I have a rusted out natural gas heater hanging in my garage.

What are my options/benefits/negatives with electric?

It is a typical attached 2 car size.

Looking for any info of if I need to go with gas or electric.

Thanks on any info and leads.

V
OUT

Heating with electric can be very expensive. If you only heat your garage once in awhile it might be fine, but if you heat your garage all the time, I wouldn't even consider it. The other problem with electric heat, is it takes a pretty hefty circuit to power a heater capable of heating a garage. So while the heater itself might be cheap, it could be pretty expensive to wire it.

Bottom line: If you already have the gas piping and vent, just go with a new gas heater. Do you have natural gas or propane? How big is your garage?

This.
You won't regret it.

I have the bigger version of this in my 4 car attached garage, and I have this one temporarily heating my shed (I will put a full size furnace and ductwork in next year)

http://www.northerntool.com/shop/tools/product_200577749_200577749

They are great units and if you watch the Northern sales you can get it for a bit less.  They are in stock at the west allis store right now.

What can be used to heat a basement?

Ever since the first floor remodel, and the ducting was repurposed, it's not as warm.

Walls are mortared fieldstone, about 18" thick. Most walls have some paneling and drywall finish over them, but even with foam panels, these walls suck up a lot of heat it seems.

Can you add a zone system to your existing furnace?  It would be a second hot air duct with a damper.  You would have a second Thermostat in the basement to control the damper and furnace.  Probably the best way to heat a basement in a forced air system.