Portable A/C

Where does the water go?

dsurette wrote:
One downfall of the single hose portable ACs is that the air being exhausted has to come into the room somehow or the AC will be very inefficient. Dual hose ACs are a better option for a portable unit.

No, that's not how they work. The air being exhausted goes out the single hose. I would think they would be more inefficient if the hot exhaust air went into the room. That's not to say that a dual hose unit would not be more efficient. Since we don't have a washer/dryer and do have an exhaust for one, that would be a good place to run the exhaust hose to.

Big Katuna wrote:

dsurette wrote:
One downfall of the single hose portable ACs is that the air being exhausted has to come into the room somehow or the AC will be very inefficient. Dual hose ACs are a better option for a portable unit.

My son uses one in his tent camper. Freezes them out. In Florida. In the summer.

The single hose is the hot air exhaust. The dual hose allows you to mix outside air in which I don't see as an advantage. Mixing in 95 degree air into 70 degree room will result in warmer air. Roof acs don't bring in fresh air. Some window units have a little 1" flap you can open that pulls in a little fresh air.

if air is exhausted from the single hose, it must also enter someplace. that place will be leaks around windows etc. if there is no additional air intake via the second hose. roof acs do bring in fresh air into their air exchange plenum and exhaust to the outside. the inside air circulates past the cold heat exchanger.
bumpy

dsurette wrote:
One downfall of the single hose portable ACs is that the air being exhausted has to come into the room somehow or the AC will be very inefficient. Dual hose ACs are a better option for a portable unit.

My son uses one in his tent camper. Freezes them out. In Florida. In the summer.

The single hose is the hot air exhaust. The dual hose allows you to mix outside air in which I don't see as an advantage. Mixing in 95 degree air into 70 degree room will result in warmer air. Roof acs don't bring in fresh air. Some window units have a little 1" flap you can open that pulls in a little fresh air.

One downfall of the single hose portable ACs is that the air being exhausted has to come into the room somehow or the AC will be very inefficient. Dual hose ACs are a better option for a portable unit.

Never used one but read reviews that stated that portable ACs are slightly better than a fan.
Good luck / Skip

I'm testing two units in the manse to see how they do. I could see using one in my TT but floor space would be an issue.

We purchased a freestanding AC for our TT when the roof unit died. Used it the past couple years. Keeps all rooms cool as long as doors to bedroom is open.

2oldman wrote:
I'm sure you could go to the nearest trailer park and see some hanging out the window propped up with sawhorses and sealed with duct tape.

He isn't asking about a window unit. He is asking about the portable type that freestand on the floor. Has a hose to exhaust the hot air.

I'm sure you could go to the nearest trailer park and see some hanging out the window propped up with sawhorses and sealed with duct tape.