The previous owner didn't leave any paperwork and from what I can tell, the only thing stamped on it says "Patent Pending - Frontier - 1977". I'm interest in learning more about it and possibly what it's worth.
Bought a new home, anybody know about this model of stove?
Appears to be another pre-EPA stove. Hundreds of companies started up in the 70s/80s before government regulators put 75-90% of them out of business. Depending on your location, old stoves in that type condition can usually be sold on craigslist Oct-Dec for between $400-$500. You can see examples of used stoves like this at www.hearthstoveandpatio.com Hope this helps!