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In-depth answers to the questions we get asked most — at boat shows, over the phone, and halfway through an installation. These are the longer explanations that don't fit on a spec sheet or in a one-line FAQ answer: how much battery you actually need, why we cool cabins individually, and what separates a clean install from a frustrating one.
Featured
Center consoles, monohulls, catamarans and trawlers each hold heat differently. Here’s how DC cooling fits each one.
Center ConsoleCool at the Console: How SeaAir Brings True Air Conditioning to Center Console Boats
No generator, no lost deck space: SeaAir runs straight off the battery bank to cool the head compartment and duct cold air out the dash to the helm.
MonohullCool Cabins, Quiet Anchorages: Why 12V DC Air Conditioning Suits Monohull Sailboats
Compact, separate cabins make monohulls a natural fit for DC cooling: cool only the berth you’re in, keep a backup when something fails, and leave the generator off.
CatamaranCooler Nights, Smarter Power: Rethinking Air Conditioning on Catamarans
A glass-heavy bridge deck by day and separate hull cabins by night: catamarans have two cooling problems, and one big central system solves neither well.
TrawlerStill Air, Cool Cabins: Why DC Air Conditioning Makes Sense on Trawlers
Trawlers don’t swing to the breeze the way sailboats do, so staterooms hold the day’s heat long after sunset. Overnight DC cabin cooling fixes that where you sleep.
Latest
12 articles · updated September 9, 2026
Marine Air Conditioning Installation: The Details That Make the Difference
A good marine air conditioner can only perform as well as its installation allows.
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Your Generator Should Be the Backup — Not the Plan
Marine generators are useful. There are times when having one aboard is extremely valuable.
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How Much Battery Do You Need to Run 12V Air Conditioning Overnight?
Running air conditioning overnight without a generator used to sound unrealistic on most boats. With modern lithium battery banks and efficient var...
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Why Every Cabin Should Have Its Own Air Conditioner
Marine air-conditioning systems are often sized to handle several cabins or a large portion of the vessel at once. But overnight, you may only need...
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Can One Marine Air Conditioner Cool Multiple Cabins?
Yes, it is possible to split the ducting from one SeaAir system and send conditioned air into two or more spaces.
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How Much Battery Energy Can You Actually Use — and How Fast Can You Put It Back?
Battery capacity is only half of the equation.
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AGM vs. Lithium Batteries: What Boat Owners Should Know
For decades, AGM and other lead-acid batteries were the standard choice for marine house banks. They’re familiar, dependable, and relatively inexpe...
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What Kind of Boats Does SeaAir Work Best In?
One of the more interesting things about building marine air conditioning is seeing where the systems actually end up.
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