cabin heater and match help

[loganzi]

I don't know what it does when I light the heater in the cabin. I hear a loud crash. What does it do????????????? ???http://ubbxforums.ubi.com/infopop/emoticons/icon_frown.gif

[loganzi]

I don't know what it does when I light the heater in the cabin. I hear a loud crash. What does it do????????????? ???http://ubbxforums.ubi.com/infopop/emoticons/icon_frown.gif

[ritafair]

Hint 1 - When you're facing the heater look to the left. What do you see?

Hint 2 - Where would you need to go to get a closer look at this object?

[AussieMystic]

Lighting the heater generates steam pressure (see gauge at right) which helps to move something. More pressure moves it up, less pressure moves it down.