magicheater
Veteran Member
A metal fire box would not work.
The whole concept of a Masonry Heater is that you build a HOT fast fire and store the energy in the masonry mass. The hot fire burns off almost all the gasses, producing almost no smoke/cresote.
The temp needed to atain this type of burn would melt a metal stove.
Slack
I have built hybrid masonry stoves on top of woodstoves for years and have yet to have one melt. Best of both worlds, quick heat off the stove and long term heat off the brick.