Depending on where you live, your lake home may experience more benefits by having more than one a/c units versus just the one.
The benefits are many, such as increased efficiency, greater cooling power, increased comfort, & additional flexibility in temperature control.
If you are living in a lake home that has had additional living space added, your a/c machine may no longer be suited to cool the added living space, & will require another A/C unit. Homes with more than one story are commonly built with more than one seperate units, allowing the bottom & top floor to be cooled independently. Without a more than one machine system, the people living may experience problems of over cooling one area while not cooling a odd area enough. Heat rises to the upper floor so it’s crucial to have more than one a/c units to allow the plan to keep the upper level comfortable by lowering one thermostat. At the same time, homeowners can adjust the lower level to a bit higher temperature & overall save energy. You should think particularly comfortable in your lake home at all times! No matter if you are cooking, baking, hosting a get together, or working out in your lake home gym, you need to have that extra cooling power, and for those with medical conditions & the elderly, having suitable a/c is a necessity, not just a comfort. All of these situations would warrant the need for a minute a/c unit. A professional with industry expertise & experience can help you determine if your lake home should have a more than one machine A/C system.