- Have furnace or heating system serviced by a qualified service company every two years for a gas furnace
- If you have central air conditioning, make sure the drain pan under the cooling coil mounted in the furnace plenum is draining properly and is clean.
- Lubricate circulating pump on hot water heating system.
- Disconnect the power to the furnace and examine the forced-air furnace fan belt, if installed, for wear, looseness or noise; clean fan blades of any dirt buildup.
- Check chimneys for obstructions such as nests.
- Remove the grilles on forced-air systems and vacuum inside the ducts.
- Turn ON gas furnace pilot light (if your furnace has one), set the thermostat to “heat” and test the furnace for proper operation by raising the thermostat setting until the furnace starts to operate. Once you have confirmed proper operation, return the thermostat to the desired setting.
- Check and clean or replace furnace air filters each month during the heating season. Ventilation system, such as heat recovery ventilator, filters should be checked every two months.
- Check to see that the ductwork leading to and from the heat recovery ventilator is in good shape, the joints are tightly sealed (aluminum tape or mastic) and any duct insulation and plastic duct wrap is free of tears and holes.
- If the heat recovery ventilator has been shut off for the summer, clean the filters and the core, and pour water down the condensate drain to test it.
- Check to see that bathroom exhaust fans and range hoods are operating properly. If possible, confirm that you are getting good airflow by observing the outside vent hood (the exterior damper should be held open by the airflow).
- Clean portable humidifier, if one is used.
- Check sump pump and line to ensure proper operation, and to ascertain that there are no line obstructions or visible leaks.
- Remove interior insect screens from windows to allow air from the heating system to keep condensation off window glass and to allow more free solar energy into your home.
- Ensure all doors to the outside shut tightly, and check other doors for ease of use. Replace door weatherstripping if required.
- If there is a door between your house and the garage, check the adjustment of the self-closing device to ensure it closes the door completely.
- Cover outside of air-conditioning units and shut off power.
- Ensure that the ground around your home slopes away from the foundation wall, so that water does not drain into your basement.
- Clean leaves from eavestroughs and roof, and test downspouts to ensure proper drainage from the roof.
- Drain and store outdoor hoses. Close interior valve to outdoor hose connection and drain the hose bib (exterior faucet), unless your house has frost-proof hose bibs.
- Winterize landscaping, for example, store outdoor furniture, prepare gardens and, if necessary, protect young trees or bushes for winter.
