This is a lovely example of a clean burning cookstove built at Wheaton Labs as part of the 2017 Rocket Heater Jamboree. It isn't technically a Rocket Heater due to its lack of a heat riser, but its insulated double burn chamber allows heated secondary air to mix with any unburned gasses in the upper chamber. Instead of a radiator or bench this stove heats the high-temperature glass cook surface salvaged from a defunct electric stove. The cheapo "casserole lid door" was my little contribution. This design is great for DIY from found materials.