Iowa City, IA Building Safety: Carbon Monoxide Detectors (2026)

Iowa City Code section 17-5-19(L), "Heating And Cooling Equipment," requires carbon monoxide alarms in dwelling units that contain fuel-fired appliances or that have an attached garage with an opening communicating with the dwelling unit, capturing both furnace/water-heater exposure and vehicle-exhaust exposure from an attached garage. The same subsection sets the surrounding heating-safety standard the CO rule is embedded in: heating equipment must be maintained in good and safe working condition and capable of heating all habitable rooms, bathrooms and toilet rooms to the minimum temperature the code requires, and no combustible material may be stored within three feet of a fuel-burning furnace or fuel-burning hot water heater.

This CO alarm duty is distinct from the separate smoke-detector mandate in section 17-5-18(D); the two are enforced together but sit in different articles of chapter 17-5, one governing minimum structure standards and the other governing ongoing owner maintenance responsibilities. The Neighborhood and Development Services Department confirms CO alarm presence as part of the rental inspection cycle tied to a unit's certificate of structure compliance, and section 17-5-19(N) separately requires that any required safety equipment present in a unit, including alarms, be kept functioning and not be removed, shut off, or disconnected except for the brief window needed to repair or replace it.