anyone put the condenser from split air conditioner in hot attic during summer?

With hot weather around the corner I'm weighing options on best way to keep my room cool...

Here are details: 3br 2story house and the a/c unit is rather undersized - runs almost constant already and outside temps peaking about 85 degrees now. Summer can bring stretches of 95 degree days in my area. 2,000watt flower room (air cooled hoods intake & exhaust vented to attic) and about 800watt in veg room. I have fan pumping cooler downstairs air up to the two rooms and upstairs temps reaching about 85 degrees doing this.

I was thinking of buying split unit and putting the compressor in attic, but not sure how efficient it will be on hot days - attic temps will likely get to 130-140 degrees on hot sunny days. Anyone with experience doing this? Other option is dual hose a/c unit - probably would use attic for intake/exhaust on this too.

Window unit is NOT an option for me.

Just want to hear from anyone with similar situation and their experience.

Why don't you tone down the 2,000 watts?

I'll be "toning down" the veg wattage soon...

nobody ever put the heat exchanger side of split system in attic?

what about running intake & exhaust from dual hose a/c unit in attic? any noticeable drop off in efficiency when outside temps heat up in summer?

IDK about the split unit but i do know that in a dual hose it will cut the efficiecy way down , it uses that air to cool the condenser and 130* air aint gonna cool anything

just fabricate a metal duct to the window unit and duct it to your attic (you'd be ducting to the "condenser" side, moving the heat from the space to the attic)

a compressor in your attic will be loud, and die, due to overly hi pressures (turning the refrigerant to acid).

An even better idea is radiant barrier. I am about to get some myself as I am doing an attic grow. Radiant barrier keeps around 90% or more of the heat from entering the attic. It's basically foil, but with a higher percentage of aluminum (kitchen foil will not be nearly as effective as it is only around 20% aluminum). I don't know if you have read up on it, but it reflects the sun's radiant heat that is magnified by the shingles. Shingles will degrade quicker with radiant barrier as the heat is reflected back onto the shingles, but it's better than it being absorbed by your plants. I'm sure there are doubters, but my parents put it in their house in the mid 90s and their attic is always comfortable, no matter how warm it is outside. ebay has rolls that will cover 1000sq ft for @$100. You can find plenty of videos on it if you have any questions. Hope this helps, FH

no you cannot put it in the attic. put it outside in the shade.

conservation of energy-

you will need to release the heat that your refrigerant has sucked up. the colder the better.

one way would be to install attic fans(they are cheap, 60 bucks) to regulate the temps of your attic. this should be easy as most attic ventilators are ont he order of 1500 cfm.
it will also make your asphalt shingle roof last three times as long.

you could even just build a 5x45 "room" in the attic-

vent it, with the condenser inside. should be easy to do. just a plywood box.

Murfy said:

you could even just build a 5x45 "room" in the attic-

vent it, with the condenser inside. should be easy to do. just a plywood box.

Click to expand...

sweet suggestion...People often overlook the idead of making a space and cooling it then pulling you climate controlled air into your grow space. Very cost effective, concidering some of the options that have been suggested.

Make a dog house and hide it inside a dog house in a backyard shadow!!!!