• Do not install a power humidifier on the warm air plenum.• Do not load wood above secondary air tube. Doing so willcause over-fire and damage to combustion chamber willresult.• Do not attempt to light a wood or coal fire when oil or gasvapors are present. An explosion or flashback could causepersonal injury.• Do not install on combustible floor.• Load wood or coal carefully or damage may result to fire brickor refractory pot liner.• Inspect air filter regularly. Clean or replace as necessary. Filtersize is 20" x 25" x 1".• If an over-fire situation should occur, be sure ash door andfiredoor are closed. Turn thermostat down to close primary airdamper.• In the event of an electrical power failure, be sure ash door andfire door remain closed.• In the event of a soot or creosote fire, call your fire depart-ment immediately. Turn thermostat down to close primary airdamper and make sure ash door and fire door are closed.dangers - caution - fire haZards(burn wood logs or coal only)if duct system cannot accommodate gravity air flow in the event of an electrical power or furnace fan failure,a ul listed spring loaded damper placed in the warm air plenum, equipped with a fusible link that meltsat excessive temperatures and then opens the damper, can be used to reduce the heat in the warm air ducts.