Tuesday, June 9, 2015

Reason two for buying a catalytic wood burning appliance.

My second reason for buying a catalytic stove is:

A catalytic stove is easier to use.  The catalytic combustor begins to burn volatile materials in the exhaust stream at 500 degrees F.  Non-catalytic stoves do not begin to perform efficiently until secondary air is introduced to exhaust temperatures that are over 1000 degrees F.

This is a crucial difference for two reasons:

1. The hotter you have to get your fire before you can start operating efficiently, the more heat you send up the chimney.

2. Achieving temperatures of 1000 degrees in a firebox is not an easy task for every homeowner.

Getting secondary light-off in a non-catalytic stove can be difficult for an experienced technician in a test lab, and is much more difficult for a homeowner using cord wood of varying moisture content and density.

To achieve efficiency in a catalytic stove, all you have to do is close the catalytic bypass damper when the exhaust stream approaches 500 degrees F. (typically about 35 minutes after kindling a fire, or 15 to 20 minutes after refueling.

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