Only Burn Approved Materials
Caution! Never burn materials which are not approved for your furnace. Residential furnaces are coal-burning only and Commercial furnaces burn wood only. According to Federal Regulations they must be used for these purposes only. It is prohibited to use a Commercial unit in a Residential application.
- First, it negates your warranty.
- Second, there could be substances that could cause combustion, or otherwise damage to persons, property, or the furnace.