You may find, the dryer vent, might be a bottle neck in your exhaust. Most standard vents are 4" in diameter. You'll need atleast 6" to
get a good cfm flow. If you have more than 1 miner attached, you'll need around 10". The length of the hose connecting miners, to the
vent can also be too long. If it is, you'll need an in line fan, or similar, to pull the air through the hose. The fans on miners do not handle
the static back pressure very well, they like to breath freely.