I built a rocket stove mass heater in my “Earthship” (
https://www.facebook.com/Cronk-Earthship-162709063823518/) and my barrel temperature is only running on the high end around 300 degrees Fahrenheit. My bench gets warm by not really warm and nothing close to hot and I can always touch the pipe exiting the bench out of the house so I am not losing any heater there.
Around what temperature should the barrel be on a rocket stove mass heater.
Attached is a picture of my RSMH I took in October 2015, so it still looks wet in the picture. You can see more picture on the Cronk Earthship facebook page.
