Rigid vs foil dryer duct

The short hose behind the dryer matters as much as the outdoor flap. A crushed, U-shaped, or tightly coiled foil accordion hose traps lint in every ridge and is a common reason clothes need a second cycle.

Unplug the dryer before you pull it forward. For a gas dryer, if you smell gas, stop and call your gas utility or a qualified technician.

What to look for behind the machine

Foil hose kinked where the dryer sits too close to the wall.
A sagging floor loop that holds water and lint.
Peeling tape at joints that leaks warm air into the laundry room.
Plastic or thin foil used as a long-term duct — poor choices for heat and lint.

Short rigid or semi-rigid metal with few bends is the usual upgrade for the visible run behind the dryer. Keep the path as straight as the space allows.

After you change the hose

Seat both ends fully on the dryer outlet and the wall or floor fitting.
Use a clamp rated for dryer duct — not a loose twist of wire that cuts the hose.
Leave space behind the dryer so boxes and baskets cannot kink the new run.
Run a short empty cycle and confirm the outdoor flap moves and the puff of air feels strong.

Brush kits clean lint; they do not fix a crushed hose. If the duct disappears into a wall, ceiling, or crawlspace you cannot see, stop and use a technician rather than forcing a brush into an unknown path. For the full slow-dry walk-through, use the two-cycle vent checklist.

What to look for behind the machine

After you change the hose

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