I'm planning on getting a natural gas unit heater installed in my garage, and I had a couple questions.
1) How much difference is there between brands? So far I have one quote with a Lennox/Armstrong one, and another with a Reznor/Cayenne.2) The two guys I've spoken with so far both thought that I'd be better off venting it vertically even though the unit can be horizontally vented. Both of them mentioned fewer corrosion problems that way. Does this sound reasonable?
Thanks,
Crhis