Disadvantages of exterior wood furnaces

After using an exterior wood furnace for two years, we've discovered that they are smoky, useless during power outages, and run through lots of wood.

Outdoor Wood Furnace

Legend Outdoor Wood Furnace Manual, PDF, Stove

Providing Outdoor Combustion Air for a Wood Stove - GreenBuildingAdvisor

Choosing an efficient wood stove

PROS & CONS of an Outdoor Wood Boiler! EP 110

Air: Outdoor Wood Boilers Wisconsin Department of Health Services

Providing Outdoor Combustion Air for a Wood Stove - GreenBuildingAdvisor

Smallest wood stoves

Disadvantages of exterior wood furnaces