Before regular use
Schedule professional inspection and needed cleaning early enough to address findings before you depend on the appliance. Fire-safety guidance calls for annual professional maintenance; the specific work should reflect the system, deposits and manufacturer's instructions.
Avoid assigning one month to every US home. A primary-heating stove, occasional fireplace and rarely used gas unit have different patterns, and local seasons differ. Choose a reminder based on your expected use and previous service date.
During the season
Keep a simple record of use and changes. Smoke spillage, new odor, water or debris should prompt assessment rather than waiting for the annual reminder. Do not continue operating a system whose safe venting is uncertain.
Follow appliance instructions for owner maintenance. A busy season can create additional needs; the previous inspection is a record of conditions at that visit, not a guarantee for the rest of the year.
After storms or building work
From the ground, note apparent cap displacement, fallen material or new interior stains. Arrange professional access when needed. Roof replacement, window work and appliance changes are useful details to share if performance changes.
Do not assume a storm caused every defect noticed afterwards. Dated photographs and prior reports help the professional distinguish a new change from an older condition.
At the end of regular use
Review unresolved findings and plan non-urgent work while you have time to compare scopes. Retain the report, photos, invoice, installed materials and warranty in one place. Record unknown details rather than filling gaps from memory.
Set the next reminder and keep the appliance manual with your service file. The useful outcome is a traceable history that helps the next professional—not simply another date on a calendar.