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GaryGary · 12-07-12, 09:56 PM

Hi,
Very interesting stuff on recovering dryer heat -- pumping all that heat outdoors just seems like such a waste.

I just added a set of DIY plans for an HRV made from Coroplast. Maybe there is a way to adapt this for use as a heat exchanger for dryer heat recovery?
DIY Heat Recovery Ventilator (HRV) Plans

I think the Coroplast should hold up to the moisture -- not sure if the dryer exhaust temp is too high, but probably OK. A good lint filter would be needed upstream of the HX.

Another thought would be to supply the dryer air from a free warm source. I've been working on a sort of sunspace the last few days, and the inside air temperature gets as high as 120F when the sunspace is not ventilated -- an attic might be another source in some climates.

For those who have not seen it already, Randy did this for his dryer.
Converting a Clothes Dryer to Use Solar Heated Attic Air For Drying

Gary

12-07-12, 09:56 PM	#41
GaryGary Apprentice EcoRenovator Join Date: Nov 2008 Location: SW Montana Posts: 139 Thanks: 1 Thanked 21 Times in 15 Posts	Hi, Very interesting stuff on recovering dryer heat -- pumping all that heat outdoors just seems like such a waste. I just added a set of DIY plans for an HRV made from Coroplast. Maybe there is a way to adapt this for use as a heat exchanger for dryer heat recovery? DIY Heat Recovery Ventilator (HRV) Plans I think the Coroplast should hold up to the moisture -- not sure if the dryer exhaust temp is too high, but probably OK. A good lint filter would be needed upstream of the HX. Another thought would be to supply the dryer air from a free warm source. I've been working on a sort of sunspace the last few days, and the inside air temperature gets as high as 120F when the sunspace is not ventilated -- an attic might be another source in some climates. For those who have not seen it already, Randy did this for his dryer. Converting a Clothes Dryer to Use Solar Heated Attic Air For Drying Gary