Warehouse a/c system

I’m having a particularly strenuous time deciding what kind of air conditioning system to have installed in my entirely new art gallery. The gallery happens to be set up in an outdated warehouse, so there are tons of leaks as well as open spots where air can escape. I imagine it would be seriously strenuous for an Heating, Ventilation as well as A/C appliance to keep the location cool or moderate because air would consistently be leaving the building. I do most of our work as well as inside of a small enclosed space, so I am considering simply putting a portable air conditioning device in there. It would save myself and others a great deal of money, as well as I would not have to pay a big utility bill by trying to run a Heating, Ventilation as well as A/C device in a location not meant for an air conditioning device. Still, I’m on the fence about this decision. Saving money would be great, however there will be a lot of art hanging in the open warehouse space. When potential patrons come to shop around, I want them to be perfectly comfortable so they may want to stay as well as make a purchase. I imagine having the space heated as well as air-conditioned would increase the likelihood of them browsing as well as spending more money. I’m going to have to consult with a Heating, Ventilation as well as A/C professional about this issue. Perhaps there are some ways that I can make the warehouse more efficient. If I could fix the leaks as well as make the windows airtight, I may be able to have a proper Heating, Ventilation as well as A/C device installed with no problem at all. I am in need of someone else’s knowledge! If an air conditioning system will increase our sales in the long-term, I know it would be worth it to go ahead as well as have the best possible device installed.