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by • March 2, 2015 • UncategorizedComments (3)10817

Whirlpool’s new Dryer that has NO EXHAUST VENT!

Whirlpool just started shipping their new HybridCare™ Duet Dryer with Heat Pump Technology ( WED99HEDW )

Whirlpool Duet Heat Pump Dryer.  I'm so excited to install one of these!

Whirlpool Duet Heat Pump Dryer. I’m so excited to install one of these!

This is a REALLY Big deal for High Performance Homes in America.  I’ve heard about European models that were ventless, but to have a major US brand come out with one is fantastic!

I see 4 Benefits for a machine like this:

  1. Efficiency!  This new Whirlpool Duet Dryer uses a heat pump to dry the clothes and they claim it’s going to use 73% less energy than a standard electric dryer.  Even if it saves 50% on electricity that’s a big deal.  Especially as I move to more net zero houses where we are basing Solar Power Generation on the expected loads of the house.
  2. Ventless!  In my book this is as important as the electricity efficiency.  A standard dryer when running is pushing 120-150 CFM of air (air that you paid to condition) out of the house.  Anytime we blow air out, we are negatively pressurizing the house so air is going to leak back in at that same rate.  That means that when we run our dyer exhaust we are sucking back into our houses unconditioned air (and any mold/pollen/allergens) through leaks in our envelope.  Not good.  A ventless dryer is a very good step towards better Indoor Air Quality.
  3. Lower Dryer Temps.  This Heat Pump dryer is going to dry clothes at a lower temperature which is easier on your clothes, and should make your laundry feel softer.  It’s also easier on your fabrics.
  4. Maintenance.  I’ve seen many dryer vents over the years that were seriously clogged with lint because they snaked all over the house to get to an outside wall.  This non-venting dryer will eliminate the maintenance of lint in piping and is one less penetration that needs sealed on the house’s envelope.

Visit the Whirlpool website for more info.  I’ll be looking for my next high performance house to use this new dryer, so look for a post-install review later this year.

Best,

Matt Risinger

Risinger Homes in Austin, TX

Visit my Blog at www.MattRisinger.com

Risinger Homes is a custom builder and whole house remodeling contractor that specializes in Architect driven and fine craftsmanship work. We utilize an in-house carpentry staff and the latest building science research to build dramatically more efficient, healthy and durable homes.

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and it’s condensing the water out of the air stream so it will have a hose that plugs into our Washer drain.

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  • rj

    Clearly an interesting machine that apparently is the first condensing dryer with the larger capacity and similar drying times as found in typical American dryers. After further review, it seems some users are enthusiastic while others are slightly put off by the noise of the appliance, liken by some as similar to a hair dryer running. Closed laundry rooms versus closet or otherwise open installations might be suggested.

    While the reduced lint pipe maintenance is commendable, the manufacturer notes three lint screens that must be cleaned including one in the back of the unit that should be inspected on a monthly basis. The dryer condenses water into a pan and then pumps it out to a drain much like a typical washer. Accurate leveling is required to avoid overfills. Most of the earlier refrigerant based dryer use a non standard gas which one hopes does not need maintenance in the short run. Another interesting finding is Whirlpool includes a 1300 watt supplemental resistance heater for use when faster drying is desired. One laundry appliance website suggested that bulky items were dried to only 75% when 98-100% is common in today’s traditional dryers.

    It seems an intermediate step in dryer design might have incorporated an outside air duct in addition to the exhaust duct combined with an effective three level lint filtering like the Whirlpool condensing dryer provides.

    Heat pump water heaters and condensiung dryers are on their way. Let’s hope that noise and cost issues are mitigated allowing the next generation appliances to become as mainstream and acceptable as our refrigerators are today.

    • RJ, Excellent analysis. Agreed that just like HP Water Heaters there will hopefully be a proliferation of this among dryer manufacturers! Always appreciate your comments. Matt

  • kd7iwp

    I bought this dryer and it works well, but I have noticed that it raises the humidity in my laundry room significantly. It feels like a rain forest when I walk into the room. I even get condensation buildup on the window. My regular vented dryer before never did this. I bought this model since I am renovating and didn’t want to install a dryer vent to my basement but now I’m considering installing a bathroom fan in there anyway since I do NOT want it warming up my basement and filling it with humidity. That said, my old dryer (which was only 3 years old) pulled 5kW while running and this new one only pulls about 1.5.