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Mitsubishi Mr Cool Mini Splits
:024:New to Florida & Mini Splits. Are these Mitsubishi Mr Cool Mini Splits energy hogs or are they pretty efficient and electrical bill friendly ? We want to close up the Lanai and set Mr Cools thermostat & forget it.. unless it is going to double our electric bill :swear:.
Any experience comments welcome. |
When we had our Mitsubishi mini split installed several years ago, our electric bill did not noticeably change. We leave our lanai sliders open most of the time. The mini split took some of the load off the main A/C, so it did not have to run as much. Now all areas of the house are more comfortable.
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The idea is, the air is cooled near where you need it, making them pretty efficient. Hopefully, as someone else stated, taking a bit of the load off of the main unit. Usage will increase, but our experience has been, not much. One important thing, it is my understanding that as a general rule these houses have little or no insulation above the lanai. Your installer will probably tell you this and offer to add it for additional money. I believe we paid $300. Also, while I am thinking about it, we had a realtor tell us you needed glass windows to get a permit. I don’t think that is correct.
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This was a resale home. All glass sliders & mini split already in place.
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Thank you for your reply. :mademyday:
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:gc:
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In any event in answer to your question regarding Mr Cool and forgetting it, I would say no. There are many considerations, but all should consider the following: How often do you use the Lanai? Dues the Lanai have overhead fans? The Mini Split is extremely efficient in cooling and heating if sized correctly, No reason to keep on continuing run unless used all day and then only when needed. |
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The mini split is an heat pump which is very energy efficient. Adding a mini split to our enclosed lanai actually dropped the price of our electric bill compared to having our main hvac system try to heat and cool our lanai.
Also, throw away the cheap remote that you control the mini split and get a real thermostat that you can program, like the newer ecobee or nest thermostats used in your home. They cost $100 on sale and I put mine in the 1st day I got the mini installed |
Close up (as in close the exterior sliding doors).
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One of the biggest advantage of mini-splits, is the remote control. They provide nearly instant heat or air conditioning. There's generally no reason to keep them running or constantly managed ... they're not designed for that purpose, they are "on demand HVAC". In my experience, the useful life when used "on demand" is likely to be 10-12 years. Constantly managed/used, more like 6-8 years. |
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Before we moved down here, we lived in Norfolk 700' from the Chesapeake Bay. We had a totally glass (even the roof) four-season addition built and it had a Mitsubishi mini-split. As others have mentioned, we kept the sliding glass door open all the time. THEN, our main A/C went out one really hot day and the service couldn't come until the next day. We put a fan blowing out of the addition into the house; another one to blow down the hall; and a third to blow into our bedroom. Closed all other doors and were comfortable enough to get by until the main was repaired. Bottom line: having that separate backup came in real handy.
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After the lanai, usually the most strategic place to install a minisplit is the master bedroom.
While you sleep, set it to 68 degs and leave the rest of the house at 74 at night. |
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