Split system for Garage office

[anuccite]

I am building a 12x14x8 office in my garage.... I plan to insulate all 4 walls (metal building is already insulated to R-9 I will add R19 to the walls / ceiling of the office

since the smallest split system i can find is 9000btu..... will that be overkill to a point of a problem....

Coastal carolina temp swings....

And to be honest I've been looking at some 9k units on ebay @ less than $1k

 

[yeldogt]

The larger building is not conditioned?

I think you will be fine -- mine is about the same size using an LG 9k from about 10 years ago. The inverter will allow it to run way down .. you don't really want a mini to be running above 80% most of the time anyway .... they are most efficient in the mid/upper range.

I will say this -- you get what you pay for. If you are all DIY -- it's your time and the cost of the unit if it dies in a few years. if you are paying someone to do part of the install .. get a better unit.

They make some with pre-charged lines that fall in the middle of the efficiency pack -- may be a good way to go.

 

[anuccite]

The larger building is not conditioned?

I think you will be fine -- mine is about the same size using an LG 9k from about 10 years ago. The inverter will allow it to run way down .. you don't really want a mini to be running above 80% most of the time anyway .... they are most efficient in the mid/upper range.

I will say this -- you get what you pay for. If you are all DIY -- it's your time and the cost of the unit if it dies in a few years. if you are paying someone to do part of the install .. get a better unit.

They make some with pre-charged lines that fall in the middle of the efficiency pack -- may be a good way to go.

The Larger building WILL eventually get HVAC, but Priority is getting my office out of the house and into garage....

I saw some LG's for a couple hundred more..... Might consider that...