The most common type of multi-fuel stove combines a traditional wood stove in the open air with fuel oil, propane or natural gas burner. The addition of a fuel burner to the wood stove can be useful in many ways.

It can be used to backup heat when the fuel supply is notStove with wood or as the sole source of heat if they are not firing with wood. The burner can also burn at the beginning of the cycle to the secondary combustion chamber, reduces the emissions preheat start to run.

A wood pellet / corn version of the multi fuel outdoor furnace, you have to replace the burning of wood. This is actually a multi-multi-fuel stove with the ability to burn corn or wood pellets, heating oil, propane or natural gas with the backup burner.

AlthoughMulti-fuel capability is based on most major outdoor wood furnaces standard
There is an option on less powerful models, add approximately 25% of the purchase price.

According to one manufacturer of wood / oil dual fuel outdoor furnaces, laboratory tests show efficiencies of 85% or better.

Given the constant price fluctuations for all types of fuel, a multi fuel outdoor furnace has the ability to hedge against a circular fuel prices. If the cost to heat your home withNatural gas is less than heating with wood, the transition from wood to gas is a simple matter of turning the fuel selector knob.