Air exchanger

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Feeder Fish
MFK Member
Jul 12, 2005
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Indy
I spent this last weekend installing the air exchanger that I bought from Jehmco.

Most fish rooms are hot and humid but this will make mine very comfortable.

I learned a few things durring the install.

When I read the instructions it says not to use plastic flexable ducting because it will restrict the air flow. It also says to use metal flex duct from the unit to the solid duct to eliminate noise and it really makes a difference.

I was concerned about the inlet duct transfering heat and cold into the room on the way to the heat exchanger so I had an idea ..... I would insulate the duct but when I went looking I didn't find any.

Sooooo I had an Idea. The air exchanger uses 6" ducting so I bought 8" insulated flexable duct and put the metal duct into the flexable insulated duct.... worked great and it should keep the inlet duct from sweating.

I used rolls of metal straping to hang the ducts and remember to use fender washers on the mounting screws and you should use aluminum tape to seal all of the seams and to protect the insulation from the straps.

I would recomend using a 1" wood bit to drill through the inside and outside wall and then use a sawsall to cut your hole for the inlet and outlet ducts.

I like this product to fill in any extra space between the duct and the hole you cut and to seal them to the inside and outside walls. You should trim the extra off after 24hours..... or so the wife says....LOL

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WOW! nice work Steve:)

does it make a big difference?
 
merc123;859916; said:
Please tell me this wasn't for an aquarium :)

It's to keep the air in my fish room smelling good and to let the dehumidifiers work a lot less.... they say it's 80% efficent so if I can save 50% on the electricity to run my dehumidifiers it should pay for itself in about 12 to 18 months..... plus it makes the fish room very comfortable.
 
JustLooking;859909; said:
Looks good,
just a question though,why didnt you use 6" flex to cover the 6" pipe?

The solid 6" duct won't fit inside the 6" flexable duct.
 
JustLooking;860108; said:
It does if you remove the inner spring sleeve.
Thats how we do it at work.:)

I was thinking that if I leave the inner sleeve in place and tape it closed around the steel duct that if it did sweat it wouldn't get the insulation wet and I wouldn't have any drips on my head.
 
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