Welcome to the
FAQ sheet introduction
Q. How do I tell which technology
my heater uses, spark plug or HSI technology?
A. You must know this to repair &
order parts. Here is a easy, sure-fire way to
read the right stuff without being confused.
Before you do anything, unplug the
heater, and remove the screws that attach the top cover to the
heater. Remove the top cover. This will expose the Ignition
component which provides the method of igniting the fuel and is
located at the end of the combustion chamber nearest the fan. You
will see the air hose from the air pump and the fuel suction hose in