We have 2 ways we Check for CO emissions from your gas furnace. We use a CO sniffer that tells us the amount of CO being emitted, if any. Secondly, we do a visual inspection. Call us today at 214-437-6603 and let's make sure you are not emitting CO from your gas furnace.
Also, remember you should have ALL gas furnaces checked, YES even new ones, each year before heating season. We want to keep you as a customer for a long Time!