The newest state of the art technology today is direct-vent technology.
Direct-vent gas units exhaust their gases through a wall, in similar
fashion to your clothes dryer, so you eliminate the
inconvenience and sometimes expensive cost of a vertical chimney or chase.
Direct-vent appliances can be vented directly through the ceiling or
roof. Direct-vent products are sealed
combustion appliances that do not use room air from your home.
Direct-vent systems carry the burnt flue gases to the outside, while bringing
in fresh outside air for combustion.
To
maintain good indoor air quality while utilizing a gas appliance, your choice
should be a direct-vent gas product. These appliances are a
fairly new and extremely popular innovation, and they completely isolate the
combustion process from the air in the home. The air for combustion is
brought directly from the outside into the firebox, which is sealed completely.
The burned gases are then vented directly outside.
This balanced system is unaffected by fans or drafts in the home and is
perfect if someone has respiratory problems or is concerned about indoor
air quality. Because the direct venting stops on the outside of
the wall, no expensive vertical chimney or enclosing chase is needed, making the
product in deal for lower levels and condominiums.
Direct Venting has become the dominant form of venting in the hearth industry.
The Direct Vent Gas Stove
The Lopi Berkshire Gas Stove
The
gas fires in Berkshire Cast Iron and Stone Stoves are so beautiful that is is
hard to believe you are not staring into a real wood fire. What appears to
be a beautiful antique wood stove is actually the most technologically
advanced gas burning stove ever designed. The cast iron body (#1)
conceals a sophisticated steel firebox (#2). A convection heat heat
exchanger (#3) circulates the room air (#4). There is an optional
convection blower (#5). The breakthrough Ember-Fyre Gas Burner
(#6) has glowing embers, hand carved logs and dancing yellow flames (#7).
The Berkshire Stove features direct vent technology: the entire combustion process is completely isolated from the interior home environment, guaranteeing optimum air quality. Combustion air (#8) is drawn into the sealed combustion zone via a chamber in the double-wall vent system. Exhaust gases (#9) exit in the center of that same vent.