Vulcan Stove Fan Manual
Ver. 6 01/10/2016
Page 2 of 2
Fine Tuning by adjusting the connecting rods
Your Stove Fan has been factory-set and tested to run at over 400rpm at 450°C. If you find that your Stove Fan does
not run as expected you can adjust the positions of the connecting rods. Optimum positioning for each connecting
rod end is central, as shown in the diagrams, but you might find that your engine runs better with a slight bias to
one side or the other. When adjusting, do not move the connecting rod ends so far that they become jammed on
their shafts or wedged against the cranks, and do not undo any screws on the cranks, these are factory-set to the
correct positions. The con-rod can be knocked/moved in transit so it is important to check this when using for the
first time.
What does it do?
The Vulcan stove fan is a Stirling engine powered fan that quietly and efficiently circulates warm air from your
wood stove, coal stove or other heat source, through your home or workshop dramatically increasing the
effectiveness of your heating appliance and improving your comfort level. No longer will you have to stoke your
stove to blazing hot temperatures only to end up with a VERY hot area in the direct proximity of your stove and
mildly warm air across the room. The Vulcan stove fan helps to uniformly circulate the air, leaving you a cosy,
comfortable atmosphere to enjoy while reducing the amount of fuel your appliance consumes. In addition, the
Vulcan costs you absolutely nothing to operate!
How does it work?
The Vulcan stove fan does not require any electricity whatsoever! No batteries. No mains electricity. The Vulcan is
self-powered just from the heat of the stove. It utilizes a small, quiet Stirling cycle power plant built into the fan.
The Stirling cycle power plant obtains its power from rapidly heating and cooling the same volume of air. When the
air is heated, it expands, pushing a piston upward; when the same volume of air is rapidly cooled, it contracts,
pulling the same piston downward, providing power. The same volume of air is heated and cooled very rapidly
converting the heat energy to mechanical energy used to turn the fan blade.
The Vulcan's fan speed increases relative to the temperature increase of its heat source. So, the hotter your stove,
the faster the Vulcan will run and the higher the volume of air circulated. The Vulcan stove fan uses the latest and
best technology, including borosilicate glass cylinder, graphite piston and ultra-low friction demagnetised bearings.
