On Jan. 12 around 2:24 p.m., Lakes Area police responded to a home in the 13100 block of Sylvan Avenue after a caller requested a welfare check on an employee who hadn't been heard from since Thursday.
Preliminary investigation showed "extreme levels" of carbon monoxide and found the furnace was plugged with soot and ice. The initial responding officer was treated at Fairview Lakes Hospital for CO exposure. Even the levels outside the house were exceptionally high.
"In any sort of exhaust like from a furnace you're going to have some water vapor, and in that water vapor it will work it's way up with that hot exhaust and once it reaches these sub zero temperatures it can right away turn into ice," Matt Brust with Pronto Heating and Cooling said. Experts say it's important to have your furnace checked once a year.
Along with the faulty furnace, there were no CO detectors or smoke alarms in the house.