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This is Erica. This is Ernie.
And we design and build rocket mass heaters. Rocket mass heater is kind of a hybrid device.
It’s not technically a wood stove; it’s not technically a fireplace. It’s a combination
of a really clean burning rocket style fire box. Typically, it’s a J-tube configuration,
insulated. It burns all the smoke, all of the fuel that is present in the wood is burned
completely cleanly and then that clean exhaust is channeled through ducting or channels usually
earthen masonry, but any kind of masonry can work. So you get a combination of really clean
wood stove-like heat and good thermal storage where you’re going to be keeping that heat
going after the fire is out, a good 12 to 48 hours depending on the design. So you’ve
got good overnight heat which is one of those things that people really miss when they go
from conventional force air heating to something like a wood stove.
(Musical interlude)