Want a Wall Mounted Ductless Heat Pump

pecmsg · April 26

https://forum.heatinghelp.com/discussion/comment/1895084#Comment_1895084

I advise against that.

Finding a Diamond dealer that will install it will be almost impossible.

Finding a qualified contractor that will install it will also be almost impossible.

Warranty WILL be a problem!

kadini · April 26

Well what should I do?

winnie · April 26

Either get a cheap unit and find a contractor who will just do the job (zero warranty) or pick a good contractor and have them supply the unit (full warranty).

The first approach is cheap but you are running unprotected. The second approach will probably be 2x or more the price.

Do not expect to buy a unit and have a contractor install it and expect a warranty. If the contractor is appropriately licensed, you might be able to pull off the warranty, but you will be on the hook to interface with the vendor, and you might be in the position of the vendor supplying the parts while you have to pay for the labor. When a contractor provides you with soup to nuts service, they mark things up to cover the cost of providing the warranty, but then they are holding the entire bag for the warranty service.

For what its worth, studied online, got my EPA 508 certificate, bought 5 'new-old-stock' Fujitsu units, and installed them in 2023. Zero warranty, zero problems. Used for air conditioning and shoulder season heating.

pecmsg · April 26

choose a great contractor.
let them decide what brand there comfortable with.

ChrisJ · April 26

https://forum.heatinghelp.com/discussion/comment/1895163#Comment_1895163

I think that's what they meant but it's worded a little confusing.

I don't think they meant buy equipment themselves and then have someone install.

pecmsg · April 26

https://forum.heatinghelp.com/discussion/comment/1895084#Comment_1895084

that’s what I read

kadini · April 26

My intent was always to buy the unit from the contractor who will install it. The 1st (only) person who has responded from Mitsubishi's list also does Fujitsu and Daikin. They said they'd give me an estimate for all 3.

J. WALTER BOOTH · April 27

you still have the option of finding a LG art gallery picture frame unit

there are a few still out there and you can still display your artwork

i know we still have a few instock

w

kadini · April 28

https://forum.heatinghelp.com/discussion/comment/1895203#Comment_1895203

🤣

kadini · April 28

One of my contractors who will be giving a Mitsubishi bid also recommended Samsung. This would be purchased thru Costco and installed by their (the same one who is recommending Samsung) contractor. So what about Samsung?

ChrisJ · April 28

I don't like the sound of that.

pecmsg · April 28

This would be purchased thru Costco and installed by their (the same one who is recommending Samsung) contractor.

Run fast!

kadini · April 28

1st contractor came out. Gave me 3 estimates a Mitsubishi premium a Standard Mitsu and a Daikin. The Daikin was recommended. The total turn key bid was just under what I was hoping for. That said knowing approximate equipment cost it's kind of depressing knowing how much they'll make for 3-4 hours work. But 60 month interest free financing! I was planning to pay cash but how can I pass that up?

ChrisJ · April 28

https://forum.heatinghelp.com/discussion/comment/1895311#Comment_1895311

Would it make you feel better if they got it done in 10 hours instead of 4 for the same cost?

kadini · April 28

https://forum.heatinghelp.com/discussion/comment/1895318#Comment_1895318

2-3 days would be even better.

ChrisJ · April 28

https://forum.heatinghelp.com/discussion/comment/1895319#Comment_1895319

But you're still getting the same result?

kadini · April 28

https://forum.heatinghelp.com/discussion/comment/1895321#Comment_1895321

🤣 Yes I am.

kadini · May 21

I knew you were all having trouble sleeping waiting for this. Sorry for the delay.

Had an 18,000 btu Mitsubishi mini split installed today.

I have a grace period for comebacks so plan to get them to relocate the head unit (center) and square it to the painting below.

No point in lining everything up until the head unit is properly centered and leveled in the space but you get the idea what it will look like.

Heat pump on the external wall precisely located to allow full opening of garbage cans.. Really impressed with the installation, and the installers.

I set the cooling temperature to 66 deg. F and turned on the recirculating fan on the furnace and the temperature on the hall thermostat has dropped from 71 deg. to 67 in maybe 20 minutes. So seems to be working as hoped. It's a beautiful day here in the 60s not really conducive to giving the unit a work out.

And the operation is totally noiseless and vibrationless, totally undetectable from inside while operating.

Thanks for the inputs and recommendations!

pecmsg · May 22

Doesn't Mitsubishi require a 9' Minimum line set

kadini · May 22

A what? I have no clue.

kadini · May 22

pecmsg · May 22

https://forum.heatinghelp.com/discussion/comment/1897088#Comment_1897088

it’s in the install manual.
minimum line set length

kadini · May 22

I couldn't find it in install manual. I Googled it and found a 3rd party said Mitsubishi didn't have a hard minimum but they recommended 10' for noise and vibration purposes.

Since the unit is wall mounted not sure how relevant that is.

Regardless from bottom of the coolant line conduit to top is 21 planks of siding at 4.5" spacing or 95.5" approximately. Looks like there's more than 12.5" of coolant line past that point but it's curved outward.

So the line length is about 9' feet. The attached to side of house length is 95".

Does that answer the question?

As noted previously the only noise we hear inside when the unit is on is the head unit fan. Nothing zero zip zilch zed from outside.

Technical nuances outside of my scope of knowledge aside I was SUPER impressed with the installation and the installers.

GGross · May 22

the line is fine. I couldn't find in any of their 3 manuals a specified min length for that model. either way the specified min for minis is primarily to deal with vibration and noise issues. you would probably need to direct connect a head to an ODU to get pressure issues. There are millions of these installed on multi family high rises in asia with about 2' of line.

That being said, consider moving the painting to line up with the head, instead of moving the head to line up with the painting. I am also a bit picky and noticed it right away in the pic

kadini · May 22

Move the painting? Wow that's brilliant! Guess that's why I could never be an AC guy. I am cancelling the appointment.

ChrisJ · May 22

The painting doesn't bother me.

The lineset cover being open at the bottom does, and I have no way of knowing if they sealed completely around where everything passes into the wall up higher.

If you can get some soft foam to tuck in the bottom it might save you a lot of trouble with rodents etc.

kadini · May 22

We have several penetrations from outside the house where decades ago I spent $hundreds even $thousands to get all the external cabling off the exterior of the house and inside the interior walls.

That was when we still had land line phones and didn't have wifi. I'd have been better off just doing nothing and then ripping the lines off the exterior walls later.

That said I can't bring myself to push the coax into the exterior walls and plugging permanently the holes. Forget about covering up each of the 2 coax wall plates carefully conveniently located in every single room in the house.

I'm not bitter…

None the less where the external coax cables penetrate the exterior walls I put steel wool in. Will that work?

ethicalpaul · May 22

I will throw out a warning that sometimes the condensate line can get crimped or compressed and water will build up in the tray that is inside that head unit on a real humid day. Water can then run down the wall below the head unit, so be sure not to put your most valuable artwork under the head unit. The Pink Table by Georges Braque, I love Cubism

kadini · May 22

I inherited print from my parents. Nobody else wanted it! I love it. I need to get it properly framed and covered with UV glass. Golly are with going off topic.

Want a Wall Mounted Ductless Heat Pump

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