DIY "INDIRECT" Evap Air Cooler! (No Humidity!) 2 Projects 1 unit! tons of info! + AC Air Cooler Comp

the cooling master is back, right before summer! I love your videos, thank you very much 🙂

Im always quick to click when I see a new video drop from you 😉

Great Video, great ideas :) One way to make use of the humid air if you're going indirect would be to let it blow on patio doors. Seems like most of the houses out here in the southwest have sliding doors, major area of heat loss in winter and doubtless the inverse in the summer. Blowing the cold, humid air across the glass should result in a bit of thermocycling that will have a similar effect to a cold day without introducing any extra humidity inside. Bonus, if you have a patio, it will probably be more comfortable in that area outside. My idea is a really weak takeoff of one I had about running swamp cooled air between the outer house wall and panels set out that connected to the eaves, with the winds here it would be an engineering feat (concrete base along house, heavy anchors, etc) to keep any panel material from blowing away so I scrapped it.

Hey brother, you've done a kick ass job on this stuff. I've followed you on and off throughout the years and you're always advancing - great job, and thanks for sharing.

I like your projects : your always very detail oriented and helpful with viewer questions regarding your projects.

Good job and clever use of parts! I was going to make a whole house indirect cooler by using a swamp cooler to exhaust into the attic space. The gable vent fan was a Buick 12 volt radiator fan that ran from solar panels with no controls. The fan started when enough sun hit the panels and it quit when the sun went down with no thermostat, voltage regulation, no batteries, etc. That ran for 5 years unattended. The attic would be 110F to 123F on summer days. The project stopped after I had a rigid urethane foam roof sprayed on over existing 3 leaf composition shingles. The foam is about 1-3/4 to 2 inches thick with tab mineral granules mixed in the top coat. Even on very hot days the attic temperature holds in the high 80's. I also had a 120 vac gable fan with 95 degree thermostat that used to run for hours after the solar fan cut off. The foam roof insulates so well that the AC powered gable fan never goes on any more. I removed the Buick fan and solar panels when they sprayed the roof in 2019. For the first time in 30+ years that I lived here in this house, its finally cool in the summer and warm in the winter. The open beam ceilings over 1/3 of the house had zero insulation. The foam roof cut my heating bill down by an average of 44%. Nice considering energy costs have more than doubled here...39 cents a kilowatt hour now for electric, $2.40 per Therm for natural gas. You can walk all over the foam roof without damaging it. Its rigid! I use the old swamp cooler running on low with a total of 405 watts (pump and fan) if needed, typically 2 hours after sunset when the house starts getting warm. . The temperature/humidity cooling chart is taped inside the cabinet door so I know what cooling will be expected. The swamp cooler runs from 120 vac power that comes from a home built 7200 watt hour solar generator which also powers an isolated kitchen circuit. It's nice to run the cooler, microwave, air fryer, Instapot, and coffee maker off of yesterday's sunlight. Shaving energy here and there has become my passion. I went from 30-36 kilowatt hours a day to 12-15 kilowatt hours per day usage. The writing is on the wall and I expect the utility to charge $1 or more a kilowatt hour soon enough. I appreciate your projects!

Best video of a great DIY project I've ever seen on YouTube !! And it actually works.

I got a Hessair evap cooler last summer in a pinch to get my family cooled off, I love your DIY engineering and really appreciate all of the knowledge you share, im going to build this in a few days, thank you!

Your videos are always a treat!

in the 2000s i working in a taiwan factory, we had huge aircons, it was like 3 ton size and was so noisy, well i found out it was water type that cooled us, it had been cycling water to the rooftop with pumps, on the roof the was an apparatus which had the water sprinkling in the air, like a small fountain which drop two layers to a bottom reservoir, which went back to the aircon by gravity, the pump was only used to pump the water up the rooftop sprinkler, i guess the water released heat that way and returned down by gravity.

I'm digging the pvc water chiller frame.

This just amazing! I always wanted to build an effective air cooler without the use of ice or cold water. Your solution is the answer!

Yeah,glad you're back,nice video!

really appreciate your hard work

good to see you are still inventing

Such a great idea. I may build one soon, thanks.

These are all amazing and I will be pursuing a similar design

Now I have a "cool" project to build for my solar panels. This looks like a ton of fun. !:- )

I just found your channel and subscribed. You're projects are amazing!

Love it! Thumbs up video Brother ~John