It’s really all about the Heat Exchanging Process & Venting. (Which are together, one and the same)
Simply put, Bock has a Superior tank venting & heat exchange process design all oil fired Bock tanks have something called Turboflue. Which is basically, metal fins that go throughout the vent column. The metal fins captures more heat from the hot exhaust gases before they are released from the top of the tank into the chimney. The metal fins capture more heat and transfers it into the tank, which is a more efficient heat exchanging process that other competitors. Bocks website gets a bit more technical about their patented Turboflue® Heat Exchanger here.
Copying Bock’s design: Although the Turbofle is patented all the other manufactures have added some kind of fins or baffling system to capture more heat.
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