What can a 14 kW generator power?

Typically a furnace, well pump, refrigerator, lights, internet and a few outlets. It usually will not run central air conditioning and electric heat at the same time.

Does it run on natural gas or propane?

Both. It ships set up for natural gas and needs a small conversion for LP. Output is slightly lower on natural gas than on propane.

Does it start automatically?

Yes. With a transfer switch installed, it senses the outage, starts and switches the home over within seconds, then shuts down when utility power returns.

Can I install it myself?

No. It needs a licensed electrician and gas fitter for the transfer switch, gas piping and permits. Generac recommends a certified dealer.

How often does it need service?

Oil and filter changes roughly every year or 200 hours, plus an annual check of the battery, spark plug and valves. Generac's maintenance kit covers most of it.

Is it quieter than a portable generator?

It is quieter than most open-frame portables, but air-cooled standby units are louder than liquid-cooled models. Expect normal conversation level nearby when it runs.