building codes; some areas require permits and inspections for any generator tie‑in.
  • Decide what you truly need to power in an outage (heat source, fridge/freezer, medical devices, communications). This determines generator size and how many circuits you prioritize.
  • Talk to a licensed electrician about:
    • Transfer switch vs. other code‑compliant devices (e.g., interlock kits in some jurisdictions).
    • Grounding requirements for your specific generator model.
    • Surge protection for sensitive electronics.

Quick TL;DR

  • To safely “hook a generator to your house,” you either:
    • Use extension cords directly from generator to appliances, or
    • Have a licensed electrician install a transfer switch and inlet so you can plug the generator into the house safely.
  • Never backfeed through a wall or dryer outlet, and never run a generator indoors.

If you share your country/region and generator size, a more tailored, step‑by‑step outline (including what to ask an electrician for) can be sketched out.