What Size Breaker Does an 8 kW Sauna Heater Need?
Last updated 2026-10-07
Of the 18 saunas with an 8 kW heater in the InHouse Wellness Verified Sauna Database, the manufacturers of 14 state a 240 V, 40 A circuit for the heater; for the other 4, the manufacturer sources we've verified describe no heater circuit.
Each row quotes the manufacturer's own words, with its grade, source and the date we verified it. InHouse Wellness does not calculate a breaker or wire size: those depend on your local code and your electrician.
11 of the 18 listed models are from Salus.
| Model | What the manufacturer states about the circuit | Grade · source · verified |
|---|---|---|
| Almost Heaven Patterson Indoor Sauna, 6 Person | Not stated in the manufacturer sources we've verified | — |
| Golden Designs Copenhagen Traditional Sauna, 3 Person | …“Electrical service: 240V / 40AMP (Stove) and 120V / 15AMP (Control for Lights and Music)”… | Listed · manufacturer page · 2026-10-07 |
| Golden Designs Drammen Outdoor-Indoor Traditional Sauna, 3 Person | …“Electrical service: 240V / 40AMP (Stove) and 120V / 15AMP (Control for Lights and Music)”… | Listed · manufacturer page · 2026-10-07 |
| Golden Designs Kaarina Barn Outdoor Traditional Sauna, 6 Person | …“Electrical service: 240V / 40AMP (Stove) and 120V / 15AMP (Control for Lights and Music)”… | Listed · manufacturer page · 2026-10-07 |
| Golden Designs Kaskinen Barn Hybrid Outdoor Sauna, 6 Person | …“Electrical service: 240V / 40AMP (Stove & Full Spectrum)”…“Owner’s Manual SAUNA IS FOR OUTDOOR/INDOOR USE Dedicated 240VAC 40AMP Circuit Required (8kW Heater)”… | Listed · manufacturer page · 2026-10-07Documented · manual, p. 1 · 2026-09-28 |
| Golden Designs Toledo Hybrid Sauna Full Spectrum and Harvia Traditional Stove, 6 Person | …“Electrical service: 240V / 40 AMP (Stove & Full Spectrum)”…“Owner’s Manual SAUNA IS FOR INDOOR/OUTDOOR USE 240VAC 30AMP/40AMP Circuit Required”… | Listed · manufacturer page · 2026-10-07Documented · manual, p. 1 · 2026-09-28 |
| Golden Designs Visby Outdoor-Indoor PureTech Hybrid Full Spectrum Sauna, 3 Person | …“Electrical service: 240V / 40AMP (Stove & Full Spectrum)”… | Listed · manufacturer page · 2026-10-07 |
| Salus Charisma Traditional Indoor Sauna, 6 Person | Not stated in the manufacturer sources we've verified | — |
| Salus Elevation Hybrid Outdoor Sauna, 6 Person | “Electrical service: 240V / 40AMP (Stove & Full Spectrum)”…“Owner’s Manual SAUNA IS FOR INDOOR/OUTDOOR USE APEX - 240VAC 30AMP Circuit Required ELEVATION - 240VAC 40AMP Circuit”… | Listed · manufacturer page · 2026-09-27Documented · manual, p. 1 · 2026-09-27 |
| Salus Fierce Traditional Indoor Sauna, 3 Person | …“Electrical service: 240V / 40AMP (8KW Stove) and 120V / 15AMP (Control for Lights and Music)”… | Listed · manufacturer page · 2026-09-27 |
| Salus Flora Traditional Outdoor Sauna, 3 Person | Not stated in the manufacturer sources we've verifiedCircuit amperage: Not yet in our verified record; see the manufacturer's manual (manual, p. 26) | — |
| Salus Grand Ally Traditional Indoor Sauna, 6 Person | Not stated in the manufacturer sources we've verified | — |
| Salus Grand Renew Hybrid Outdoor Sauna, 6 Person | …“Electrical service: 40AMP / 240V for 8kw Heater”… | Listed · manufacturer page · 2026-09-27 |
| Salus Harmony Hybrid Indoor Sauna, 6 Person | …“Electrical service: 240V / 40AMP (Stove & Full Spectrum)”… | Listed · manufacturer page · 2026-09-27 |
| Salus Restore Traditional Indoor Sauna, 6 Person | …“Electrical service: 240V / 40AMP (Stove) and 120V / 15AMP (Control for Lights and Music)”… | Listed · manufacturer page · 2026-09-27 |
| Salus Revive II Traditional Indoor/Outdoor Sauna, 3 Person | …“Electrical service: 240V / 40AMP (Stove) and 120V / 15AMP (Control for Lights and Music)”… | Listed · manufacturer page · 2026-09-27 |
| Salus Solara Traditional Outdoor Sauna, 6 Person | …“Electrical service: 240V / 40AMP (Stove) and 120V / 15AMP (Control for Lights and Music)”… | Listed · manufacturer page · 2026-09-27 |
| Salus Solis Traditional Outdoor Sauna, 3 Person | …“Electrical service: 240V / 40AMP (Stove) and 120V / 15AMP (Control for Lights and Music)”… | Listed · manufacturer page · 2026-09-27 |
Local electrical codes vary. The manufacturer's installation manual and your local code govern, and a licensed electrician sizes and installs the circuit.
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