Will this Mini-Split Heat the Whole Building?

This Mini-split heat pump can keep my whole shop/garage warm in the winter. I installed this during the summer and the air conditioning worked great. Now it's winter and I am still very happy with it. This unit runs strictly on my off grid solar system. Check out some of my other videos to see how I installed the solar, batteries, and inverters.

Signature Solar affiliate Links:

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The mini-split heat pump is a 9000 BTU model from Innovair. It does both heating and cooling. It touts an amazing claim of 38 SEER! Signature Solar provided this unit at no cost for the original video. I've chosen to make this follow up video to answer the questions from the viewers. The thoughts and opinions expressed in this video are mine alone. Thanks for watching, David.

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Disclaimer:
My videos are in no way intended to be instructional "how-to" lessons. I am simply documenting my project for informational purposes. Property damage, personal injury, or death may result, even when following manufacturer's instructions. I cannot be held liable for such damage or injury. It is YOUR OBLIGATION to ensure that you are complying with any local and federal laws as well as code and permit requirements.

David Poz, LLC

[_kikaso]

Thanks for running through your setup and providing kWh figure—most reviewers on YT don’t for some reason.

[chucktrotter]

1.14.22 Your garage at 66 degrees is warmer than my house at 64. I like watching your videos.

[mikefranks]

Dude! This is frickin' amazing! 261 w average use for heating!!! Getting mine soon.

[cantor]

9K BTU is the smallest Mini Split I've ever seen. I put a 15k BTU in my basement, and it's extremely efficient and quiet. We were running two 120V dehumidifiers to take out that moist smell, and they used insane amounts of electricity. The mini split keeps the moisture out (no wet dog smell), and our power bill has plummeted.

[LithiumSolar]

It's amazing how these things can pull heat out of freezing cold air like that!

[mark_osborne]

It is truly amazing how far these things have come

[shemmo]

i have two Mitsubishi A/C units and they are extremely efficient for heating. My daily consumption when -5C outside was around 2-3 kWh a day to keep 22C inside of 100 m2 house.

[NetworXmk]

I'm heating my house with mini splits not a big house but it gets the job done with two 12000BTU unis (not a great insulation on the house and old windows tho). Pretty decent power usage running 24/7 during the winter since the alternative is wood or wood pellets. And this is just a click of a button and you're getting heat.

[Kangenpower]

This is a great video, and it shows that ductless heat pumps really can collect heat and warm a room when it is 5F outside! So many are still stuck in the 80's when a R-22 heat pump was not good at collecting heat. This was because the refrigerant pressure was so low, and they did not have variable speed compressors back then. Still many will say "Uncle George says heat pumps are junk, and will not provide any heat when it is below 40F outside". While true to some extent back in the 80's it is not true now.

I like to point out to my customers "Have you ever been in a walk in refrigerator or -15 F walk in freezer? They can still take heat out of a -15 freezer, and make the air colder." It is this colder air that the heat pump blows out at about 3, 000 cubic feet per minute, then they take that heat and blow it into your living room at 300 cubic feet per minute at 120F. That is why your home will stay warm at night, even when it is 15F outside.

[widewinger]

Mini Split's are amazing, they pull heat out of cold air to a point very efficiently.

[pbenga]

We just got a ducted heat pump system about a month ago for our whole house. Last week it was a high of 5 degrees F and it heated the house very well. Kept the house at high 60s all day and night.

[dickclayton]

Signature Solar has a ebay storefront, Innovair has a Amazon store front both out of stock.
Innovair has quit including the ' installation kit '. Also Innovair runs a pretend storefront called powersaveac. The end of july I bought this unit from Powersaveac, I haven't recevied a return phone, or email response yet. Innovair billed my card. and shipped the elite unit. Innovair customer service was quick to return my phone call. Chris was very helpful.

[dwaneanderson]

6260wh in 24h = 260.8w average. That's impressive. A 260w resistive heater wouldn't come close to keeping a garage that warm on that cold of a night.

[robeckel]

38 SEER and 15 HSPF? Wow, that's amazing! I just put in a new 4-ton inverter heat pump in that's only 16 SEER and 8.8 HSPF, and I thought that was decently efficient!

[frankthies]

Mini splits are really great. So quiet and efficient. Love my shop now!

[johnpoltz]

The reason for high amp at startup is refrigerant migration. Refrigerant will travel unrestricted in system loop to the coldest point. Have not encountered a mini split system with factory installed solenoid valves, but implementation of solenoid valves to lock lineset from migration may be your solution. Nice video showing that size doesn't ALWAYS matter when air conditioning or heating, EVEN in the snow.

[TrackGeeks]

Thats a well insulated and sealed building! :)

I should do a 24hr test and see how my setup compares.

[dwmcever]

Based on 7amps @220V I roughly calculate a COP of about 1.7 @ 20F outside temp. (Assuming you're putting out 9, 000 btu's of heat.) .. I don't see enough data to plot a curve. But my guess would be at 0F outside temp your COP would be closer to 1. A COP of 1.7 would mean that under load your Heat Pump is 1.7 times more efficient than a Strip heater. This is impressive compared to Mini-Splits sold in Texas which many will hit a COP of 1 at 25F. Hyper-Heat type Mini-Splits will do a COP of 2.7 at 17F for comparison. Thanks for the Video. Now maybe this Summer I'll send up a 110F day from Texas so we can get a good look at that EER number. ;-)

[yankey]

Man that thing runs so NICE!! So cool to think it's taking that heat from out side and moving it into the house!! Thanks for sharing. God Bless brother..

[ggxdqtz]

Dave- Fine work on this video! I'm building a fully off grid cabin and this was hugely helpful as I try and calc my minisplit loads!!! No one seems to post on the daily consumption in real world terms like this video. Would be super helpful if you could share about how big your garage is (sqft and ceiling height) and a guestimate of insulation. Again, thanks for doing this, keep it up!