New Environmental Protection Agency rules for woodstoves took effect January 1, 2020. The new rules cut the amount of permissible smoke in half.
Dealers can sell out their old, non-compliant stock until May 15.
If you have been thinking about a woodstove or fireplace insert, there might be some screaming deals out there.
The new stoves are likely to be more expensive as many of them rely on catalytic converters to meet the more stringent goals.
Not every manufacturer found it necessary to add catalytic converters. For instance, Drolet seems to have figured out how to inject and mix air in some clever way to negate the need for a platinum/palladium/rhodium catalyst.