Lasse Holmes wrote:CO2 released from fermentation can be used wonderfully for plant/algae but I don't think that exhaust from a rocket will be clean enough. Can algae handle CO not to mention the plethora of other compounds that will be present in the exhaust at different times/stages/conditions? Perhaps some small scale experimentation is in order before too much investment in plannning and construction. I appreciate the approach of not wanting "waste" so don't let my doubt get in the way of your mission. Please share your results for us fellow "gleaners". Canyon
Bob Doyle wrote:I know nothing of the RMH, except for what I saw in the clips. But, my thoughts would be that the bubbling co2 through water would restrict the flow of the exhaust, and from what I saw in the clip the exhaust isn't flowing at a high speed or pressure. Not like a wood stove.
So my concern would be that the draft wold be highly affected and could back up into the living area. I don't think it would be a safe idea.
Tom OHern wrote:A RMH is designed to burn fast and store the heat for a long time. For this, you do not want a fast burn, so I don't think a RMH is the best fit for this project.
paul wheaton wrote:Ernie, Erica and I go into extreme detail on why it is a terrible idea to harvest CO2 from a rocket mass heater for a greenhouse in this podcast: https://permies.com/t/18871
Maybe he went home and went to bed. And took this tiny ad with him:Rocket mass heaters in greenhouses can be tricky - these plans make them easy: Wet Tolerant Rocket Mass Heater in a Greenhouse Plans