Does the Econoburn boiler produce any smoke?
There are a couple times during a burn cycle that an Econoburn will produce a small amount of smoke. After lighting a new fire, it will take a few minutes to establish a coal bed large enough to raise the temperature of the refractory to a point where the woodgas will combust. This generally takes between 10 and 30 minutes during which time your boiler will produce a little smoke. Once a coal bed is established, the smoke is burned before it is allowed to exit the stack, sending a clean, colorless, and nearly odorless gas up your chimney. Another time your boiler will produce a little smoke is immediately after the boiler comes out of an idle state. During idle, the coal bed and refractory cool down somewhat. It generally takes a minute or two for the blower to fan the coals and generate the heat required to again begin combustion of the woodgas.