12v Aircon

[Gavin and Bigi]

Can somebody recommend a 12v Aircon for a 6m campervan. A rooftop one I guess.

 

[Teithwr]

Just got a Zero Breeze 3 with two batteries, What's the best positioning for these, I was going to put the exhaust pipe through the driver's window and put the unit between the seats.

The set up shows it installed with an input pipe and an exhaust pipe both to the outside (plus s adrain pipe). I've always used domestic aircon units with just an exhaust pipe. Surely this would be bringing in outside air which is likely to be hotter than internal air once the unit has been running a while?

 

[Guigsy]

Just got a Zero Breeze 3 with two batteries, What's the best positioning for these, I was going to put the exhaust pipe through the driver's window and put the unit between the seats.

The set up shows it installed with an input pipe and an exhaust pipe both to the outside (plus s adrain pipe). I've always used domestic aircon units with just an exhaust pipe. Surely this would be bringing in outside air which is likely to be hotter than internal air once the unit has been running a while?

Efficient domestic have an input and an output for the heat exchanger side that just cycles outside air. The inside air is kept separate. If you just have an exhaust, then the unit must be pulling air into the room (or you'd have a vacuum). Presumably the outside air is hotter than the air already in the room. So it makes more sense to chill that air inside. Not needing to chill outside air is worth quite a chunk of efficiency.

I have no idea if the Zero Breeze has separate inputs for the heat exchanger and the chiller sides? Most portable units that are far bigger than the Zero Breeze don't manage it.