Wow, by far the best tip I've seen so far for making your own window seal, probably better than close cloth versions and this one can be attached to the mosquito wire screen.. Thanks for the idea!

I never thought of that. I’ll give it a go today

Thanks so much for this video. I used your technique to make a seal for a much smaller window and it worked perfectly. Thanks for taking the time to make this.

Thanks for posting this! It's exactly what I need for this coming summer. :-)

This is a great solution. So much easier for us apartment dwellers to make than those things that require many different types of tools. Thanks for sharing!

Thank you so much... This is brilliant! You did a fantastic job. So much so that I just followed your directions and made one of these for a Newair AC-10100E. We just moved into a house, and the window screens are inside the window glass. This seal is perfect for that. It even allows for removing the seal and opening the window quickly when the air conditioner is not in use. The only thing I changed was that I used a thinner sheet of foam core and wrapped it in insulation on both sides for a slimmer profile. I also covered the edges of the hole with duct tape after adding the insulation, similar to how you wrapped it earlier in the video when you reinforced the edges around the polystyrene before applying the insulation. So basically, I did it twice to complete the hole, making it durable enough that the hose can be removed intermittently when the seal is not in use. I also made sure that the foam core was wholly sealed from moisture. I then added a gasket along the edge in places that didn't have velcro. When installed, the hose is flush with the windscreen which automatically protects the open end of the hose and prevents problems with pests. I live in Hawaii, and the sun is really intense here all year round and heats up homes in no time during the day. I'm using this in conjunction with the De'Longhi insulated hose cover, and the unit cools my office quickly. The hose cover is a MUST-HAVE for any portable air conditioner owner. It's night and day, in terms of the performance and efficiency of the unit. The hose cover prevents heat from escaping into the room from the exhaust hose. The De'Longhi one WORKS. The hose is barely warm to the touch even after using the unit for a few hours. My office is about 135 sq ft with a 20 ft sloped ceiling that heats up dramatically in the late afternoon sun. This seal is a headache saver. Thanks again.

Great simple idea

Just done this ahead of the 40c heatwave. Works great!

You did such a good job. Thank you for this great idea and video. I’m going to try it! I think it will work for me❤️

Best idea I've seen so far, thank you! I thought of a similar thing but with a wooden panel but indeed your materials would be much cheaper and would work just fine!

Went ahead and smashed that like button because you’re smart, crafty and helpful sir lol while I may not actually do this looking at a window seal you get off Amazon and then watching you carefully craft a well insulated homemade one that likely works 10x as good as 30 bucks on Amazon. Very cool!

Awesome. Thank you very much. Neat and effective.

You inspired me. Out of all the videos/possibilities i have watched, this is the setup i am going to. Price/isolation/weight combination is perfect. I might tweak it a bit. Thank you.👍

Worked like a charm. Thanks!

Making this today!! Best idea ever.

Good idea! Thanks.

Great! Thank you

GREAT STUFF

This solution has to be right there at the top. Smart thinking and thanks for sharing

Very well done. I want to cool my garage occasionally and want to do a scaled-up version of this for the service door. I would open the service door and place this in the frame so the hot air can vent outside.

Great idea thanks for sharing .!! 👍🏻

That is such a cool idea. I live in an apartment and the AC I pay good money for is wimpy, absolutely wimpy. You could run the AC all day in this apartment and spend so much money on it and still only get mediocre cooling. I put my portable AC in my bedroom and within 5 to 10 minutes my bedroom is crispy cool and enjoyable. The AC in this apartment complex is wimpy. I can hear the AC units running here all the time too and I know people are throwing money out of their windows here too. I will use my portable AC unit again and again and purchase a new one when the old one quits. How much faster my portable AC unit cools just puts the main AC to shame.

Well done Sir!

excellent.. will be doing this tomorrow

Been searching for this solution a long time, everything else would ‘t stay in window. Instead of Velcro I used gorilla heavy duty mounting tape, worked like a charm! 👍

Genius !!!

Thank you

Looks great. How does this hold up to rain? Wondering if you have wooden crank out windows if exposing them to the rain might lead to rot.

Hi. May I know how do you make sure that the exhaust hose stays in place?

We have rolladens that I pull down to clamp the exhaust down and make it dark. Could I skip the insulation foil?

I ended up using twin wall Polycarbonate sheet from b&q cut it to fit . Applied hook & eye tape to secure to the window frame. And when not in use I either pull of the frame to close the window or wrap some insect screen around the opening with a reusable cable tie to stop bugs coming in. Been working brilliantly in this heat. 😄

I just use my window screen for my insulation frame, all because I have the crank casement windows, that way I still have option to open and close it on a rainy day without removing the insulation i have a backup window ac in my bathroom that slides up and down, for a back up when it rain out to fill in for the portable ac.

This actually looks great. Is polystyrene essentially foam? I’m surprised it came out so sturdy.

I cant find that silver sheet to buy. What do i look for?

Nice job going to look into this. Dud you but the foil both sides?

the board I use 3 layer. 2 layer of thick plywood and polystyrene in the middle bacause polystyrene alone can broken crack easily

Isnt the insulation foil supposed to be on the other side? The tube produces hot air and the insulation will only keep that warmth in. Also it would protect against the sun if it was on the other side, right?

I attempted this. Fingers crossed it works!! Thanks so much for sharing! One question- did you remove the screen from your window? If so, how are you preventing bugs from coming in through the exhaust?

My window is on the second floor and does open into the room. how do i fasten it?

Why is the foil sheet pointing towards the room? Shouldn’t it be pointing outside? Awesome job btw! I’m gonna do this.

Wowww, grandiose Lösung, nur warum die Alu Seite nach Innen und nicht nach Aussen ?

Perfect! I have lots of reflectix left over to do this. I may use cardboard instead of styrofoam because I have lots of that. Unless a package is delivered that contains a styrofoam sheet of some kind - which could happen between now and when I'm ready to do this. Thanks!

How you attached this with your window??

Like the duck tale cut on the hole just like you would on a duct

Can you put this over the screen?

Where's the hole for your drain line?

Does it work?

Nice system but..................complete dark in the room ...............