I bought for a Chinese diesel autonomous heater 12 volts for a garage. At 220 appeared not so long ago in stores. Handles great. Later bought another 12 volt heater. I was not sure that the power supply would pull two heaters, but I decided to try it, since a 220-volt heater costs more than a 12-volt + power supply. If it doesn't work I'll buy another power supply. The result did not disappoint, one block pulls two autonomy.
I wanted to share some pictures to give readers a better sense of what to expect.