Mini Split and heating

RDJ

ZERO shits given
Established Member
Joined
Oct 3, 2002
Messages
19,853
Location
Texas
I have one set up for my 2 car garage. it works great. heats and cools quick and keeps it that way. I did upgrade my garage door to an insulated one as well.

as far as having one do the house depending on the size you will need more than one
 

KingBlack

I'm more stupid than I post
Established Member
Joined
Nov 21, 2004
Messages
6,248
Location
myrtle beach
I have one set up for my 2 car garage. it works great. heats and cools quick and keeps it that way. I did upgrade my garage door to an insulated one as well.

as far as having one do the house depending on the size you will need more than one
well look who it is. good to see you
 

xblitzkriegx

Well-Known Member
Established Member
Joined
May 24, 2010
Messages
1,410
Location
Earth
If you're still living in SC, you shouldn't have a problem with a mini-split heat pump.

If you can afford it and actually need it, Daikin, Mitsubishi, LG, Fujitsu all have low ambient temp units capable of running down to and below zero for heating applications. I'm sure there's others but I dunno about them.
 

jconnor3

Member
Established Member
Joined
Aug 10, 2009
Messages
303
Location
Indianapolis, IN
I used a mini split to cool & heat our 900sqft addition we put on our house last year. It was an attic remodel where we removed the roof and put a second story on. I used Mr. Cool's DIY unit that comes with pressurizes lines and I did the entire install. It works flawlessly. Kept the upstairs at 70 in 100-degree temps and kept it 70 when it was -10 degrees out. For $1,500 you can't beat it I don't think.

This is the unit I bought and where I bought it from. Ingram's has a good reputation for this stuff and I had a good experience with them as well.

http://ingramswaterandair.com/mrcool-seer-ductless-minisplit-heat-pump-wifi-p-22615.html
 

CV355

_
Established Member
Joined
Aug 24, 2016
Messages
3,272
Location
_
We had mini-splits in the offices where I used to work. Fantastic little units. We also had larger portable heat/ac units with built-in evaporators. Those worked quite well at 1/4 the price of the split heat pump units.

I'm thinking about putting one in our garage.
 

sleek98

Well-Known Member
Established Member
Joined
Nov 19, 2012
Messages
2,168
Location
Kansas City, MO
I used a mini split to cool & heat our 900sqft addition we put on our house last year. It was an attic remodel where we removed the roof and put a second story on. I used Mr. Cool's DIY unit that comes with pressurizes lines and I did the entire install. It works flawlessly. Kept the upstairs at 70 in 100-degree temps and kept it 70 when it was -10 degrees out. For $1,500 you can't beat it I don't think.

This is the unit I bought and where I bought it from. Ingram's has a good reputation for this stuff and I had a good experience with them as well.

http://ingramswaterandair.com/mrcool-seer-ductless-minisplit-heat-pump-wifi-p-22615.html

Did you have a tech come out and do a nitrogen purge and pull a vacuum?
 

Thump_rrr

Well-Known Member
Established Member
Joined
Nov 4, 2005
Messages
1,554
Location
Montreal
I'm a mechanical contractor.
I've been installing ductless mini-split systems since 1999.
The 3 units in my home are from 2001. They are due for a change since the newer systems are now more efficient and work down to lower temperatures.

I have installed over 1,000 of these things and they are the best thing since sliced bread.

All modern good quality units are "inverter" meaning that there is a variable frequency drive that modulates the speed of the compressor to vary its capacity.

Inverter units can usually run down to around 0F. Some with optional low temp kits such as the Daikin and Mitsubishi can go as low as -40F.

Another plus of inverter units is that it is very difficult to oversize a unit for a space since once temperature is reached the compressor reduced capacity by slowing down without turning the compressor off.
In a traditional air conditioner if the unit is oversized it will cool the space down too quickly and turn off not allowing the unit to pull the humidity from the space.

Some people will try to sell you multi head units meaning 2-3 heads with 1 outdoor unit. The problem is that if one unit goes down they all go down.
Multi head units are great if your space to mount exterior units is very limited.
Cost savings on multi head units is minimal.

In northern climates you can go as high as 1,000sq/ft per ton (12,000btu).
In southern climates it's closer to 500-600 sq/ft per ton.
 

colin450

Well-Known Member
Established Member
Joined
Sep 26, 2004
Messages
1,777
Location
MA
If you're in Myrtle Beach they should work great for heating your house if it gets cold out. There's plenty out there now the heat efficiently if it's -15 outside.
 

Users who are viewing this thread



Top