The Excel “bakes” the load of wood in its main combustion chamber. It then uses a whisper-quiet fan to drive the combustible wood gases down through the wood embers and then into it's high temperature ceramic combustion chamber. This super-hot ceramic chamber ignites these gases and burns them completely leaving no tars or vapors (creosote) to condense in the chimney. This process can be very accurately controlled, and it is therefore possible to maintain the correct boiler temperature needed to heat the home.

Multi-Fuel Operation

During multi-fuel operation, the boiler will automatically switch from wood to oil, gas, or propane whenever the wood fire burns out. This means you never have to experience a cold home even if the fire is out because you forgot to load wood. Maximum efficiency is achieved because each fuel has it's own combustion chamber and heat exchange tubes.

Heat Storage

Excel boilers may be installed and operated without a heat storage system. However, operating a boiler with heat storage is easier, more efficient, extends boiler life, and allows 12 month operation burning wood.

Heat storage allows batch firing of the boiler so that the fire burns at maximum output and efficiency until the load of wood is consumed. Any heat not used by the home during the burn is stored in the tank for use at a later time for heating or domestic hot water. Please click here to learn more about heat storage.