St. 221 & 225 were alerted for a CO Alarm with reported illness. 221 Chief arrived on scene finding 4 children and 2 adults outside the residence. 221 Chief dropped a single gas CO Meter inside the house and exited the house and began interviewing the occupants. Occupants stated they had illness over the last week and the only items being used in the house were the stove, dryer, and hot water. 221 Squad and Tower Crew arrived and were directed inside to investigate. Crews located a faulty stove, isolated the power and gas service to the unit and advised occupant to contact a service repairman. Crews also ventilated via natural means and returned in service.