The two current product lines that are offered by Ventinox is VFT and VG. The VFT product is fairly rigid and is manufactured from 316Ti stainless steel. It is used for all fuels, including oil, wood, and pellet. VG is made from AL29-4C stainless steel and is more flexible. It is designed for gas applications.
Both products are corrugated and continuously welded, leaving no noticeable seam. If you have a wood, oil, or pellet appliance, you likely have VFT. A strong magnet should also stick to the VG, but will not stick to VFT.
Collin C. - NFI Master Hearth Professional
on September 3, 2013