"Warm Morning wood stoves are pretty large heaters that were popular from the 1940s through the end of the century.
The Locke Stove Company was the originally the manufacturer for these heaters. In the late 1970s and 1980s Locke went out of business. Martin Industries then picked up the model line and made some units and parts but they to went bankrupt around 2000.
They often had a distinctive barrel shape. They had models for oil, wood, and gas as well as coal. Some were a coal/wood dual heat solution. A common problem is with overfiring but if you can control it these seem to be solid heaters."