New Heat Pump Dryer Coming to USA
Last Post 04 Sep 2018 05:28 PM by newbostonconst. 55 Replies.
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whirnotUser is Offline
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08 May 2015 04:20 PM
But because that heat is recycled only a fraction of additional heat is added. You tend to want to argue that, in theory, this will make the house too warm but the Owners of these units are saying it just isn't the case.
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08 May 2015 06:58 PM
Posted By whirnot on 08 May 2015 04:20 PM
But because that heat is recycled only a fraction of additional heat is added. You tend to want to argue that, in theory, this will make the house too warm but the Owners of these units are saying it just isn't the case.

The room where the heat pump dryer is in will actually be COOLER because of the heat pump running. It reduces ambient room temperature by a few degrees when operating. A nice touch in the summer but in the winter the room might be 2 degrees cooler when running. Not a big deal but worth noting.

Still a much better energy efficient option than a standard dryer that pulls 200cfm of conditioned air out of the home every 45 minutes and throws it outside via the vent, quite wastefully. Plus there is no "makeup" air in most homes so it creates a negative pressure in the home and this draws in more air leaks.


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11 Jun 2015 09:52 PM
Lbear, you are basing that on the theory behind Heat pump water heaters. Here is the real skinny, there is a slight amount of heat produced by the dryer, due to the dryer cabinet itself being metal. It is less than a conventional dryer as it uses lower heat temps. Other than that there is no discernible difference. There is a slight amount of humidity being produced, noticeable in Central Oregon due to our single digit humidity right now. Not a drastic amount. Other than that it just works wonderfully, and I can say this because I have one running in the next room.
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01 Sep 2015 04:37 PM
Posted By whirnot on 11 Jun 2015 09:52 PM
Lbear, you are basing that on the theory behind Heat pump water heaters. Here is the real skinny, there is a slight amount of heat produced by the dryer, due to the dryer cabinet itself being metal. It is less than a conventional dryer as it uses lower heat temps. Other than that there is no discernible difference. There is a slight amount of humidity being produced, noticeable in Central Oregon due to our single digit humidity right now. Not a drastic amount. Other than that it just works wonderfully, and I can say this because I have one running in the next room.


Thanks for the vote of confidence on this device! My Kenmore HE5 is dying and I think I'm going to buy the LG set including the heat pump dryer to replace it. Does anyone know how MUCH air the LG expels vs a regular dryer? It is blowing out just a small amount of air? This is significant as part of the extra electric cost of a conventional dryer is the amount of conditioned air blown out along with the waste moisture and the cost then for the heat pump and whole home humidifier to make up that air volume.
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17 Sep 2015 10:33 AM
The LG has a large number of different modes, including operating as a normal electric dryer. In that mode, it expels just as much air as a regular dryer. It surely expels much less air when operated in a mode that mainly heat pump mode, and presumably an intermediate amount in the intermediate modes. For choosing betwen the LG and the Whirlpool, the fact that the LG expels some air in heat pump mode might be good or neutral during cooling season. But the Whirlpool would be better during heating season.
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18 Sep 2015 04:08 PM
Folks here are talking about the Whirlpool as Ventless and the LG as being vented. I found a ventless LG model:

http://www.homedepot.com/p/LG-Electronics-4-2-cu-ft-Electric-Ventless-Dryer-in-White-DLEC855W/202336986?MERCH=REC-_-PIPHorizontal1_rr-_-205786762-_-202336986-_-N

Reviews look good and price is much lower (1/2) than the Whirlpool but it is smaller.

Either way agree with all here that a ventless dryer would be much better.
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18 Sep 2015 05:24 PM
The ventless LG model is not a heat pump dryer--it's just a regular old fashioned energy hog condensing dryer. It uses more energy than a basic vented electric dryer, not less.
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20 Sep 2015 04:53 PM
My bad. Thanks!
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24 Sep 2015 05:08 PM
LG does make a heat pump dryer too though.
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05 Nov 2015 01:01 PM
So I'm running the hybrid care now. It produces heat although I'm not even sure which mode we used.   I see the heat as a good thing for an unheated 2nd story of our home in Vermont.

Maybe it would pair really well with a heat pump hot water heater that needs some heat (probably needs more than the dryer creates though).

We'll see how this thing works. If it holds up, it seems like a no brainer.
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17 Nov 2015 11:32 PM
A quick update, after 5 months, the Whirlpool Hybrid care is working great. We notice no discernible moisture being emitted. She loves it.
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28 Nov 2015 12:23 PM
I just got the LG heat pump dryer about 2 weeks ago (found it for over $500 off retail, paid just over $1lk for it) I love it! Super quiet, decent dry times and the heat pump is super quiet. I can tell it is running but overall it is quieter than my previous Kenmore HE5. Very impressed with this dryer.. While it still is venting some air it seems to vent less (which makes sense as much of the moisture is going down the drain instead of into the neighborhood) Would definitely buy again!
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28 Nov 2015 05:28 PM
Is it true that it takes 2 hours to dry if you use heat pump only mode (no inefficient resistance heat)?
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30 Aug 2018 12:55 PM
That would be okay if they intake the model.
newbostonconstUser is Offline
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31 Aug 2018 05:28 PM
There is another option. These wash and dry and are ventless. They use a small amount of cold water to condense the water during the dry cycle. We have the second one listed and love it. Uses very little energy because it doesn't have to run a compressor to condense the liquid. Very smart of them.

https://www.lg.com/us/washer-dryer-combos/lg-WM3488HS-front-load-washer

https://www.lg.com/us/washer-dryer-combos/lg-WM3997HWA-washer-dryer-combo
"Never argue with an idiot. They will only bring you down to their level and beat you with experience." George Carlins
newbostonconstUser is Offline
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04 Sep 2018 05:28 PM
I went back to look at the new unit they had listed and it is a Heat Pump Washer/Dryer. Very cool.

https://www.lg.com/us/support/products/documents/LUWM101HWA%20Spec%20Sheet%204.pdf

https://www.lg.com/us/washer-dryer-combos/lg-LUWM101HWA-washer-dryer-combo-lgsignature
"Never argue with an idiot. They will only bring you down to their level and beat you with experience." George Carlins
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