James McFall wrote:I am thinking of building a rocket mass heater and was wondering if the 55 gallon drum has to be food grade or not. Thank you.
Lasse Holmes wrote: James McFall wrote:I am thinking of building a rocket mass heater and was wondering if the 55 gallon drum has to be food grade or not. Thank you. No problem, just make sure you pre-burn it outside to get rid of paint/resisdues. canyon
Lasse Holmes wrote: