Rocket Mass Heaters, also known by the acronym RMH, are the latest rage when it comes to extremely efficient and sustainable heating methods using low tech materials and basic workmanship.
Even if the name sounds pretty high tech (I mean the Rocket part), Rocket Mass Heaters are not complicated and in certain situations, it may cost next to nothing to build them. Well, next to nothing considering the benefits of such a device, including the amount of money you’ll save on your heating bill during cold months.
Why are they called Rocket Mass Heaters, you may ask? Well, the term simply comes from the swoosh sound they make while the fire is burning. RMHs benefit from a very intelligent design which is inspired, in my humble opinion naturally, from the after-burners in jet engines.
You are familiar with afterburners, right? They work by injecting additional fuel into the jet pipe downstream to the turbine, thus increasing thrust, power and what not.
RMH works…well, somewhat similarly.