Cost To Run A Hot Tub

So, you’re thinking about buying a hot tub. Or maybe you already have one and are staring at your electricity bill like it’s a horror movie sequel. Let’s talk about the cost to run that thing, because it’s realer than your neighbor’s new barbecue.

Think of a hot tub as a giant, outdoor crockpot. Instead of soup, you’re slow-cooking yourself. And just like that crockpot, it loves electricity—sometimes more than your teenager loves their phone.

The Big Scary Number: Electricity

Electricity is the main event. In the US, running a standard hot tub can cost anywhere from $20 to $60 per month in mild weather. In winter? That number can double faster than a cold person running for a towel.

I once met a guy who said his hot tub cost “about the same as a daily latte.” Sure, if that latte is also heating a thousand gallons of water in below-freezing temperatures. My latte sits quietly in a cup; his is actively fighting the laws of physics.

The thermostat is your best friend and your worst enemy. Every time you add a degree, your wallet sighs. Keeping it at 100°F instead of 104°F can save you 10–15% on energy—which is like finding a $20 bill in last winter’s coat.

The Cover: Your Hot Tub’s Blanket

Here’s a fun fact: if your hot tub doesn’t have a good cover, you might as well be heating the backyard. A flimsy, waterlogged cover is like trying to keep warm with a wet paper towel.

Invest in a thick, insulated cover. It’s not glamorous—it’s the supportive uncle at a family barbecue. It quietly does the work so everyone stays warm and happy. Replace it every 3–5 years, or when it looks like a sad, deflated marshmallow.

Water and Chemicals: The Hidden Snacks

Water isn’t free, but it’s cheap. Filling a standard tub costs maybe $5 to $10. The real wallet-itch is the chemicals. You need sanitizer, pH balancers, shock treatments—it’s like a science kit for adults who just want to relax.

I once forgot to check the pH for three weeks. The water turned a shade of green that made my lawn jealous. I spent $40 fixing it and learned the hard way: neglect is expensive. A $10 test strip kit saves you from a $50 algae fiesta.

Expect to spend about $20–$30 per month on chemicals if you’re diligent. If you’re lazy, double that—and add a scrubbing session that will test your marriage or your patience.

Filters and Maintenance: The Unsung Heroes

Filters catch the stuff you don’t want to think about: sunscreen, dead skin, and that mysterious leaf that traveled three blocks. You need to rinse them every week and replace them every year.

A new filter costs $20–$50. Skipping this is like never changing your car’s oil—it works until it really doesn’t. Your pump will hate you, and pumps cost $300–$700 to replace. Respect the filter, folks.

The Big Picture: Total Monthly Cost

Let’s do the math with average numbers. Electricity: $40. Chemicals: $25. Filters and cover replacement spread out: $10. That’s about $75 per month. Is that a lot? It’s roughly three nice dinners out. Or one truly epic pizza delivery.

Now compare that to a gym membership you never use (guilty). The hot tub actually gets used—especially if there’s wine involved. Plus, you’re not driving anywhere to soak. It’s a staycation in your own backyard.

Winter Cost Shock (And How To Survive)

Winter is the hot tub’s Olympic season—and your electric bill’s villain arc. Running costs can jump to $100–$150 per month in snowy climates. That’s like paying for a hotel room you can’t leave because you’re in pajamas.

The trick? Lower the temp to 95°F when not in use, then crank it back up an hour before you soak. Your heater will work smarter, not harder. Also, embrace the wind foam—it cuts evaporation by up to 50%, which is basically magic.

The Joy Factor: Is It Worth It?

Here’s the honest part: running a hot tub is a hobby with a monthly fee. It’s like owning a slightly expensive cat that heats water. You’ll grumble about the bill until you sink in on a snowy night and the world just melts away.

I’ve had nights where I sat in mine watching the Northern Lights (okay, a neighbor’s holiday lights) and thought, “Worth every penny.” The trick is knowing the cost before you jump in—so nobody gets a cold surprise with the electric bill.

So go ahead. Buy the hot tub. Just budget for the chemicals, respect the cover, and remember: a warm soak is cheaper than therapy. Most of the time.