where would I look for used comercal heaters?

Question

hook up 240volt ceiling mount pevered

Answer 1

You can browse this site:
http://www.local.com/results.aspx?keyword=used+equipment&cid=50&gid=US_2_-_Seattle

There is such a risk of fire and damage with used heating equipment that I would be surprised if you find any for sale from a dealer. Try advertising on craigslist in the "Wanted" section:

http://seattle.craigslist.org/wan/