Hudson Bay Spas Hudson Bay HB29 6-Person Hot Tub vs Hudson Bay Spas Hudson Bay HB31 3-Person Hot Tub: Spec Comparison
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This hudson bay spas hudson bay hb29 6 person hot tub vs hudson bay hb31 3 comparison highlights two acrylic spas with identical controls and finishes. Both models feature Sterling interiors, Mocha cabinets, and Balboa digital control panels. They share multi-layered fiberglass reinforcement and matching lighting. The main difference lies in their footprint and seating capacity. The HB29 offers a larger square shape for six people, while the HB31 provides a compact square design for three.
Key differences
| Aspect | Hudson Bay 6-Person 29-Jet Acrylic Hot Tub | Hudson Bay 3-Person 31-Jet Acrylic Spa |
|---|---|---|
| Seating Capacity | 6-person | 3-person |
| Jet Count | 29 | 31 |
| Dimensions | 80 x 80 x 35 inches | 72 x 72 x 35 inches |
| Weight | 655 pounds | 645 pounds |
Which one should you choose?
Choose Hudson Bay 6-Person 29-Jet Acrylic Hot Tub if
- You need extra seating for a medium-sized family or guests.
- You have a larger backyard space to accommodate an 80-inch square footprint.
- You prefer a spa with fewer jets for a gentler hydrotherapy experience.
Choose Hudson Bay 3-Person 31-Jet Acrylic Spa if
- You have limited outdoor space and need a compact 72-inch square design.
- You want the highest jet density relative to the number of seats.
- You prefer a slightly lighter unit that is easier to position.
Verdict: Choose the HB29 if you prioritize seating capacity and have the space for a larger footprint. The HB31 is the better fit if you need a compact spa with a higher jet-to-seat ratio. Both models share the same durable construction and control interface.
Size, Jets, and Capacity
Seating capacity
The Hudson Bay HB29 is rated for six people, making it suitable for medium-sized families or those who frequently host guests. The Hudson Bay HB31 is designed for three occupants. If you often soak with others, the larger model offers more room. The smaller unit is better for couples or solo use. Your choice depends on how many users will share the tub regularly. More seats mean more space but also a larger footprint in your yard.
Footprint dimensions
Size matters for installation. The HB29 measures 80 by 80 inches, requiring a square space of at least that size. The HB31 is 72 by 72 inches, saving eight inches on each side. This difference can be critical if your deck or patio has tight clearance limits. Both models share the same height of 35 inches. You must measure your available area carefully before deciding. The smaller footprint of the HB31 makes it easier to fit in compact outdoor spaces.
Jet count
Jet quantity affects water circulation. The HB31 includes 31 therapy jets, while the HB29 has 29 jets. This means the smaller tub offers slightly more jet density per square foot of interior space. Both models use the same Balboa control panel to manage these jets. The difference is minimal in practice, but the HB31 provides a marginally higher number of nozzles for hydrotherapy. You get more targeted water flow in the compact model.
Weight and weight
Weight impacts floor loading requirements. The HB29 weighs 655 pounds empty. The HB31 weighs 645 pounds empty. Both are heavy, but the larger six-person model is slightly heavier despite having fewer jets. This difference is small, but both units require a solid, level surface capable of supporting the weight of the spa plus water and users. Ensure your deck or foundation can handle these loads safely.
Shared features
Both spas share several key specifications. They both feature Sterling acrylic interiors and Mocha cabinets. Each model includes a locking deluxe cover for safety and insulation. The multi-layered fiberglass reinforcement is present in both, ensuring strength. You also get the same multi-colored underwater mood light and backlit waterfall in each unit. The comfort cushion headrests are identical. These shared elements mean you are getting the same build quality and aesthetic regardless of the size you choose.
Which Hudson Bay Hot Tub Fits You
Small households or tight spaces
The HB31 measures 72 by 72 inches, fitting smaller patios better. It weighs 645 pounds, making it slightly lighter than the larger model. You get 31 therapy jets for strong hydrotherapy in a compact footprint. The three-person capacity suits couples or solo users who want a dedicated relaxation zone without requiring extensive deck space.
Families hosting guests regularly
The HB29 offers a spacious 80 by 80 inch footprint and seats six people comfortably. This size accommodates medium-sized families and frequent visitors. You gain ample room for group socializing while still enjoying 29 therapy jets. The larger dimensions provide more legroom and seating options compared to the smaller three-person alternative.
Users prioritizing jet density
The HB31 includes 31 therapy jets for a three-person capacity. This creates a higher jet-to-person ratio, potentially offering more targeted massage per occupant. You receive the same Balboa control panel and Sterling acrylic interior as the larger model. If you prefer intense hydrotherapy coverage in a smaller tub, this configuration maximizes jet density effectively.
The products compared
Hudson Bay 6-Person 29-Jet Acrylic Hot Tub
Best for: families hosting frequent guests
- Seating Capacity
- 6-person
- Jet Count
- 29
- Jet Type
- Therapy jets
- Material
- Acrylic
- Dimensions
- 80 x 80 x 35 inches
- Control Type
- Balboa control panel
View on Amazon: Hudson Bay 6-Person 29-Jet Acrylic Hot Tub Affiliate link
The Hudson Bay HB29 is a 6-person hot tub measuring 80 by 80 inches. It features 29 therapy jets and a Sterling acrylic interior. The Balboa control panel allows precise temperature and jet adjustments. A multi-colored mood light and backlit waterfall add visual appeal. This unit suits medium-sized families who frequently host guests for relaxation and hydrotherapy.
Pros
- Six-person seating capacity for larger groups
- 29 therapy jets for comprehensive hydrotherapy
- Sterling acrylic interior with fiberglass reinforcement
- Intuitive Balboa digital control panel
Cons
- Heavier build at 655 pounds
- Larger footprint requires more space
- No app or remote control mentioned
Good fit if
- You need seating for six people
- You want a durable acrylic shell
- You prefer digital jet controls
Skip if
- You have limited outdoor space
- You cannot support a 655-pound unit
- You prefer a smaller three-person model
Verdict: Hudson Bay HB29 6-Person Acrylic Spa offers ample seating and robust jet coverage for social soaking. It fits buyers who prioritize capacity and durable materials over compact dimensions.
Hudson Bay 3-Person 31-Jet Acrylic Spa
Best for: Small spaces and 3-person seating needs
- Seating Capacity
- 3-person
- Jet Count
- 31
- Jet Type
- Therapy jets
- Material
- Acrylic
- Dimensions
- 72 x 72 x 35 inches
- Control Type
- Balboa control panel
View on Amazon: Hudson Bay 3-Person 31-Jet Acrylic Spa Affiliate link
The Hudson Bay HB31 is a compact 3-person hot tub designed for smaller spaces. It features 31 therapy jets and a sterling acrylic interior. The 72 x 72 x 35 inch footprint fits tight areas. You get digital balboa controls for easy management. Mocha cabinets and mood lighting add style. This model suits couples or solo users seeking hydrotherapy without a large installation.
Pros
- 31 therapy jets provide targeted hydrotherapy
- Sterling acrylic interior ensures durability
- Digital balboa control panel offers precise settings
- Compact 72 x 72 inch footprint fits small spaces
Cons
- Limited to 3-person seating capacity
- No smart app or remote control mentioned
- Heavier build at 645 pounds requires sturdy support
Good fit if
- You need a hot tub for two people
- You have limited deck or patio space
- You prefer manual digital controls over smartphone apps
Skip if
- You require seating for four or more people
- You want a large 72 x 72 inch tub with fewer jets
- You need a lightweight unit for easy relocation
Verdict: Hudson Bay HB31 3-Person Hot Tub fits couples or solo users with limited space who want 31 therapy jets in a compact 72 x 72 inch footprint.
Specifications side by side
| Spec | Hudson Bay 6-Person 29-Jet Acrylic Hot Tub | Hudson Bay 3-Person 31-Jet Acrylic Spa |
|---|---|---|
| Seating Capacity | 6-person | 3-person |
| Jet Count | 29 | 31 |
| Jet Type | Therapy jets | Therapy jets |
| Material | Acrylic | Acrylic |
| Dimensions | 80 x 80 x 35 inches | 72 x 72 x 35 inches |
| Control Type | Balboa control panel | Balboa control panel |
| Use | Backyard, Relaxation, Hydrotherapy | Backyard, Relaxation, Hydrotherapy |
| Weight | 655 pounds | 645 pounds |
| Color | Sterling | Sterling |
| Model | HB29 | HB31 |
Frequently asked questions
How much larger is the Hudson Bay HB29 compared to the HB31?
The HB29 measures 80 by 80 inches, while the HB31 is 72 by 72 inches. This gives the larger model an extra eight inches of width and length. Both units share the same 35-inch height, so the HB29 provides a wider footprint for more seating space.
Do these hot tubs use the same control system?
Yes, both the HB29 and HB31 feature digital controls. This allows you to manage temperature and jet settings with precision. The consistent interface means switching between models does not require learning a new control layout or navigating different button placements.
What is the weight difference between the two spas?
The HB29 weighs 655 pounds, and the HB31 weighs 645 pounds. The difference is only ten pounds. This minor variation suggests similar structural density, likely due to their shared acrylic construction and multi-layered fiberglass reinforcement, despite the size disparity.
Are the jet types the same for both models?
Both spas are equipped with therapy jets. These jets are designed to provide hydrotherapy benefits for relaxation and muscle relief. While the HB29 has 29 jets and the HB31 has 31, the core technology and purpose of the jets remain identical across both units.
Can I use these hot tubs for hydrotherapy?
Yes, both models are explicitly listed for hydrotherapy use. The HB29 offers robust jet coverage for social soaking, while the HB31 delivers strong hydrotherapy in a compact space. You can use either unit to target muscle tension through consistent water pressure and massage.
Do both spas have the same exterior color?
Yes, both the HB29 and HB31 come in Sterling color. This consistent finish ensures they match aesthetically if you are comparing options for your backyard. The matching exterior allows for a cohesive look regardless of whether you choose the six-person or three-person capacity.
Which model is better for a small patio?
The HB31 is better for small patios. Its 72 by 72-inch footprint fits tighter spaces more easily than the 80 by 80-inch HB29. You still get 31 therapy jets and digital controls, ensuring you do not sacrifice performance for the reduced dimensions.

