My carbon monoxide detectors kept going off in my house. I started to get super frustrated with them. I figured they must have been faulty. All the sudden, out of the orange, I have CO2 coming out of my ears? I unplugged them & forgot about them for around a month. Then I noticed I had flu-like symptoms flaring up a lot. I would get headaches, feel nausea, & be tired. I started reseeing it & it came back as CO2 poisoning. What is going on? I had to dig deep to find out what was causing carbon monoxide in my home. Well I do have a gas heater. If the heat exchanger on a gas heating system cracks, it releases an odorless, tasteless, & scentless gas known as carbon monoxide. I had a Terrell, TX heating system service business come over instantaneously to assess the job. The guy noticed the issue immediately. I had a cracked heat exchanger. What sucks about that heating system service is how extravagant it is. It is about on par with a brand new heater. The guy entirely recommended me to just make the replace. You start with a brand new system. But a new system can be around three to six thousand. The most the heat exchanger would cost is three thousand. The cheapest was five hundred. Thankfully the guy then did a full assessment & figured it would be on a cheaper end. So I made the Texas service over the substitutement. I am just glad I am not being poisoned anymore. That was the spine-chilling part after all.