What electrical service does a swim spa need?
What kind of power do I need to run for a swim spa?
Pro Answer
Nearly all swim spas need hard-wired 240V service. Typical requirements:
- 50-60 amp dedicated circuit for a single-zone model, sized to the manufacturer specification for that exact unit.
- A GFCI-protected disconnect mounted at least 5 ft from the water and within sight of the equipment, which is standard electrical code for spa installations.
- Two circuits on some dual-zone or dual-heater models, since the swim side and hot side each have their own heater and pumps.
Plug-and-play 120V swim spas essentially do not exist; a 120V heater cannot keep a 1,500+ gallon tank at temperature. Get the electrical specification sheet for the specific model before you buy and have an electrician confirm your panel has capacity. Electrical work commonly runs $1,200-$3,500 depending on distance from the panel and whether trenching is required.
Answered on August 12, 2026
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Disclaimer: Answers are general swim spa guidance and may not apply to your specific model, installation, or local code requirements. Always consult a qualified professional for installation and major repairs.