Standby Generator Install - Pad, Placement, and Clearances
Last verified: September 2026
A standby generator is wired in, fueled by gas, and starts on its own — so where it sits and how far it stands from your windows is set by the manual and the code. Here's what to expect. Rather talk it through? My number is (330) 200-8042.
Siting a Standby Generator, at a Glance
A standby generator is permanently installed — wired in, fueled by natural gas or propane, and starting automatically through an automatic transfer switch. It sits on a level, well-drained pad, kept up out of flooding and snow, at the clearances from windows, doors, and vents that the manufacturer's manual and local code require. The exhaust is engineered to vent safely, but it's still carbon monoxide — which is why those clearances are a safety rule, not a suggestion. It's a team job: a licensed electrician, a licensed gas pro, a permit, and an inspection. There's a printable page-by-page version up top.
Common Questions
1 How is a standby generator different from a portable?
A standby unit is permanently installed — hardwired into your home, fueled continuously by natural gas or propane, and starting automatically through an automatic transfer switch, often within seconds of an outage. A portable is rolled out, fueled by hand, and connected with a cord.
2 How far from the house does it have to sit?
It's set by the manufacturer's manual and local code, with specific clearances from windows, doors, and vents. There's no single universal number — the installer follows both, and where they differ, the stricter one wins.
3 What kind of pad does it need?
A firm, level, well-drained base — usually a poured concrete pad or a manufacturer-approved composite pad — kept above where water pools and high enough that drifting or plowed snow won't bury the unit. Not bare dirt, gravel, or a few patio blocks.
4 Who installs it?
It's a team job. A licensed electrician handles the wiring and the automatic transfer switch; a licensed gas professional connects the natural-gas line or propane tank; and the work needs a permit and an inspection. I help you plan the spot, choose the unit, and coordinate the pros.
5 Do I still have to worry about carbon monoxide?
Yes. The exhaust is engineered to vent safely, but it's still carbon monoxide, which is exactly why the clearances from windows, doors, and vents exist. Keep battery-backup CO alarms tested inside, just as you would for any generator.
6 Natural gas or propane — does it change the placement?
It can. Natural gas means no fuel tank to site; propane means placing a tank with its own setbacks and delivery access. Both still require the unit's clearances from the house, and both are a licensed gas pro's job.
Would You Rather I Just Help?
Planning a safe, code-aware spot, choosing a unit that fits, and coordinating the licensed pros is exactly what I help with — with nothing to sell you. $99 flat for a visit, 30-day come-back-free.
Would you rather I just do this for you?
No shame in it — plenty of folks would rather hand it off, and that's what I'm here for. I'll come to your home, set it up right, and make sure it's working before I leave. Flat $99 per visit — no jargon, no upsell, and every visit is 30-day come-back-free.
Not a hardware job? I can often fix it remotely for $49 — a secure screen-share, up to 2 hours, that you watch the whole time and can end whenever (included free for $39/mo Support Plan members, and it counts toward the $99 if it turns out I need to come out).