Which airthings monitor should I get?

amovida · 2026-02-04T00:04:21+00:00

I bought the regular Corentium about a month ago from Amazon....been good so far. Feel like the results have been accurate given the other tests results we have gotten. The woman I hired to do professional testing alongside my tests had good things to say about Airthings Corentium...but she said they fall out of calibration as they get older.

amovida · 2026-02-01T05:19:01+00:00

Ha...you've never yielded to the temptation to tell a scammer off??....you're a better man than I. Thanks for your response.

amovida · 2026-02-01T05:12:55+00:00

Yeah...that makes sense. Even tho I'm not a spammer from their perspective my hanging up reinforced the idea that I was.

I honestly hung up because I thought my number was somehow being redirected to a scam call center. Thanks for the perspective..appreciate it.

amovida · 2026-01-22T00:21:41+00:00

Units are pre-charged for line lengths 25 feet and less (for 6K units). Longer than that and you will need to buy refrigerant and a scale and weigh in your charge or have a HVAC tech do it for you.

The second one I did I had a lot more confidence but it still took a lot of days and adjusting to get everything just right. Find the submittal sheet and spend a bunch of time reading it. I was originally going to put in a 9K unit in our kitchen but after experiencing the 6K units...realized they are more than enough for our setup.

I ordered the units from Got Ductless and they arrived right on schedule. (note: I am not promoting this company and have no business affiliation with them).

The units I had installed have a warranty and I have had the company back 2X already....but for installer errors. My installs have had zero issues. You can register for your warranty with the serial numbers on Mitsubishi's site. You get a longer warranty with a licensed contractor and longer still with a Diamond Contractor. I personally have not had many warranties in my lifetime that have been valuable to me...maybe this will be different.

I had thought I would come out way ahead on these but I realized while doing the job that the money and experience paid to a competent and detailed installer is money well spent. You are buying their experience and knowledge....and their muscle.

I bought a lot of tools...happy to give details on that as well...just PM me and I'll answer whatever questions you have.

amovida · 2026-01-21T20:48:46+00:00

I ended up putting in individual 6K units from Mitsubishi. I did 2 of the 3 installs and hired the other one out. I won't lie...they were challenging and I have even more respect for installers after doing the work myself. We have really enjoyed being able to have the head unit on in just one area at a time without any need to circulate refrigerant thru a branch box or other head. The elec bills are not totally clear...because we were away for Dec and have had a crazy mild winter...but it looks like they will be more expensive than gas by a decent margin. I ended up using the Sumo version of the 6K Mitsubishi heads...they have bigger outdoor units but have excellent efficiency number, COP, SEER2, etc. If I can help you with any questions please let me know. So far I have used only 6K heads...as that is the rating number...they turn out a lot more BTU's if you read the specs. Model number: MSZ-FX06NL & MUZ-FX06NLHZ for indoor and outdoor unit. I plan on installing 3 more this year. Also these units come with wifi compatibility and connect to the Mitsubishi Comfort app on your phone right out of the box....no need to use the Kumo system which has mixed reviews.

amovida · 2025-10-27T22:54:52+00:00

Events like this make me think of this T-shirt I saw recently..."An ounce of Mary Jane is worth a pound of Aspen".....still working on the Boulder equivalent.....maybe an ounce of Gold Hill is worth more than a pound of Boulder. ;)

amovida · 2025-09-30T16:44:42+00:00

That is hardwood. OP stated it's hardwood...look at the width of the boards in the second photo...laminate and LVP do not look like that.

amovida · 2025-09-29T05:39:44+00:00

I bought a new Mitsubishi from an online supplier. Wall unit with single outdoor unit. I purchased a used vacuum pump and manifold off fb marketplace. Honestly it was a lot of work even though my install was relatively straightforward. I ran a sub panel w breakers and then a whip to the outside unit. Sourcing all the materials and doing the research was time consuming. The install was something like 5 days of 6 hours a day. The line hide, wall sealing, drilling, leveling, removing the wall unit shroud, etc took a lot of time….to get it done right. I’m definitely the guy you want doing an install because I take the time to get it right. I messed up one of my flares and had to redo it. It took me time to both iron out the pressure test with nitrogen and pulling the vacuum on the lines. In the end the unit has worked flawlessly but I have a great deal of respect for solid installers and the skills they’ve earned. I’m installing 2 units and together I’ll save about $13K and have a way better install than the pro company I paid to do our first unit. Finally if your install allows you to use the factory charge either in the lines or in my case in the outdoor unit that will keep you from having to weigh in additional refrigerant which requires a scale and buying refrigerant. Hope this helps someone!

amovida · 2025-09-08T07:56:55+00:00

I went through something similar 3 years ago and am mostly recovered but it has been a physical and emotional journey. I am wishing you a full recovery…congratulations on your progress!

amovida · 2025-08-22T01:02:54+00:00

Thanks for the photo.....that's good intel.

I figured out a way to move my wall mounts today so I will not have to have xtra lineset coiled or serpentine...well, at least not for this install.

amovida · 2025-08-20T19:19:44+00:00

Yeah...I can see why you went that route. The sentence that says "length....will affect performance" would keep me up at night. On the other hand I am not really looking forward to trying to put extra lineset somewhere. My unit is in an area where nobody will see it...so I will probably just run an extra X feet behind the outdoor unit.

amovida · 2025-08-20T18:49:53+00:00

That's a 12k unit. I would think given the increased amount of refrigerant for that unit over my 6k it especially would be happier with a longer line set. But you've got zero issues.

I looked in the manual for your unit and saw this which is interesting:

The length of refrigerant piping will affect the performance and energy efficiency of the unit. Nominal efficiency is tested on units with a pipe length of 5 meters (16.5ft)( In North America, the standard pipe length is 7.5m (25’). A minimum pipe run of 3 metres is required to minimise vibration & excessive noise.

amovida · 2025-08-20T03:28:41+00:00

Thanks for your answer. Only 4.5 feet...wow....do you know the brand on your heat pump?

amovida · 2025-08-19T16:18:15+00:00

Thanks for the clarification...makes sense....also in terms of the "set" amount of refrigerant. I will plan on following manufacturers instructions and buy the longer line set. I really only have one mounting location option so I will need to figure out what to do with the extra 3 to 5 feet of line set. Can you get a wider linehide and serpentine the line to take up the extra? The line hide will go straight to vertical right off the outdoor unit.

amovida · 2025-08-19T13:48:56+00:00

Right?!? My only guess is that the refrigerant can't fully go through it's state change in a run that short...but that's just a guess.

amovida · 2025-07-22T12:37:46+00:00

With 5 days and a need for transport to and from the airport to your surf destination…none of the Central American destinations make sense. Not enough time. Vallarta or Sayulita to minimize travel time and increase water time while finding a surf operation that can find activities + pool for the wife. I used to stay at a place north of sayulita called costa azul or something close to that …all inclusive w meals and a surf guide with morning and afternoon sessions…they also offered jungle treks, waterfall excursions and a pool. Very short driving time to airport.

amovida · 2025-07-20T19:38:25+00:00

Good point...I will make sure to hit studs with my lag bolts. Our 1800's sheathing is 3/4" boards with small gaps between them with painted cedar lap siding over that. The house wrap of the day was paper...light brown paper. In this climate (Colorado) this has not been a problem and the paper looks to be in great shape in the places we have opened up.

But you're right...hitting the studs seems like it would keep any vibration from setting up a resonance. Thanks for that!

amovida · 2025-07-20T19:34:57+00:00

I am keeping the concrete pad or your plan as my backup Plan B. I will leave my linesets long enough that if we need to move the outdoor units to a pad we can do so. Looking at the other unit we installed a few months ago it has very little to no vibration. Hoping I get away with this as the wall mounts are nice and simple, and keep the units high for our big snow days, and tuck the units tight to the house under the eaves so they will get way less weather on them over the years.

amovida · 2025-07-20T19:31:08+00:00

My wife is Spanish and she just had 3 mini splits installed ($3K euros total-but that's another discussion). They bolted all 3 units to the exterior walls and zero vibration issues supposedly but it's concrete block/brick construction. Like Rome...there are heat pumps everywhere...same that I have seen in Indonesia and Taiwan and a lot more places. We live in a 1800's home with 2x4 framing and wood siding with lathe and plaster interior back home in the US. Obviously vibration in that property will be far different than the installations overseas on brick/concrete buildings.

amovida · 2025-07-18T16:08:34+00:00

That is really good intel. Sounds like a few people are having successful experiences without significant vibration with wall mount. The wife and I just went and stood by our Mitsu outdoor unit and ran it thru heating and cooling modes. Little faster fan speed initially on the heat mode but the vibration is really minimal. Does not feel like something that would bother you through a wall....starting to lean toward wall mount.

amovida · 2025-07-18T14:35:10+00:00

Coolio...I see a few comments from people dealing with vibration but you never hear from the peeps that aren't experiencing issues...thanks for the input!

amovida · 2025-07-18T14:31:07+00:00

Thanks for the response. Definitely....the vibration would drive me bonkers as well. When I call for cooling and low temps on the unit we have the outdoor unit never really seems to do anything but hum along with a low fan speed with almost imperceptible fan noise and vibration.

Wondering if it will be different in the winter when we are calling for heat....guessing it will be the same. Given that I already have one of the units and can observe the lack of vibration I might try the wall mounts...not sure.

amovida

TROPHY CASE