DirectVent Pro is a unitized, coaxial venting system designed for use with direct vent gas or propane stoves, heaters, and fireplaces.

Gas fireplace inserts are gas-powered heating elements designed to fit inside an existing ... There are two types of gas fireplace inserts: direct-vent and ventless Besides researching the cost, if ...

you do need an existing natural gas line to be able to use them. Direct vent water heaters bring combustion air from outside and exhaust gasses directly outside your home. Installing a vent pipe ...