Learn how to properly size your mini-split system in this informative video. For any questions or assistance, feel free to reach out to us at www.gotductless.com via chat or phone call. We're here to help you make the right choice for your comfort needs.

Definitely helpful Thanks for the help!

@gotductlessusa

Ай бұрын

Glad it helped!

very concise

@gotductlessusa

5 ай бұрын

thank you!

Thank you for these great series.... nice work and very helpful! Can you please comment on why room square footage measurements are used rather than cubic feet? You mention using room height X length X width in your earlier comments, but then you later drop the height factor, and the calculator only uses sq. footage. After moving into a newer home with 11 ft ceilings in some spaces, I am convinced ours, and many other HVAC home systems are underestimating the heating and cooling needs because they neglect calculating the HVAC needs using cubic feet. Thank you. TAW

@gotductlessusa

5 ай бұрын

Thanks for the kind words! It definitely is helpful to use cubic feet if you have something other than 8-9ft ceilings. Our calculator is currently hardcoded to just standardize the ceiling height for simplicity. However, this is great feedback. We will consider adding room height (and hence cubic ft) to improve accuracy for higher ceilinged spaces.

a bit too much teaser and light on achieving the stated purpose

@gotductlessusa

4 ай бұрын

Just trying to help people out :)

I like the video. Thanks for the info. I have a free-standing building that is 12x24 with an 8ft ceiling with concrete slab floor. Walls and ceiling are insulated with R19. We go down to 0° F, often in the winter. I need to heat the room to 80°F What do you recommend? I'm looking towards 12000 btu hyper heat. Thanks

@gotductlessusa

6 ай бұрын

12,000 BTU is the calculation that I came up with using the calculator on our site. If you'd like to output 80 F consistently, you may consider increasing the size to 15,000 BTU just to be safe. gotductless.com/products/msz-fs15na-muz-fs15na-mitsubishi-15-000-btu-hyper-heating-single-zone-system?_pos=1&_psq=fs15&_ss=e&_v=1.0

Very useful and easy to use calculator, just curious at what ceiling heights is your calculator based on, 8? 9 ft? Should I +/- 1000 BTU per each ft of ceiling height?

@gotductlessusa

7 ай бұрын

Thanks! The calculator is based on 8ft ceilings. The BTU calculation between 8 and 9 ft ceilings is not drastically different.

I have a 20 x 20’ garage with 10 foot ceilings. It is my workshop and I am in Phoenix. I have the ceiling insulated. I had 2 HVAC companies give me estimates. One said I should go with a 24k BTU unit and the other said I would need a 17k unit. I’m trying to figure out which unit would be best and looking for an actual mathematical calculation such as L x W x H = CF x ?? = BTUs. Where can I find this?

@gotductlessusa

5 ай бұрын

Thanks for the information. The most accurate way to get a pin-point load calculation is to run your information through a software to get a Manual J report. The good thing about mini splits is that you can have a variance of sizing since the systems only come in 3k increments anyway. We use 9 ft ceilings as standard for our calculator. The difference of 1 ft for a 20x20 space is not going to be more than 3k BTU. In Phoenix, your main concern is cooling. Cool air falls which is good because you'll be working at ground level, not ceiling level. If you hang the unit at 8ft rather than 10 ft the system will be working less since it won't be circulating the air close to the ceiling. Feel free to call us at 866-399-0206 for more info. Hope that helps!

So I have a 1800 sq ft shop with about 400 feet of office space and 1400 sq ft of non insulated shop space. Ceilings are 16 ft high 20 at the peak height and a non insulated 14 ft garage door. Would 2 24000 btu units be good to cool/heat this space with no insulation? I only ask because I’m renting for my business

@gotductlessusa

6 ай бұрын

It is hard to say without knowing how drafty that garage door is. We would say you can surely install 2 24k single zones in there and it should be comfortable. It just may be inefficiently running if you don't have it insulated.

I have a machine shop in a 17x24 garage with no insulation in Phoenix Arizona. According to the Manufacturer, I need a 18,000btu unit which has a 7.5 amp draw. Would it be best to go with a 24,000btu unit with an 11 amp draw? I don't want to be wishing I went bigger.

@gotductlessusa

5 ай бұрын

Thanks for the question. If you are having reservations, I would go with the 24k single zone. It's a mini split so it's not going to be outputting 24k 24/7. It will only use what needs but will have the capability to ramp up to 24k on the hottest days. Hope this is helps!

Thanks for the video. Question though. For energy efficiency...would it be better to have three indoor 8,000 BTU units tied to a single 24k BTU outside unit, or three individual 8,000 BTU systems (indoor & outdoor)...speaking from a total energy usage standpoint.

@gotductlessusa

3 ай бұрын

SEER ratings might be higher on single zones but you would be consuming more electricity overall. Simple way to look at it would be you would have 3 15 amp breakers vs. one 25 amp breaker for a 2 ton multi-zone. Hope that makes sense!

@redbaron6805

10 күн бұрын

@@gotductlessusa Must be something missing there. You would never replace three 15 amp single units with a single 2 zone 25 amp, as a 2 zone wouldn't support 3 zones. Also, the answer doesn't really answer the question. Why would 3 single zone 8,000 BTU units use more energy than a single 3 zone unit with 24,000 BTU's...? Using a SEER as a baseline, a SEER 13 12,000 BTU A/C would use roughly 900W every hour. If the efficiency was identical, a 24,000 BTU unit would use 2,700 watts. If the single zone units were a higher SEER efficiency, they would use less energy than a single 3 zone unit with a lower efficiency, and vice versa. Breaker size doesn't reflect energy use, so that comparison doesn't make much sense to begin with.

Ive noticed mr cool doesn't offer a 6k btu mini split head unit. Our master bedroom is 250 square feet and a 9k unit is too big.

@gotductlessusa

6 ай бұрын

You can definitely do a 9k in a 250 square foot room. The unit will modulate to what the room is demanding. Of course a 6k would probably be a better fit but 9k surely not a horrible idea.

Length x width x height is Volume...not square footage.

@gotductlessusa

4 күн бұрын

We use length x width in our calculator with a built in ceiling height of 9 ft. We did add in height by accident in one of the clips which is in fact volume. Thank you.

LxWxH gives cubic feet, not square footage as you keep stating early in the video. How many windows and doors in a room is a factor but equally is what type. If the windows are single pane or double can make a huge difference. I see you left out considering the function of the room in question. Is the room a Kitchen or maybe an office space. Both of these can mean they have more "heat" generated in the room than say a living room or bedroom before calculating HVAC needs.

@gotductlessusa

5 ай бұрын

This is helpful! Cubic feet is great to use. We leaned more into using square footage just for simplicity since the average home has 8 ft ceilings. The function of the room is also important. Since mini split indoor sizes range by 3k BTU due to the fact they are modulating systems, there is flexibility with BTU sizing for kitchens and such. Great input though, we appreciate it!

@wjmcleanslate1

2 ай бұрын

You obviously didn’t watch past 5 mins.

you have to do a heat loss calculation for the system going into the home

@gotductlessusa

6 ай бұрын

It is always best to complete a Manual J load calculation to get precise numbers. However, this is not always required. Some counties and states want to see it for inspection purposes while other areas are way more lenient. This video is meant to help people get a grasp on how load calculations are made

Can I put it in RV ?

@gotductlessusa

Ай бұрын

You can but would need a power transformer.

sorry but I didn't get any good information to pick what size I need out of this video. it was all common sense things you would already know.

@gotductlessusa

21 күн бұрын

Thanks for the feedback. If you want more pro advice, feel free to send in your info about your project to info@gotductless.com or call us at 866-399-0206 and we can definitely provide you with more information.

A lot of fluff Dude

@gotductlessusa

4 ай бұрын

It's a helpful format for some. But noted! Thanks for the feedback.

You look like and sound like a counterfeit Kyle Rittenhouse. It’s a good look, though. I’m can see why you copied it

@gotductlessusa

7 ай бұрын

As long as you learned something about mini splits!