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Loveland, CO Building Safety: Carbon Monoxide Detectors (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Heat detector location
Attached garage
Interconnection
Tied to smoke/CO alarms in residence
Trigger effect
One device activates, all alarms sound
Applies to
New 1-2 family dwellings
Enacted
Ordinance No. 6372, Dec. 15, 2020

Summary

Loveland's residential building code amendments require more than just a smoke and CO alarm in every home: under Municipal Code § 15.10.020, any one- or two-family dwelling with an attached garage must have a heat detector installed in the garage that is wired into the house's smoke and carbon monoxide alarm system, so that if any single device activates, every alarm in the home sounds.

2. In one- and two-family dwellings a heat detector shall be installed in the garage and tied into the smoke/CO alarms in the residence, so that if one activates, they all activate.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 13).

Full Breakdown

" The requirement assumes the smoke and carbon monoxide alarms already mandated for the dwelling under the adopted Residential Code; Loveland's local addition is the interconnection itself, aimed at the garage as a common point of origin for a slow carbon monoxide buildup from an idling vehicle or a malfunctioning furnace or water heater often located there. Because the garage heat detector is wired into the same circuit as the home's smoke and CO alarms, a fire, heat spike, or carbon monoxide event detected anywhere in that interconnected system triggers every alarm in the house at once, rather than only the alarm nearest the hazard.

1, item 1, showing the city's amendment package treats detection, interconnection, and exterior notification as one integrated life-safety package for new one- and two-family construction. The amendment traces to Ordinance No. 6372, adopted December 15, 2020, and was carried forward with the 2021 IRC re-adoption under Ordinance No. 6586 on November 15, 2022.

Violations & Fines

Constructing or finishing a one- or two-family dwelling with an attached garage in Loveland without the interconnected garage heat detector violates the adopted Residential Code as amended, unlawful under § 15.04.230 and subject to the general municipal penalty at § 1.12.010. The Building Division will not sign off on the inspection record card required by § 15.08.020, and will not release a permanent electric meter, until the interconnected alarm system passes inspection.

Frequently Asked Questions

Does Loveland require a heat detector in the garage?
Yes, for one- and two-family dwellings. Municipal Code § 15.10.020 amends Section R314.2.1 of the adopted Residential Code to require a heat detector in the garage that is interconnected with the home's smoke and carbon monoxide alarms, so any single device activating sets off every alarm in the house.
Why does Loveland tie the garage heat detector into the smoke and CO alarms?
The garage is a common source of both fire risk and carbon monoxide buildup, from an idling vehicle or a garage-located furnace or water heater. Interconnecting the heat detector with the home's smoke and CO alarms under § 15.10.020 means occupants get an alarm throughout the house rather than only near the garage.
Is the garage heat detector rule the same as requiring CO alarms?
No, it is an interconnection requirement layered on top of the smoke and CO alarms already required under the adopted Residential Code. Loveland's local amendment at § 15.10.020 does not create the underlying alarm requirement; it wires the garage heat detector into that existing alarm system.

Sources & Official References

Other rules in Loveland

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