|Forum topic by Kelby||posted 10-16-2012 05:47 AM||945 views||0 times favorited||4 replies|
10-16-2012 05:47 AM
Well, my Mitsubishi min-split heat pump has been installed in the garage, so I wanted to give a quick overview for people that might consider such a thing in the future.
My shop is a three-car garage. I live in So Cal, and my garage is as inefficient as it can be. No insulation in the walls, and I have a flat roof over the garage with no insulation either. A large single pane window, and plenty of leaks around the shop. The shop has a south-facing wall that gets sun most of the day, and a west-facing wall with garage doors to make sure the heat keeps hitting it as the sun sets. Beginning mid-day, the shop is usually 7-10 degrees hotter than the temperature outside, and even more after about 6 in the evening.
I got several quotes for a mini-split system, and I’m glad I did. The first two contractors wanted about $6500 to install a lesser-brand 18,000 btu mini-split a/c (no heat pump). The third contractor wanted $5500 for the Mitsubishi 24,000 btu heat pump. He did a very nice job installing it.
I can’t believe how fast this thing cools down the garage. Today was 85 degrees outside, which usually means temps of over 90 degrees in the shop. This evening I turned on the A/C, and the temp in the shop dropped 10 degrees within 15 minutes. It gets as cold as I could want it. I have to turn it off after a while or the shop turns into a fridge.
Obviously, this is October. I suspect it may have to work a little harder in the middle of the summer when temps get up in the 90s and occasionally over 100. But I am a very happy camper. I even find myself wanting to stay in the shop longer because when I work out there, I get hotter than I normally am, and I’m reluctant to come back in the house now that it is warmer in the house than in the shop.