Earth Klear Sky 400, Owner'S Manual, Page: 22 / 57

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is able to turn off the heater when the catalyst reaches the
activation temperature, or when the furnace is not calling for
heat. The IBC also provides diagnostics to assist the
professional during installation and troubleshooting. The
IBC is intended to be mounted on the exterior surface of the
Earth Outdoor furnace on the back of the furnace near the
electrical service.
The Catalyst and Catalyst Pre-heater
The catalyst pre-heater is used to activate the catalyst to a
temperature of approximately 510°F. The IBC uses a
thermocouple in the PCD to ensure that the catalyst has
been preheated to the activation temperature before the
blower on the front door of your Earth Outdoor furnace is
powered. The catalyst should reach activation in one to
five minutes or less during each heating cycle.
The catalyst is a stainless steel ribbon coated in precious
metals that causes a chemical reaction. When smoke and
oxygen pass through a heated catalyst the smoke ignites,
reducing the amount of particulates and harmful gasses
released into the atmosphere. This second burn of the
smoke reduces your furnace emissions while producing
temperatures in the range of 1000F to 1400F. This heat is
captured in the Emission Energy Transfer Chamber and
transferred to the furnace water, which provides a high
level of efficiency in the burning of woody biomass.