The Heir RDA by Surefire Vapor was designed to produce excellent flavor without sacrificing vapor production. It's the best of both worlds.
The direct drip to coil system was designed to quickly get the flavor back by allowing you to drip directly onto your coil (5-7 drops recommended. Dripping more will cause the wick inside the coil to become over saturated and leak from the bottom air holes.)
While driving it is recommended that you place the AFC (air flow control) holes above the negative posts to allow you to directly saturate your cotton instead of the coils. The AFC on the Heir gives you the perfect air flow. Closing off the AFC will give you a tighter draw, more flavor and a hotter vape. The Heir is unlike other bottom air RDAs.
The air flow is adjusted from the top unlike other bottom air RDAs that are adjusted with a hole or slot on the sleeve.
The Heir RDA Specifications:
- Bottom Air
- Dual 3 mm x 7 mm Air Hole Slots
- Unique Top Adjustable AFC System
- Direct Drip to Coil System
- Reduced Chamber
- 4 post
- 2 mm Post Holes
- Copper Center Post
- Adjustable Copper Contact Pin
- 8 mm Deep Juice Well
- 10 mm PEEK Big Bore Drip Tip
- PEEK Insulator