The seasons are changing, and now is also the time to change your building system from cooling to heating.
A little smell is sometimes normal: A brief burnoff smell when heat is first turned on can be caused by dust accumulated on heating coils during the off-season.
Take advantage of cool outdoor air: During these days with chilly mornings and warmer afternoons, properly operating economizers can provide “free cooling” using outside air.
Test your heating now: It’s better to find a problem during the changeover than during the first cold snap.