Thinkgood thats how I understood it.
The burner motor along with fan adding air has an oil pump.
Stop the pump and no more oil.
As gserve has said it can be more to it.
In the house I grew up in there was a cable run through pulleys with melt out links in it from a valve on the oil tank across to the burner.
If a the cable was released the tank valve would close.
I have not seen this recently though.
[This message has been edited by iwire (edited 11-09-2003).]
