Post #116957 by Hehena Haole on Tue, Sep 28, 2004 8:02 PM

Choptop, you can make an auto torch setup with a an auto ignition gas valve, controlled by a low voltage step down transformer from 120v to 24v, and remote switch.
The device you are asking about, to prove flame is called a thermocouple. Its made of 2 different metals that is positioned in direct flame exposure and produce millivolts when heated, that inturn reports to the control board to insure flame presence and keep the valve in an open position.
A low pressure, low volume system will require a little jet experimenting to adjust flame mass and proper gas/air mixture. Its very dependent upon burner porting and system pressure. You can drill the port to get the desired flame mass and then adjust the mixture with jets. You can also use flex gas hose to make it very easy to run the gas lines.
You can use a manual switch or auto switch on a timer. You could also use a cheap solar eye to make, in conjunction with a timer to break, so they auto light at dusk then run for a specified time period. Just add a manual disconnect switch to disable it when not used. Wire these devices in series before the valve. There are a thousand possibilities you can do. Its pretty easy to do and will be fun to design and piece together.

Warning: Gas is very dangerous. Gas systems should be designed and installed by qualified gas certified contractors.

...or guys that would never pay contractors to send under qualified workers out to do shitty work.