The Homewood Suites hotel at 65 Glastonbury Boulevard in Glastonbury has been evacuated after a carbon monoxide detector went off, according to the Glastonbury Fire Department.
Firefighters detected carbon monoxide in the building, traced the source to a heating unit and are ventilating it.
No one complained of feeling ill and there are no injuries, officials said.
People who were evacuated are at the Hilton Garden hotel and fire officials expect people will be allowed back within an hour.
