72blazer
Marion Cobretti
Damn IBB. I was literally looking at MS last night. 
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Mini-Split Recommendations?
- Thread starter PAToyota
- Start date
Seubs070
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- Aug 24, 2020
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- 2767
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Bringing this back up. Looking at one of the mr cool units. Mainly for heat and de-humidification. Having trouble finding a heat load calculator that fits this situation.
Garage is in the basement of the house. 26' x 38'
West wall exposed with two 9' wide garage doors
South wall is shared with the house
North and east wall buried foundation walls. I think they have a small amount of ridid insulation on the outside. East wall has 2" rigid and plywood on the inside. North wall is bare concrete.
Floor is concrete likely not insulated.
Located in SE Wisconsin
I think an 18k is enough for heating, but can't find anything to back that up.
Garage is in the basement of the house. 26' x 38'
West wall exposed with two 9' wide garage doors
South wall is shared with the house
North and east wall buried foundation walls. I think they have a small amount of ridid insulation on the outside. East wall has 2" rigid and plywood on the inside. North wall is bare concrete.
Floor is concrete likely not insulated.
Located in SE Wisconsin
I think an 18k is enough for heating, but can't find anything to back that up.
dave_dj1
Red Skull Member
Heating BTU Calculator: How Many BTUs Per Square Foot?
Question: How many BTUs do I need to heat 1500 sq ft? How many square feet will 30,000 BTU heat? Example: To heat 1500 sq ft home, you will need anywhere between 45,000 BTU and 90,000 BTU. These kinds of questions are very common when planning your heating needs. Adequately estimating how many...
learnmetrics.com
Seubs070
Well-known member
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- Aug 24, 2020
- Member Number
- 2767
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- 98
Thats just a genertic climate zone and SF calculator. Doesn't get into specfics of wall type and the fact that most of it is underground.Heating BTU Calculator: How Many BTUs Per Square Foot?
Question: How many BTUs do I need to heat 1500 sq ft? How many square feet will 30,000 BTU heat? Example: To heat 1500 sq ft home, you will need anywhere between 45,000 BTU and 90,000 BTU. These kinds of questions are very common when planning your heating needs. Adequately estimating how many...
wvracer821
Well-known member
I ended up ordering this for my new shop. I got it all wired up but have not had the lines vacuumed yet. I couldn't pass up the price. the shop is 24x30x12. 2x6 walls with fiberglass insulation. I'm planning on blowing in cellulose when I get the celling hung.
boreal Brisa 36000 BTU 3 Ton Smart Home Inverter Ductless Mini Split Air Conditioner with Heat Pump - 230V/60Hz BRS36HPJ1IAK - The Home Depot
The Brisa Wi-Fi Controlled Inverter Driven High Efficiency Ductless Mini-Split Heat Pump System is compact, quiet and comes in a variety of sizes to heat and cool any room. The outdoor compressor section
www.homedepot.com
dave_dj1
Red Skull Member
It should get you in the ball park
Projectjunkie
Whatever
I think heating with a mini split in Wisconsin is a non starter, once the outside temp gets to 20 or so, they freeze and shut down
Seubs070
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The mini splits heat down to 5 degrees. Had some at our old house to heat and cool the second floor and they worked great. We get maybe 10 days a year that the temp is below 5 degrees. Normally only at night. For those couple of days I can just shut the unit off and not be out in the garage.
arse_sidewards
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The new ones don't but the new ones are $$$
Projectjunkie
Whatever
Learn something new every day
I had one of mine running a defrost cycle on a 30deg night, every few years we get into the low 20s for a couple nights, I'll have a couple space heaters on hand just in case
I had one of mine running a defrost cycle on a 30deg night, every few years we get into the low 20s for a couple nights, I'll have a couple space heaters on hand just in case
Do they heat off the pump/compressor operation at those temps, or activate heat strips with extra high draw like standard AC/Heat Pump units?
Seubs070
Well-known member
- Joined
- Aug 24, 2020
- Member Number
- 2767
- Messages
- 98
Off the compressor. Some of the Mitsubishi ones heat off the compressor down to -13
Awesome
Here's a calculator I just came across that get into way more details than most. Does prove out that since I got the spray foam done on the new shop, cooling needs are pretty low.
Mini Split and HVAC Sizing Calculator - What Size Mini Split Should You Buy
Need to size a mini split? Use our mini split sizing calculator to get the perfectly-sized mini split system. eComfort takes your room information to instantly give you a properly sized mini split heat pump for your home or business.
www.ecomfort.com
Awesome
Here's a calculator I just came across that get into way more details than most. Does prove out that since I got the spray foam done on the new shop, cooling needs are pretty low.
Mini Split and HVAC Sizing Calculator - What Size Mini Split Should You Buy
Need to size a mini split? Use our mini split sizing calculator to get the perfectly-sized mini split system. eComfort takes your room information to instantly give you a properly sized mini split heat pump for your home or business.
LoL says I only need 1000 BTU for my attached garage...which for maintaining temp, might be close? but if I want to cool it down, I don't want it to take hours.
PAToyota
Red Skull Member
That is definitely a consideration in doing the calculations. There is a BIG difference between maintaining a temperature and turning it up/down for just an evening or weekend.