Which is better mini split a/c, seer 19 for $ 590 installed or seer 42 for $ 1290 installed?

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I would go for the carrier for the higher efficiency and lower BTU. If the bldg is not insulated or sealed well it wont be too big on hot sunny days if it is in direct sun which should be part of analysys

A window unit with an outside vent open tries to pull in some fresh air. on a closed bldg this may cause pressure imbalance and need for make-up air.
 
BlueOvalFitter said:
I worked as a pipe fitter/welder/teacher in the Industrial/Commercial HVAC field for 25 years. Our company installed Carrier and TRANE AHU's, chillers, VAV's, fan coil units, etc., exclusively. Our service dept. installed Carrier split systems exclusively. Carrier makes a great product. As does TRANE.
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I know quite a few HVAC techs that make a hard distinction between Trane residential and Trane commercial - most say Trane residential lags way behind their commercial offerings.

Most also say the install is the most important part - not the manufacturer.
 
The midea inverter is the mission plus series.
Model: indoor unit: Msabb-12crdn1-mp0w
Outdoor unit: MOBA30-12CFN1-MP0W

I wonder how low it throttles down to, dont see that info in the brochure.

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Cheers

Jorge
 
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Actually the outdoor unit is MOBA30-11CFN1-MQ0W
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It looks like it throttles down to 4700 BTU.

Ahri certificate
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Cheers

Jorge
 
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PWMDMD said:
I know quite a few HVAC techs that make a hard distinction between Trane residential and Trane commercial - most say Trane residential lags way behind their commercial offerings.

Most also say the install is the most important part - not the manufacturer.
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In "SOME" cases, yes. I still would recommend the Carrier system with a qualified installer.
 
BlueOvalFitter said:
In "SOME" cases, yes. I still would recommend the Carrier system with a qualified installer.
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Then again...almost all agree that most residential units from just about every manufacturer are garbage these days and no one can agree on who is good and who sucks. It's kind of like trying to have a debate on the best pickup truck - Ford, Ram, Toyota, etc. Some love Carrier and some absolutely hate Carrier. Some love Rheem and some absolutely hate them. Some claim they've replaced 42 Trane coils just this summer and others claim they've never had to replace a single one.
 
PWMDMD said:
Then again...almost all agree that most residential units from just about every manufacturer are garbage these days and no one can agree on who is good and who sucks. It's kind of like trying to have a debate on the best pickup truck - Ford, Ram, Toyota, etc. Some love Carrier and some absolutely hate Carrier. Some love Rheem and some absolutely hate them. Some claim they've replaced 42 Trane coils just this summer and others claim they've never had to replace a single one.
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DELETED! :rolleyes:
 
somerandomguy1 said:
I am in nicargua and the mitsubishi is not sold here.

Prices include installation wiring piping and equipment.

Cheers

Jorge
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I was wondering why/how it was so cheap. In the US, HVAC and these systems are often sold by pocket picking hvac thieves.

Id be interested in which have better parts support especially in your area. My family has a bunch of mini splits installed in their home in the Caribbean. The Mitsubishi units have by far been the best. They did get some off brand ones, but the coils were thinner and no pets, they failed in a short number of years.
 
Consider possible heat gain through windows (especially uncoated single pane) and uninsulated roof. Even at that it seems that more than the smallest units at 5k or 6k max would be overkill for that one room. The inverter will turn down to very little most of the time. The ability to stay running at low power is important for humidity reduction. The minimum BTU should also be on the spec sheet.
 
I would go with the cheaper unit, there are diminishing returns with higher SEER ratings, especially on such a small room. The sweet spot for price/performance around here is 16 SEER and most of the new houses have that (and there's a lot of new houses here in the Austin suburbs). You can spend more money and get a higher SEER and multi-stage systems and so forth but you're not likely to make your upfront money back on lower energy costs.
 
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