When I lived in Florida and worked at a Maytag dealership, a lot of customers would come in to buy a new dryer and would wonder why their current one took so long (1.5 to 4 hours) to dry their clothes. Being the person I am who loves doing laundry, I asked them what the set up was regarding the venting of their dryer. 99% of them told me the dryer they had in their garage,a laundry room or the kitchen was vented up through their attic or roof.I explained to them there was no need to replace their dryer (I hated when they wouldn't listen because the new ones would always come back)and to return home,place a wet load in,remove the vent and run the load through. If the clothes dried any faster, the unit needed to be properly vented and not to vent it any higher than 4.5 ft. and no longer than 15 feet from the dryer.At first, my boss was furious for me not selling them new dryers but,once the folks I helped began sending more business,he shut his face.Most of the current house fires are from careless mistakes like this.Not only does the build up of lint cause the flames to sore but,the static electric charges that occur in the vent hose or blower assembly are also to blame.Furthermore, the strain of the motor and overheating can cause any new dryer to have a much shorter lifespan.I know at least a dozen folks who had to replace their new dryer within a 2 year lifespan.Some were expensive like the Neptune, Duet and Kenmore models.