![]() I cannot argue that most mini splits, regardless of brand, are made outside of North America. There's a reason that all the name brand HVAC companies are moving to the same inverter technology for their higher end systems that first surfaced in the mini split world and that's efficiency leadership. That said, my previous shop was insulated before the unit went in. That's why I'm going to do it again with the new shop building, although it will be a slightly larger unit since the shop will also be bigger. Let's just say that when I put the minisplit in my old shop in 2018 and left it running pretty much year-round from then until we moved in 2021, the electric bill barely reflected it. I'm also attracted to the idea of purchasing something used and there seems to be quite a few of the central systems available cheap. #Minispillage location plus#I consider it a plus to have something made in the US. What makes the mini-split perform better with these functions? I've also learned that most if not all mini-split systems are made outside the US while traditional central systems are made in the US. ![]() It seems to me both systems both have fans to move air and both have a compressor for the AC/heat pump. I'm not saying they don't, I just don't know. That said, insulation is your friend so be sure to consider that.Efficiency and the noise factor are both important considerations but I would have to be convinced that the mini-split systems offer that advantage. #Minispillage location install#And you can also easily install your own with a DIY system such as from Mr Cool that doesn't even require doing the vacuum dance on the lines. Even if you do shut it off, it gets to temp pretty quickly, in my experience. If the cost were the same, the MiniSpilt is a huge winner when it comes to efficiency and cost to operate.so efficient, there's almost no reason to turn it off when you're not in the shop so "warm up" or "cool down" time is almost nil. And yes, before it's mentioned, I need to address the lack of insulation. Most of the time it's quite comfortable in the shop with our southwest climate. I would only use the system for heating and cooling a few weeks out of the year. I'm not too concerned about the not so ideal efficiency of a used system. 2) better air filtration 3) used systems are readily available at a fraction of the cost. The advantages that I can see with this setup as opposed to a mini-split is 1) a propane furnace could be used instead of the heat pump, which will probably heat up the space faster. The compressor unit would be immediately outside along the same exterior wall. The intake could be provided with necessary filters with little ductwork and exhaust into the open space of the shop, again with little ductwork. Then I thought why not place the central air handler on the portion of a recently constructed mezzanine where the the slope of the roof makes the area almost useless. I was surprised to learn that the latter without ductwork would be about the same and possibly a little cheaper. While obtaining a rough cost on a mini-split installation for my shop I asked a couple of local contractors what a similar capacity central HVAC system would cost. ![]()
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