This is in no way meant to be an alternative to a thermal mass rocket heater with cob and masonry mass. It is a a good cheap shop heater.
any other concerns ? I am new at this.
thanks for the feedback.
Satamax Antone
gardener
Posts: 3471
Location: Southern alps, on the French side of the french /italian border 5000ft elevation
To be a proper rocket, you need to insulate the bottom of the feed tube, the burn tunel and heat riser. By then, your metal will die at an alarmingly fast rate. If it's not insulated it's no rocket.