How much does a hot tub cost?

Inflatable: $300-$800. Portable (acrylic, 2-3 person): $3,000-$6,000. Portable (4-5 person, most popular): $4,000-$8,000. Portable (6-8 person): $6,000-$15,000. Built-in (inground): $10,000-$25,000+. Swim spa: $15,000-$40,000. Installation costs (on top of purchase): electrical: $500-$1,500. Pad/base: $200-$2,000. Delivery: $0-$500. Total installation: $1,000-$4,000. Annual operating: $600-$1,200 (electricity, chemicals, maintenance). Best value: a quality 4-5 person portable tub in the $5,000-$7,000 range from a reputable brand.

How much electricity does a hot tub use?

Monthly electricity cost: well-insulated modern tub: $30-$50/month. Older or poorly insulated tub: $50-$100/month. Annual: $360-$1,200. Factors that affect cost: insulation quality (full-foam insulation is best). Cover quality (the most important factor — a good cover prevents 80% of heat loss). Climate (colder climates cost more). Usage (more use = more heating). Temperature setting (each degree lower saves ~5%). How to minimize cost: use a high-quality cover (replace when worn). Keep temperature at 100-102F (not max 104F). Run the circulation pump on a timer. Choose a tub with full-foam insulation. Consider a tub with a heat pump (2-3x more efficient than electric heater).

How often should I change hot tub water?

Every 3-4 months (quarterly). Signs you need to change sooner: water is cloudy and chemicals cannot clear it. Strong chemical smell. Foaming that does not go away. Water feels slimy. Difficulty maintaining pH balance. The process: drain the tub (use a submersible pump: 15-30 minutes). Clean the shell with a non-abrasive cleaner. Clean or replace the filter. Refill with fresh water. Balance the chemistry (pH, alkalinity, sanitizer). Cost: $5-$15 for water per fill. Total time: 2-3 hours. Between water changes: test water 2-3 times per week. Add sanitizer (chlorine or bromine) as needed. Shock weekly or after heavy use. Clean the filter monthly.

What size hot tub do I need?

For a couple: 2-3 person tub. Compact, efficient, affordable. Good for small spaces. For a family: 4-5 person tub (most popular size). Fits a family comfortably. Room for occasional guests. Best balance of size, cost, and operating efficiency. For entertaining: 6-8 person tub. Enough room for a group. Higher operating cost. Requires more space and a stronger base. Our recommendation: buy one size larger than you think you need. A 2-person tub feels cramped with two adults. A 4-5 person tub comfortably seats 2-3 people with room to stretch. You will rarely fill it to capacity, and the extra room is worth it.

Article

Outdoor Living

Hot Tub Guide: Types, Cost & Installation

Lumberama Editorial Team, Hot Tub & Outdoor Relaxation Specialists Oct 25, 2026 10 min read

Types of Hot Tubs

Portable (acrylic shell): The most common type. Self-contained unit: shell, jets, pump, heater, controls. Sits on a pad or deck (no installation in the ground). Can be moved (with effort). Sizes: 2-person to 8+ person. Cost: $3,000-$15,000.

Inflatable: Most affordable entry point. Blow up, fill with water, plug in. Fewer jets, less insulation, shorter lifespan. Cost: $300-$800. Best for: trying out hot tub ownership, temporary use, renters.

Built-in (inground): Permanently installed in the ground or a deck. Often built alongside a pool. Custom design. Cost: $10,000-$25,000+. Best for: luxury installations, pool combos.

Swim spa: Combination hot tub and swimming area. Jet current for swimming in place. 12-20 feet long. Cost: $15,000-$40,000. Best for: those who want both a pool and hot tub in a smaller space.

Sizing

By number of people: 2-3 person: compact, fits small spaces. 5-6 feet across. Cost: $3,000-$6,000. 4-5 person: the most popular size. 7 feet across. Cost: $4,000-$8,000. 6-7 person: large, great for entertaining. 7-8 feet across. Cost: $6,000-$12,000. 8+ person: extra large, party-sized. 8+ feet across. Cost: $8,000-$15,000+.

Weight considerations: A filled hot tub weighs 3,000-6,000+ pounds. Your deck or patio must support this weight. Ground-level pad (concrete or gravel): no weight concern. Elevated deck: consult a structural engineer. Reinforce if needed.

Installation

Site preparation: Level, solid surface required. Options: concrete pad (4 inches thick, reinforced): $500-$2,000. Gravel pad (compacted): $200-$500. Existing patio or deck (verify weight capacity).

Electrical: Most hot tubs require 240V/50-amp dedicated circuit. Cost: $500-$1,500 (electrician to run a new circuit). Some smaller tubs run on standard 120V (plug and play). These heat slower and may struggle in cold weather.

Delivery: Hot tubs are delivered by truck. Need clear path from delivery point to installation site. Minimum 36-inch wide access. Crane delivery if no ground access: $500-$1,000 additional.

Total installation cost: Electrical: $500-$1,500. Pad/base: $200-$2,000. Delivery: usually included or $200-$500. Steps/accessories: $200-$500. Total: $1,000-$4,000 on top of the hot tub price.

Operating Costs

Monthly electricity: Well-insulated modern tub: $30-$50/month. Older or poorly insulated tub: $50-$100/month. Climate matters: cold climates cost more to heat. A good cover is the single most important factor (prevents heat loss).

Chemicals: $20-$40/month (chlorine or bromine, pH balancers, shock).

Water: Drain and refill every 3-4 months ($5-$15 per fill).

Annual maintenance: Filter replacement: $30-$100/year. Cover replacement: $200-$500 (every 3-5 years). Professional service (optional): $100-$200/visit.

Total annual cost: $600-$1,200/year for a well-maintained, energy-efficient tub.