Forgive me if this is the wrong place to post this question, I'm just looking for a little guidance.
A few months back (May or June I'd say) I bought a combination natural gas/carbon monoxide detector. At first the carbon monoxide peak level was zero, but then it jumped to 12 and has slowly risen until it now resides at 31. The current reading always says 0 whenever I take a glance at it, but the peak level is concerning me. I've reset it a couple of times to see if it was a faulty reading, but it goes back up within a few days.
What really has me scratching my head is that we only have electrical appliances in the house. Nothing is running off gas except our heating, which does use natural gas. Even though the heat was not running the whole time the levels have been going up, I'm wondering if somehow that is the cause. If that's not it, what else should I be looking at?
Any help or direction would be greatly appreciated.