Works great in a workshop - it's nice and quiet. Next best thing to having central A/C. Vapor line was a little hard to bend, but the smaller liquid line was soft and easy to bend - just make sure to make smooth flowing bends. No hard turns. I think the instructions are a little sketchy to scare people into having unit professionally installed, which is best for those don't know what to do, but good enough for experienced DIY'ers to self install - if you have the gauges and vacuum pump. Unit gets cold immediately - you can hear the refrigerant start boiling in the evaporator just before the fan goes on - so it starts blowing out cold air. The inside unit is whisper quiet. Even the outside condenser is quiet - you have to be right next to it to hear the compressor running, and see the fan blades spinning. You can feel the heat coming out, in cooling mode. But wait - there's more - it is a heat pump that gives off heat in the winter, so it's a handy auxiliary heat source.

I've had this in my shop for about 3 months now. I have a 800sqft outbuilding that was previously heated and cooled with space heaters and a portable ac. I went ahead with the 18k btu knowing it would be overkill but with not knowing exactly how well the building is insulated I figured it was worth the risk. My husband and I were able to install it in a days time with the help of some HVAC tech friends tools. The ac actually blows so cold so well that I have to keep it set around 78 otherwise I have to dress for winter in the summer time. I have only had to turn the heat on once so far and it worked very well. I had to set it much lower at 70 and the next morning it was 77. I don't think that the temperature differences are because of the unit itself, because the temperature does stay consistent rather with where we had to install it due to lack of availability of space. Since installing it my electric bill has finally gone down because it's not constantly running. Half of the time I don't even realize it is running because it's not loud at all compared to the portable I used to run. I am actually considering buying another for my master so I don't have to heat the whole house in the winter and can just use my fireplace and it as heat source.

Heat index has been over 100°F is my area, cools better than my old 3 ton Goodman traditional a/c unit. I did install two of these in my home. Will update review during winter to give a heat update. So far working great for the first summer!

Best deal in town. Goodbye electric heaters and window air conditioners! For about $600, it's efficient and quiet. It is also very convenient to install. The instructions I got didn't help, but youtube university did. The only confusing part is the communication lines. Four mismatched colors, and no instructions on where they went. The installation video on Chairliving.com shows how to do it. Black-L1 white-L2 Red-S Green/Yellow-Ground I chose this one because it has the latest freon-R32 which has a 20 seer rating and is great for the price. Shipping was very fast. The first box arrived within 2 days. The other came 2 days later because it was Sunday, otherwise it would have taken 3 days in total. It only took about 4 hours to install it myself. Grab a vacuum pump from autozone,s loaner tools. I already have an adapter and just need to buy a small bottle of nylog blue to make sure everything seals properly. I did put a male plug on the end of the cord and plug it into where the A/C is. I may rewire it later. You can do the same if you want to keep things simple.

This mini split air conditioner is a game-changer! It's perfect for small spaces like my home office, and the quiet operation means I can focus without any distractions. The air purifying filter is a great bonus, and I've noticed a significant improvement in my indoor air quality since using this unit. Highly recommend for anyone in need of a cooling and purifying solution!"