"Vented dryers have a history of overdrying, which is where the majority of fabric damage occurs," Peebles said. Though consumers often complain that clothes coming out of ventless dryers lack the warm, toasty feel they're used to, that's actually good news for your fabrics. In our tests, we’ve found that condenser dryers typically ran 30-50☏ cooler than vented counterparts, depending on the cycle-that makes a really big difference. Since condenser dryers don't get as hot as vented models, they can also be more gentle on clothes. Simply set it up near a drain, sink, or even a bucket.Īside from not needing a vent, the most direct advantage to this system is that your furnace or air conditioner doesn't have to make up for any air that's vented outside. The evaporated water either goes down a drain pipe or collects in a tray that the user must empty after a cycle. Instead of venting that hot, wet air outside, the air is looped back into the condenser where it's cooled down-that's the second airflow loop.įrom there, the air that’s already inside the condenser is reheated and sent back into the drum to repeat the process until the clothes are dry. The heated air is then pushed into the drum, where it heats up the wet laundry and causes water to evaporate. The air passes through the condenser for initial heating. Peebles knows his stuff: Although Bosch's 24-inch ventless dryers are niche models in the U.S., Bosch is the laundry market leader in the rest of the world.Īs he explained it to us, the first airflow loop draws a small amount of ambient air into the dryer-much less than is needed in a conventional unit.
To learn more, we spoke with Mike Peebles, who has served as the technical services manager in laundry for Bosch parent company BSH Home Appliance Corporation in North America and Canada for the past 13 years. Instead, they use a dual loop airflow system that’s much more efficient. The majority of ventless dryers sold in the U.S., however, are condenser dryers, which don't exhaust air. The waste is even worse in summer, where your dryer has to heat up air that's been artificially cooled by your air conditioner.
In winter, that means your furnace has to work harder to make up for that air. Unless you live in a temperate climate, your vented dryer is likely taking in climate-controlled air from your home and pumping it outdoors. To call this process less than energy-efficient, would be an understatement. They pull room-temperature air in from your laundry room, heat it up, tumble your clothes in it, and then blow the exhaust-full of evaporated moisture-outside.
Vented dryers are basically hot air vacuums.
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