How to Install a Dryer

Installing a dryer is a manageable DIY task for most homeowners. Electric dryers are the simplest — connect the power cord, attach the vent duct, and you're done. Gas dryers add a gas line connection that requires more care. Here's a complete step-by-step guide for both.

Before You Start: Check These Requirements

Electric dryer: Requires a 240V/30A outlet (4-prong NEMA 14-30 in homes built after 2000; 3-prong NEMA 10-30 in older homes)
Gas dryer: Requires a gas supply line with a shutoff valve, plus a standard 120V outlet for the controls and motor
Vented dryer: Requires a 4" duct to the outside — see our guide on how to vent a dryer properly
Space: Allow at least 1" on each side and 4–6" at the back for the vent duct

What You'll Need

Power cord (often sold separately — match to your outlet type)
4" flexible aluminum vent duct and hose clamps
Adjustable wrench or pliers
Level
Duct tape or foil tape (not regular tape)

Step 1: Attach the Power Cord (Electric Dryers)

Most dryers are sold without a power cord — you need to purchase one separately to match your outlet type.

Remove the access panel on the back of the dryer (usually 2–3 screws)
Connect the cord wires to the terminal block: center wire to center terminal, outer wires to outer terminals
For 4-wire cords: green (ground) wire connects to the green grounding screw; remove the ground strap between center and outer terminals
For 3-wire cords: leave the ground strap in place
Secure the cord with the strain relief clamp and replace the access panel

Step 2: Connect the Gas Line (Gas Dryers Only)

Ensure the gas shutoff valve is in the OFF position
Apply gas-rated thread sealant or Teflon tape to the male threads of the gas supply pipe
Hand-tighten the flexible gas connector to the supply pipe, then tighten with a wrench (do not overtighten)
Connect the other end to the dryer's gas inlet
Turn on the gas and check all connections for leaks using soapy water — bubbles indicate a leak. If you find a leak, turn off the gas immediately and tighten the connection or call a professional.

Step 3: Connect the Vent Duct

Proper venting is critical for safety and performance. Use rigid or semi-rigid metal duct — never plastic or foil accordion duct, which can trap lint and is a fire hazard.

Attach the 4" Flexible Aluminum Dryer Vent Duct to the dryer's exhaust port using a hose clamp. This 6-ply extra-thick duct is ideal for tight spaces where a rigid duct won't fit.
Connect the other end to the wall vent duct
Secure both connections with hose clamps (included)
Keep the duct run as short and straight as possible — every bend reduces airflow. Maximum recommended length is 25 feet for a straight run, minus 5 feet for each 90° bend.
Seal all joints with foil tape (not regular duct tape, which fails over time)

Step 4: Level the Dryer

Place a level on top of the dryer and adjust the feet until it's level in both directions. Lock the feet with the locking nuts. An unlevel dryer vibrates more and wears out faster.

Step 5: Plug In and Test

Plug in the power cord (or turn on the gas for gas dryers)
Run a short cycle on air-only (no heat) to confirm the drum spins and the vent exhausts air
Run a short heated cycle with a damp towel to confirm heating works
Check the exterior vent cap outside to confirm air is exhausting properly

Safety Reminders

Never use plastic or vinyl duct — metal only
Clean the lint trap before every load
Clean the vent duct annually with a Holikme 30-Foot Dryer Vent Cleaning Kit
If in doubt about gas connections, hire a licensed plumber or gas fitter

A correctly installed dryer runs efficiently, dries clothes in a single cycle, and operates safely for years. The vent connection is the most important part — get it right and everything else follows.

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