grumpy wrote:So Will, whats the big difference between a Bit stove and a Anth stove?
Florences are specifically designed for Bituminous. The extra huge barrel is to allow ample room for air and hydrocarbons to mix and burn.
The biggest aspect is the super heated secondary air ring above the fire pot. This provides hot air over the fire to burn the hydrocarbons with little loss. The air comes in above the fire pot already hot enough to ignite the gas on contact. There is no loss of combustion efficiency due to the secondary air robbing heat from the fire before it gets hot enough to do its job.
Anthracite stoves provide small ports for a limited amount of secondary air to aid combustion as Anthracite has a small amount of hydrocarbons to burn.