In this video Tom talks about how he built a metal wood stove to help heat his shop area. The welding/fabrication shop is a six thousand square foot metal building. The new wood stove does a good job of efficiently heating the space.
Tom came up with the design after careful research. It has an air intake at the bottom of the wood stove, that may someday be hooked to an outside air source to prevent recirculation of conditioned air.
Tom built a removable ash drawer to help reduce ash in the stove.
The metal stove is built out of five eights inch plate.
Tom welded in smoke shelves and pipes to help facilitate movement of the fire and heat. One of the tubes holds a thermostat from an attached thermostat motor. As the air gets warmer in the tube, it fires up a blower. Once the fire has died down, say in the middle of the night, the blower will switch off.
Tom also fabricated two pieces of rectangle tube to hold a water/antifreeze mix. A heat exchanger will be added to carry heat from one area of the shop to the shop addition.
One thing that Tom would change on the design is installing fewer smoke shelves on the inside of the wood stove. Having lots of smoke shelves allows for too much ash build up on the inside of the stove. Tom had to drill in several extra holes so that he could blow out the smoke shelves two or three times per year.