When it comes to things enjoy portable space oil gas furnaces plus portable a/c systems, they are great to have plus they can possibly save you month on weekly energy use. However, they work only this nice to an extent. In other words, if you are in the super tepid summers in the desert for instance, a portable a/c idea isn’t going to do much aside from get you through one afternoon plus night of an Heating, Ventilation and A/C emergency with no a/c. By no means would it work to replace your central heating plus a/c system’s cooling. Because the un-even temperatures are so high, the only way you could make that work would be to have multiple portable a/c systems around your home. And if you were to do that what would be the point? The amount of currency you would spend on all those portable a/c systems would be much higher than any real excruciating electric bill, but plus running them all would turn out to use the same amount of energy or more than your central heating plus a/c idea is already using! So yes, you can use portable space oil gas furnaces plus portable a/c systems as a means of energy savings plus they will work plus save you currency. However, if you have real dire weather you will have no option however the use the nice outdated central heating plus a/c idea component to keep your condo either cool or moderate while all of us were in such dire weather.