Anything above freezing would work then. I used to keep small / medium sized engine room toasty with a 60W trouble light on and vents covered /...
While I'm typing away, I'll bring up Cat power. Stay away from anything smaller than 3406s. Quickly keep walking (run) past anything with 31XX...
You still have to shop for a quality MAN shop. Still a few MAN slobs out there But they are quieter, cleaner and more power per cubic foot of...