The Michigan Hot Tub Buyers Guide

 

Buying a hot tub is one of those purchases that people tend to think about for a long time before they actually do it. They browse online, get overwhelmed by options and price ranges, and either end up making a rushed decision or delaying indefinitely. This hot tub buyer’s guide will help you navigate size, options, and more.

 

We’ve been selling and servicing hot tubs in southeast Michigan for years, and we’ve had this conversation thousands of times. This guide is everything we’d tell a friend who walked in and said they were thinking about buying, without the sales pressure and without skipping the parts that actually matter.

 

Start here: why do you want a hot tub?

 

Before you look at a single model or price tag, get clear on this. It changes everything about which spa is right for you.

 

• Daily therapeutic use: You have back pain, joint issues, trouble sleeping, or you’re an athlete who recovers hard. You need targeted hydrotherapy with the right jets in the right positions for your body. A lounge seat and dedicated jet systems matter more than size.
• Relaxation and decompression: You want to unwind after work, sit under the Michigan sky, and disconnect. Almost any well-built spa delivers this. Focus on water quality, ease of maintenance, and seating comfort rather than premium jet technology.
• Social and family use: You picture Friday nights with friends, Sunday mornings with family. You need capacity — open seating for 6 or 7 adults, good footwell space, and ambiance features like lighting and sound.
• All of the above: Most buyers want a combination. The key is knowing which purpose comes first so you make the right trade-offs when it comes to size, features, and budget.

 

The clearer you are about how you’ll actually use the spa, not how you imagine using it, the better decision you’ll make. Be honest with yourself.

How to choose the right size

 

Size is one of the most common mistakes buyers make, usually going too small because they’re trying to save money, then wishing they’d gone bigger once they’re actually using it.

 

Seating capacity

 

Hot tub seating is listed by maximum capacity, not comfortable capacity. A spa listed for 7 people can hold 7, but if you have 5 adults over on a regular basis, a 7-person spa starts to feel right. Here’s a practical guide:

 

Typical users	Recommended size
Solo or couple — therapy focus	2–3 person spa. Compact footprint, targeted jets, easier to maintain.
Couple + occasional guests	4–5-person spa. The sweet spot for most households.
Family or frequent entertaining	6–8 person spa. Open seating, bigger footwell, more circuit stations.
Serious therapy + multiple users	Consider a lounge model with dedicated therapy seats for each user.

 

Footprint and placement

 

Measure your space before you fall in love with a model. A 7-person spa typically runs 7’x7′ or larger. You need clearance on all sides for access and service with at least 2–3 feet. If you have a deck, confirm it can support the weight. A filled spa can weigh 4,000–6,000 pounds depending on size.

 

Jets: quality over quantity

 

This is the most misunderstood part of hot tub shopping. More jets do not mean a better spa. We’ve seen 80-jet spas that feel weak and 40-jet spas that are extraordinary. Here’s what actually matters:

 

• Pump power: The pump has to drive all those jets. A spa with 80 jets and a single 2HP pump produces a trickle at each jet. Look for the number of pumps and horsepower relative to jet count.
• Jet placement: Are the jets actually where your body needs them? Good spa design puts jets where the engineering says they belong at the neck, shoulder, mid-back, lower back, calves, feet. Some cheaper spas have jets in positions that feel like afterthoughts.
• Jet types: Rotary jets, directional jets, and focused jets serve different purposes. A good hydrotherapy spa has a mix of these targeting different muscle groups in each seat.
• Circuit therapy: The best spa lineups offer Hot Tub Circuit Therapy, which is a structured sequence of massage stations where each seat targets a different part of the body. Spending 20 minutes rotating through delivers a full-body therapy session.

Insulation: critical in Michigan

 

This matters more in Michigan than almost anywhere. A spa sitting in your backyard in January needs to work hard to stay at 104°F when it’s 10°F outside. Insulation is what determines whether your monthly electric bill is $50 or $200.

 

• Full-foam (FiberCor or similar): The gold standard. Dense foam fills the entire cabinet cavity, locking in heat and providing structural support. Caldera uses FiberCor insulation, which is four times denser than standard urethane. This is what we recommend for Michigan winters.
• Perimeter insulation: Foam lines only the cabinet walls, not the full cavity. Cheaper to manufacture, but significantly less efficient in cold climates. Fine for Florida. Not ideal for Michigan.
• Partial foam: A middle ground that still loses considerable heat through uninsulated areas. Common in mid-tier spas.

 

The energy savings from a well-insulated spa over 10 years easily exceed the price difference between a poorly insulated model and a quality one. It’s one of those places where paying more upfront pays for itself.

 

Water care: the part nobody thinks about until they own one

 

How you maintain your water is going to be part of your weekly life as a spa owner. It’s worth understanding your options before you buy.

 

Traditional chemical care

You test your water 2–3 times a week, add chlorine or bromine manually, balance pH and alkalinity, and drain and refill every 3–4 months. It works well and gives you direct control, but it takes consistent attention and there’s more room for user error.

 

Saltwater systems (FreshWater Salt System)

This is what we carry on our Caldera spas and it’s what most of our customers migrate toward once they learn how it works. A titanium cartridge generates chlorine automatically from salt at just 1,500 parts per million, which is barely detectable. The water stays crystal clear and soft for up to a full year before a drain and refill. Most owners spend 10–15 minutes a week on water care.

 

The FreshWater Salt System is the single feature most of our customers cite when they tell us they wish they’d known about it sooner. It genuinely changes the daily ownership experience.

Automated water monitoring (FreshWater IQ)

The next level up, available on Caldera’s Utopia and Paradise series. The system tests your water automatically every hour, generates chlorine from salt, and tells you exactly what adjustments it needs. The closest thing to a self-maintaining spa currently available.

 

Build quality: what to actually look at

 

When you’re standing in front of a spa, here’s what to evaluate beyond how it looks:

 

• Shell material: Acrylic is the standard for quality spas. DuraBond acrylic construction is what you want, it’s fade-resistant, durable, and maintains structural integrity over the long haul. Avoid plastic backed shells, which are cheaper and less durable.
• Cabinet: Should be weather-resistant without needing maintenance. EcoTech cabinetry (used on Caldera) combines the look of wood with the durability of engineered materials. It won’t crack, splinter, or fade in Michigan winters.
• Plumbing: Ask how the plumbing is run and whether it’s accessible for service. Spas where the plumbing is encased in spray foam are harder and more expensive to repair.
• Warranty: What’s actually covered and for how long. Shell, structure, jets, plumbing, and electrical should all be specified separately. Read the fine print. A 10-year shell warranty means nothing if major components are only covered for 1 year.
• Certifications: Look for California Energy Commission (CEC) certification, which is the most stringent energy efficiency standard in the country and a reliable indicator of build quality.

 

The most important decision: choosing the right dealer

 

We say this not to sell you on ourselves, we say it because it’s true and most buyers don’t think about it until something goes wrong.

 

A hot tub is a 10–20 year purchase. In that time, something will need service; a pump will wear, a heater will need attention, water care questions will come up. Who handles that for you matters more than almost any feature on the tub itself.

 

What to look for in a dealer

 

• In-house service department: Not contractors. Not a referral to someone else. A team of trained technicians employed by the same company that sold you the spa. This is rarer than it should be.
• Local showroom: Avoid hot tub shows, parking lot pop-ups, and big-box stores. If you can’t visit their showroom, meet their team, and sit in a running spa, walk away.
• Wet test capability: The ability to sit in a heated, running spa before you buy is invaluable. It takes 20 minutes and changes almost every buying decision. Ask before you visit.
• Track record: How long have they been in business? Do they have verifiable reviews? Have they earned any industry recognition?
• Authorized dealer status: Buying from an authorized dealer means you get the manufacturer warranty honored properly and factory-trained service technicians.

 

At Beninati, we have a full in-house service department with trained technicians, dispatch, real staff answering phones. Pool & Spa News ranked us the #1 service company in Michigan in both 2024 and 2025. When we say we’ll be there in year three, we mean it.

Red flags to watch for

 

If you see any of these, slow down and ask questions before you commit.

 

• Expos, parking lot sales, or warehouse liquidation events since these sellers won’t be around to service what they sell
• “100+ jets” with no mention of pump specifications, more jets on a weak pump equals weak jets
• Heavily discounted “last year’s model” from a brand you can’t research. If you can’t find dealer reviews or a service history, that’s a problem
• No wet test offered. If they won’t let you sit in a running spa, that tells you everything
• Vague warranty language: if they can’t hand you a written warranty document on the spot, ask why
• No local showroom or service department: who fixes it when something goes wrong?
• High-pressure tactics or same-day-only pricing: quality dealers don’t need those techniques

What the buying process should look like

Here’s the process we walk every customer through at Beninati — and what you should expect from any quality dealer:

 

Step 1	Visit the showroom — see multiple models, ask questions, understand the differences between series and brands.
Step 2	Do a wet test. Sit in the running spa you’re considering. Don’t skip this.
Step 3	Talk through installation requirements — electrical, foundation, access. Know what’s needed before delivery day.
Step 4	Review the full quote with spa, delivery, inclusions, financing options. No surprises.
Step 5	Delivery, placement, and in-home tutorial. You should leave your first day knowing how to operate and maintain your spa completely.

 

The bottom line

 

The best hot tub isn’t the one with the most jets or the lowest price. It’s the one that fits your life, your body, your space, and your budget that is backed by a dealer you can trust for the next 10-20 years.

 

If you’re in southeast Michigan and you’re serious about buying, come visit us. Our showrooms in Utica and Clinton Township have a full range of models running, our team knows this product inside and out, and we’ll take as long as you need to make sure you leave with the right answer, not just any answer.

 

That’s how we’ve done it for years. It’s why people keep coming back.