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expired Posted by sapimati • Apr 18, 2023
expired Posted by sapimati • Apr 18, 2023

Costco Members: MrCool E Star DIY 12K BTU Ductless Mini-Split Heat Pump System

& More + Free Shipping

$1,200

$1,450

17% off
Costco Wholesale
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Deal Details
Costco Wholesale has for their Members: MrCool E Star DIY 4th Gen 12K BTU Ductless Mini-Split Heat Pump Complete System for $1,199.99. Shipping is free.

Costco Wholesale has for their Members: MrCool E Star DIY 4th Gen 18K BTU Ductless Mini-Split Heat Pump Complete System for $1,599.99. Shipping is free.

Thanks to Community Member sapimati for finding this deal.

Note: A Costco Membership is required to purchase this item.

Features:
  • Up to 22 SEER
  • Gold Fin Condenser: Corrosion-Resistant Coastal Living
  • 4R-410A Environmentally Friendly Refrigerant
  • Standard 7-Year Compressor/5-Year Parts Warranty
  • Register for Limited Lifetime Compressor Warranty
  • Variable-Speed DC Inverter Compressor Technology Cuts Operating Costs

Editor's Notes

Written by SubZero5 | Staff
  • About this deal:
  • About this product:
    • Rating of 4.4 from over 110 Costco customer reviews.
  • Additional note:

Original Post

Written by sapimati
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Costco Wholesale has for their Members: MrCool E Star DIY 4th Gen 12K BTU Ductless Mini-Split Heat Pump Complete System for $1,199.99. Shipping is free.

Costco Wholesale has for their Members: MrCool E Star DIY 4th Gen 18K BTU Ductless Mini-Split Heat Pump Complete System for $1,599.99. Shipping is free.

Thanks to Community Member sapimati for finding this deal.

Note: A Costco Membership is required to purchase this item.

Features:
  • Up to 22 SEER
  • Gold Fin Condenser: Corrosion-Resistant Coastal Living
  • 4R-410A Environmentally Friendly Refrigerant
  • Standard 7-Year Compressor/5-Year Parts Warranty
  • Register for Limited Lifetime Compressor Warranty
  • Variable-Speed DC Inverter Compressor Technology Cuts Operating Costs

Editor's Notes

Written by SubZero5 | Staff
  • About this deal:
  • About this product:
    • Rating of 4.4 from over 110 Costco customer reviews.
  • Additional note:

Original Post

Written by sapimati

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Top Comments

The HEEHRA is not related to the Residential Energy Credit. You could claim both for an installation next year. The HEEHRA is a point of sale rebate program and not a tax credit. It is for low and medium income households only (below 80% or below 150% of Area Median income). It is a very substantial rebate that covers up to 100% of the cost (upto $8000) for low income households and 50% of the costs for a medium income. It is not in place currently as the DOE takes its time figuring out the procedures but expected to be in place by mid 2024.
This is the HEEHRA rebate program. Was passed as part of IRA but the DOE taking its own time in setting guidelines. Expected to be available in mid 2024 and will be a point of sale rebate so you won't have to wait till tax time. https://www.rewiringamerica.org/p...rebate-act
These are the MrCool DIY units, so they are installable without a HVAC contractor to vacuum the lines, etc. The lines come pre-charged with coolant

190 Comments

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Apr 21, 2023
273 Posts
Joined Jul 2009
Apr 21, 2023
Docnoq
Apr 21, 2023
273 Posts
Quote from RyanL :
There's ways to tackle your issues and they're probably not too complicated. When I was using central air (single system) I would typically close off vents downstairs in the summer (at least most of them, most of the way) and close off vents upstairs in the winter. They make magnetic covers (kind of like giant fridge magnets) to totally block off vents. Another option would be to get a damper or two to put into the duct work to direct the airflow (have summer and winter settings). Another option would be to buy one of more in line booster blowers to go into the duct work to increase airflow to trouble areas. Also, how hot is your attic getting? Maybe an attic fan with a thermostat set to 120 would help with your problem too. IDK, without actually seeing your place it's hard to tell what's going on but it sounds like your system wasn't installed by anyone who has a lick of common sense.
One of the weird things about the house is the HVAC system is down flow which we've heard is not ideal, but I might look into the dampers if it's not too expensive. We had a 2nd attic fan put in when we had our insulation done, but before that it was getting pretty hot up there. Haven't checked it since but I'll take a look this summer.
Apr 21, 2023
6,271 Posts
Joined Feb 2008
Apr 21, 2023
RyanL
Apr 21, 2023
6,271 Posts
Quote from Docnoq :
One of the weird things about the house is the HVAC system is down flow which we've heard is not ideal, but I might look into the dampers if it's not too expensive. We had a 2nd attic fan put in when we had our insulation done, but before that it was getting pretty hot up there. Haven't checked it since but I'll take a look this summer.
Nope, down flow is typically good if your unit is mounted in the attic.
Apr 21, 2023
6,271 Posts
Joined Feb 2008
Apr 21, 2023
RyanL
Apr 21, 2023
6,271 Posts
Quote from MellowStar827 :
Hvac guy here , these units work really well, the " fly in the ointment " here is the flare seals on the lines . EVERY one I have ever used had poorly made flares on the lines , I usually cut them off and reflare with a good Hvac flare tool and have rarely ever had a problem after doing that
Don't think that is needed for these particular units, it's a different kind of sealed fitting but you're right, flared end fittings are horrible if not perfect and is probably the source of most people's problems.
Apr 21, 2023
273 Posts
Joined Jul 2009
Apr 21, 2023
Docnoq
Apr 21, 2023
273 Posts
Quote from RyanL :
Nope, down flow is typically good if your unit is mounted in the attic.
Our unit is setup on the first floor though 😕 so air has to be pushed under the house first before coming back up to where it needs to go
Apr 21, 2023
553 Posts
Joined Mar 2008
Apr 21, 2023
jefflins
Apr 21, 2023
553 Posts
Quote from dcmanryan :
A HVAC tech worth a lick won't touch equipment someone else buys. It's a no win situation for them as they get equipment at a discount and can easily make money on the mark up and the other reason is idiotic home owners will always try to blame the guy who installed it when their typically cheap unit fails. Why waste your time when you can make much more money elsewhere?
In other words, why give a fair price when you can screw people.
1
Apr 21, 2023
138 Posts
Joined Aug 2010
Apr 21, 2023
trojax
Apr 21, 2023
138 Posts
R410A will be obsolete soon, I wish they are R32.
Apr 21, 2023
68 Posts
Joined May 2008
Apr 21, 2023
dotbody
Apr 21, 2023
68 Posts
Quote from Vijju :
What am I missing here? Amazon has 24k btu for 1100.
The Senville SEER is 18. MrCool is 22. Which I believe means you can get a 30% tax credit with MrCool. Essentially making it the same price. Not to mention it'll be cheaper to run month over month. Not only that, but you get Costco return policy. AND the Senville only comes with a 16' line (vs 25' with MrCool). AND it's a 5yr/1yr compressor/parts warranty vs a 7yr/5yr with MrCool. Alos—the MrCool doesn't require any vacuum pump, etc. Which means you won't void your warranty if you DIY and is much easier to install.

Someone correct me if I'm wrong, but that means for about the same price after credit, the MrCool seems like the much better option!

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Apr 21, 2023
5,065 Posts
Joined Feb 2009
Apr 21, 2023
dcmanryan
Apr 21, 2023
5,065 Posts
Quote from jefflins :
In other words, why give a fair price when you can screw people.
Screw people? They owe you nothing. Why in God's name does this country think mechanics of any kind owe people a deal? Do you ever hear of a neighbor of a doctor calling his house and say hey, can you come check out this shoulder pain? He's going to say call the office and we will get you in. There's also the other reasons I named too. You do realize anyone who's ever sold anything marks the price up right?
Last edited by dcmanryan April 21, 2023 at 12:10 AM.
2
Apr 21, 2023
872 Posts
Joined Jul 2005
Apr 21, 2023
Lerxst
Apr 21, 2023
872 Posts
Quote from Benny4620 :
I did one. Overall a 3-4 out of a 10. You have to be somewhat handy as you will have to penetrate the exterior of your home/building.

Mine was Pioneer version. My line set was not pre-charged ( condenser was ) so I knew I would need a vacuum pump. Arrived as a kit. I ran my own 220 wiring and disconnect. I had to purchase a whip separately to connect wiring the disconnect to the condenser.
It is quite literally plug and play. However it requires an electrical outlet ( new or existing ).

My line set was sized incorrectly - whoever pulled the order didn't verify - so I chose to purchase my own copper and cut to length. It also meant I had to flare my own end.
Had the correct line set arrived: this would be very simple.
FWIW: I used nitrogen to help clear any water/humidity out of the line set.
I ran the vacuum pump for 35-40 minutes. Then let it sit for a few hours to verify no leaks.
How did you do the nitrogen pressure test? I know you can get the gauges easily enough but where did you get bottled nitrogen and what was the cost?

I need two units. Downstairs I need a 18k. I think I'm going to get the Senville Aura as it has a shorter run of line and works to heat at much lower temps. I could get the Mr. Cool unit, cut and re-flare the pipe but that defeats the purpose of the pre-charged lines. For my master suite the Mr. Cool 12k will be perfect. I've watched a ton of videos and this seems easily DIY to me, including wiring.
Apr 21, 2023
2,388 Posts
Joined Aug 2004
Apr 21, 2023
cacadiablo
Apr 21, 2023
2,388 Posts
Got one. Just need to figure out how to keep the raccoons from tearing it apart. I should probably just construct a cage around it.
Apr 21, 2023
3,240 Posts
Joined Feb 2008
Apr 21, 2023
orangearrows
Apr 21, 2023
3,240 Posts
Quote from ducksoup18 :
Some states require installation by a licensed HVAC tech. Worthwhile to look into.
Any idea what the installation of these might run $? Ballpark
Pro
Apr 21, 2023
51 Posts
Joined Oct 2017
Apr 21, 2023
DavidW9690
Pro
Apr 21, 2023
51 Posts
This is a good deal for cooling, but not for heating in cold climates. If you're looking for a CC heat pump (operates lower than 5f outdoor) look at the Senville Aura. It's a midea unit as well, but is rated down to -22. This MrCool system has only 6k BTU at 5f, but the Aura retains full 12k capacity at that point with the same COP.
Apr 21, 2023
39,017 Posts
Joined Nov 2005
Apr 21, 2023
Dr. J
Apr 21, 2023
39,017 Posts
Quote from DavidW9690 :
This is a good deal for cooling, but not for heating in cold climates. If you're looking for a CC heat pump (operates lower than 5f outdoor) look at the Senville Aura. It's a midea unit as well, but is rated down to -22. This MrCool system has only 6k BTU at 5f, but the Aura retains full 12k capacity at that point with the same COP.

I wish manufacturers would publish HSPF vs. ambient temperature. Usually it's around 3-5 but the colder ambient (outside) is, the lower the factor since it's "more difficult" to extract heat from colder air and move it inside.

I have 3 heating options (some cases 4) in my home and I know the cost of the input very well (NG, electricity, propane, wood pellets), but choosing which to use is difficult (meaning what's cheapest to run). The largest wild card is that I know my (air source) heat pumps have reduced efficiencies (HSPF) at colder temps, but what exactly is the interplay?
Pro
Apr 21, 2023
7,074 Posts
Joined Aug 2007
Apr 21, 2023
lotsalotsadeals
Pro
Apr 21, 2023
7,074 Posts
Quote from arpanj2 :
I have 4 rooms on my 2nd floor, should I go with 4 of these or do something else? We use only 2 rooms generally at any time

Right now, I have central ac but it doesn't cool my upstairs, downstairs still to an extent - so was thinking of making it 2 zones.

PS: I will need to run 4 dedicated lines from my main panel to these for sure, and will need to hire an electrician!
Just replace the Central AC.
If you require Heat, get a Heat Pump Unit.
The house will be much more comfortable.
And will cost you pretty much the same.
1

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Pro
Apr 21, 2023
51 Posts
Joined Oct 2017
Apr 21, 2023
DavidW9690
Pro
Apr 21, 2023
51 Posts
Quote from Dr. J :
I wish manufacturers would publish HSPF vs. ambient temperature. Usually it's around 3-5 but the colder ambient (outside) is, the lower the factor since it's "more difficult" to extract heat from colder air and move it inside.

I have 3 heating options (some cases 4) in my home and I know the cost of the input very well (NG, electricity, propane, wood pellets), but choosing which to use is difficult (meaning what's cheapest to run). The largest wild card is that I know my (air source) heat pumps have reduced efficiencies (HSPF) at colder temps, but what exactly is the interplay?
HSPF is the average efficiency of the system when heating. It's essentially the total BTUs delivered divided by the sum of all KWh used. It's a decent measurement, but depends on your climate zone. Colder climates will have a lower HSPF than the same unit in a warmer climate.

Your best option is to look up the COP of the system at different operating temperatures. You can find this at a ashp.neep.org. they have a vast database of all modern heat pumps, along with their output curve for different temps.

Lastly, there are calculators people have made that help you know when it's more cost effective to run NG or your heat pump. Check out r/heatpumps subreddit for that stuff. One of the more useful calculators for that is here: https://siecje.qithub.io/heatpump-cost/

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