We have been performing a lot of gas log services calls of late. Yes it finally got cold and I mean COLD.. One issue we are seeing with LP logs are the pilot assembly are getting a lot of wear and tear from years of usage.
LP gas is by nature a hotter burning gas than NG (natural gas) so stuff exposed to the flame like the thermocouple, thermopile and in some models the pilot burner tube itself deteriorate faster.
This pilot assembly is from a LP system that has the incorporated ODS sensor which is common in the vent free type gas logs we see. You can see how the lower barrel section look quite gnarly and rough.
here you see the difference of a new assembly on the bottom and old one on top.
When the LP pilot is burning the tip is actually glowing red hot. (it looks like a monster’s eye to see it from across the room at night 🙂 ) This is to make sure all the gas is burned to prevent sooting and CO2 from the pilot.. One thing we hear from folks is they notice more of a gas type smell when the pilots get old and damaged like this.
Reason is the gas is not being completely burned allowing the mercaptan ( a product put in gas to give it the rotten egg smell) to make it to the room but not in large qaunities like with a leak, hence the faint gas smell..
If you have a unvented LP gas logs system and want to help prolong it life, and save LP gas in your tank, shut off the pilot after the season is over. It like not shutting off your car when you get home allowing it to idling your car all night. That uses a lot of gas which is wasteful on both fronts.
If you need gas log service or other chimney related repairs give us a call at 919-772-8110