Exhaust air is removed by the liner, which then brings combustion air into the appliance inbetween the inner liner and outer wall. This is a double wall pipe.
« Back to Glossary IndexDirect Vent
« Back to Glossary Index
Exhaust air is removed by the liner, which then brings combustion air into the appliance inbetween the inner liner and outer wall. This is a double wall pipe.
« Back to Glossary Index