I recently checked out a friends basement space heater. I figured it would be no big deal the pilot keeps blowing out. Checked the heater, it was ventless type bought at homedepoit, no model or anything. The guys is retired from the gas company and he changed the thermocouple 3x already. I checked it and found the thermocouple is short and does not sit in the flame. I think its more like a powerpile type sensor. I noticed the flame is about 1/8-3/8" away from the sensor. Gas valve is none adjustable....Gas pressure is OK. Feeling like an idot, I pulled the pilot thinking it had to be adjusted only to find out its stationary, no adjustment. As a commerical guy, this puppy gots me stumped?