Diesel/kerosene: Popular in Japan and the EU, the Toyostove Laser 300 is slightly oversized for micro homes (at 5-15,000 BTU it heats up to 700ft2), but can be run at the low range of heat. It accepts K-1 Kerosene, No. 1 Low Sulfur Fuel Oil, or Ultra Low Sulfur Heating Oil /Ultra Low Sulfur Diesel, and has an electronic thermostat that you can set and forget. Brian used one of these for a week in Montana with 10 degree weather and it worked very well. Note that it requires a 120VAC, and uses 240watts to ‘preheat’ the unit- may not be ideal for off-grid electrical use.