Scandia Electric Ultra Sauna Heater - Large
Scandia Electric Ultra Sauna Heater — Large | 12–18 kW Premium Electric Heat
- 12.0–18.0 kW output for saunas up to 600+ cubic feet — large home & commercial saunas
- Premium stainless steel Ultra construction — built for decades of daily residential & spa use
- Rock-ready for authentic löyly steam — no gas line needed, just a 240V circuit
- Made in the USA since 1964 — CSA-certified, trusted by wellness professionals nationwide
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What's Included
Installation Requirements
Warranty & Support
Free Shipping
4-9 business days delivery
30-Day Returns
Risk-free guarantee
FDA Registered
Professional-grade device
Expert Approved
Used by professionals
Ultra-Grade Electric Heat
Scandia's Ultra line sets the standard for premium electric sauna heating. The Large model's 12–18 kW output delivers rapid, even heat distribution throughout big sauna rooms — consistent from your first session to your thousandth.
Premium Stainless Steel Build
Heavy-gauge stainless steel construction engineered for the rigors of daily commercial and residential use. The Ultra line resists corrosion, heat stress, and wear — built to outlast cheaper alternatives by decades.
Authentic Löyly Steam
The rock cradle holds sauna stones at optimal position for maximum heat absorption. Once rocks reach full temperature, ladle water over them for authentic Finnish löyly steam — the defining element of a true sauna session.
Precision kW Sizing
The Large model spans 12.0 to 18.0 kW, letting you match exact heat output to your sauna room size, ceiling height, and wall construction. Right-sized heating means faster heat-up and lower energy waste every session.
18kW
Max Output
600+
Max Cu Ft Coverage
200°F
Max Temperature
1964
USA-Made Since
What Your Body Will Feel After One Week
Experience the difference of professional-grade recovery technology
No Gas Line Needed
Electric installation is simpler than gas — no gas supply line, no combustion, no licensed gas technician. All you need is a dedicated 240V circuit from your licensed electrician.
Precise Temperature Control
Electric heaters deliver consistent, accurate temperature control session after session. Set your preferred heat level and the Ultra maintains it reliably — no combustion variability.
Authentic Löyly Steam
Pour water over fully heated rocks for bursts of authentic Finnish löyly steam. It's the hallmark of a real sauna experience — and the Scandia Ultra's rock cradle is engineered for exactly this.
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How the Scandia Electric Ultra Heater Works
Professional recovery therapy in three simple steps
Electric Heating Elements
High-efficiency electric elements convert 240V power into intense, consistent heat. The stainless steel housing distributes warmth evenly throughout your sauna room from floor to ceiling.
Rock Heating & Löyly Steam
Sauna rocks in the cradle absorb and store extreme heat. Once fully heated (25–35 minutes), ladle water over the rocks to create authentic Finnish löyly steam bursts throughout your session.
Precise Temperature Control
The precision thermostat lets you dial in your exact target temperature. The electric elements cycle automatically to maintain your chosen heat level with consistent, reliable accuracy.
Scandia Electric Ultra vs. Budget Electric Sauna Heaters
See why premium construction and proper kW output matter for a serious sauna experience
| Scandia Electric Ultra |
Winner
Scandia Electric Ultra Sauna Heater - Large
|
Budget Electric Heaters |
|---|---|---|
| Construction | ✓ Premium Stainless Steel | Basic Steel / Aluminum |
| Max kW Output | 12.0–18.0 kW (Large) | 6–9 kW Typical |
| Sauna Coverage | Up to 600+ Cubic Feet | Up to 200–250 Cubic Feet |
| Rock Compatibility | ✓ Full Löyly Capable | Limited / Minimal Rocks |
| Brand Heritage | Made in USA Since 1964 | Imported / Unknown Origin |
| Expected Lifespan | ✓ Commercial-Grade Decades | 3–5 Years Typical |
| Warranty | Manufacturer Warranty | 1-Year or Less |
Frequently Asked Questions
Everything you need to know about the Scandia Electric Ultra Sauna Heater - Large
The Large model (12–18 kW) is designed for saunas up to approximately 600+ cubic feet. A general sizing guideline is 1 kW per 45 cubic feet of sauna space. For rooms with glass walls, exterior-facing surfaces, or ceilings above 7 feet, size toward the higher kW end to ensure adequate heat output.
The Large model requires a dedicated 240V electrical circuit with appropriate breaker size and wire gauge for your selected kW rating. Installation must be performed by a licensed electrician per local building codes. Refer to the installation manual for specific amperage, breaker sizing, and clearance requirements.
Absolutely. The Scandia Electric Ultra includes a rock cradle designed for authentic löyly steam. Once rocks have reached full temperature (typically 25–35 minutes after start), ladle water over them for bursts of invigorating Finnish steam. It's one of the key advantages of this heater over models that don't support rocks.
Both deliver authentic sauna heat and löyly steam. The Electric Ultra is easier to install — just a 240V circuit, no gas line or combustion venting required. It also offers more precise temperature control. Gas heaters typically heat up faster and cost less to operate where gas rates are low. The right choice depends on your property's fuel access and installation setup.
The Large (12–18 kW) is designed for saunas from roughly 350 to 600+ cubic feet. Smaller Scandia Electric Ultra models cover saunas under 350 cubic feet. Choose the Large if your sauna room is spacious, has high ceilings, or includes heat-demanding features like glass walls or exterior-facing construction.
Your Recovery, Backed by Our Guarantee
The Scandia Electric Ultra Sauna Heater - Large ships free with full freight protection. Our sauna specialists are available to help you select the right kW model and plan your installation. Call (612) 360-2490 for expert guidance.

Scandia Electric Ultra Sauna Heater - Large














