I was wondering if anyone has any ideas about reclaiming the cold air that falls to the lower level of a bi-level house. In summer my house is at least 10-15 degrees cooler in the lower level than in the upper. Is there an economical way to reclaim that cold air? Thanks Ed S.

In that you want to "reclaim" is a way to recirculate it to other parts of the house to cool them off - then - recirculation fans could be installed to help move that air around. Other ideas could be to look at using your furnace fan - if you have one - to help move that air around. This is a standard issue - a good one to have - ceiling fans are also an option.

TG

Thank you for responding. I have ceiling fans in every room in the house. I've tried the furnace fan recirculating idea but it did not seem to work well. I wanted to do something without having one or more fans sitting in the downstairs floor space. I was thinking maybe something (a devise) that could "sense" the accumulated cold air and then respond by "sucking" up that air and returning it upstairs. All without using more energy than it saves. I think I must be dreaming. Thanks anyway. ELS

I might suggest that you call a qualified hvac contractor that has experience with evaluating duct systems. You may be able to zone your home to prevent overcooling of the lower level during a/c season and also prevent overheating the upper level during the heating season.
Just be aware that comfort and economy may be achieved only if your existing system is properly sized, (too big is not a good thing) properly installed and maintained. Best to you and good luck.

Thanks