Hey Permies! I made video going over my mortar mix I use when building rocket mass heaters and my masonry cook stoves. I share some tips and techniques, talk about Furnace Cement and other alternatives, and share my recipe for a mortar mix that is tried and true. Hope you find it useful, and as always, thank you Permies for letting me share. I hope you are all having a great Fall, getting your harvest put up and wood in the shed! Thanks Permies!!