Everything an Electric Sauna Needs, in One Box

An electric heater is the most popular way to heat a home sauna for a reason: flip a switch (or tap a phone app), wait 30–45 minutes, and you're at 170–185°F with no fuel to store, no ash to sweep, and no chimney to maintain. But the heater alone won't get you there. You need stones in the basket, a controller to hold temperature, and the right 240V circuit feeding it.

That's what these packages handle. Each Complete Package bundles the electric heater, a pre-measured load of olivine diabase stones, and the matching controller — with WiFi control included on most models — sized to work together the day it arrives. This is the electric-only cut of our broader heater package hub; if you want wood-burning kits in the mix, start there instead.

240V, a Dedicated Circuit, and Why It Comes First

Almost every heater in this collection runs on 240V single-phase — the same voltage as your electric dryer or range. The catch is that it needs its own dedicated circuit on its own breaker, not a shared one and not a plug. Amperage scales with wattage: a 6kW heater pulls enough current to want a 30A circuit, a 9kW unit needs a 40A circuit, and a 10.5kW heater like the HUUM STEEL 10.5kW sits near the top of what a residential single-phase panel handles before you're looking at a sub-panel. The big commercial units — the Harvia Club 12kW and the HUUM HIVE 15kW and 18kW — typically move to three-phase power.

None of this is a DIY job above a small plug-in unit. A licensed electrician has to confirm the breaker size, run the correct wire gauge, and verify your panel has the headroom — and they'll do it for your specific home, not a generic spec sheet. Our guide to sauna electrical requirements walks through the panel-load math you'll want to run before you get a quote. Settle the circuit before you settle the heater location, especially outdoors.

Controllers and WiFi: What You're Actually Getting

The controller is the part buyers most often forget when they price a bare heater. Every package here includes the right one. Harvia's external packages use the Xenio digital controller; the Virta Combi steamer models need the controller that runs the water reservoir separately from the dry heat. Every HUUM heater requires the separate UKU controller, which is built into the HUUM bundles. Saunum heaters ship with their own integrated control.

WiFi control is included on most electric packages in this collection, which means you can set temperature, run a timer, and schedule recurring sessions from the brand's phone app — so the sauna is at temperature by the time you walk out to it. The handful of Harvia KIP built-in models keep it analog with a simple dial on the unit, which is the cheapest, most maintenance-free path if you don't care about app control. If app control is the priority, cross-shop the full WiFi-enabled heater selection.

Stone Capacity — The Spec That Decides Steam Quality

More stones means more thermal mass, which means softer, longer-lasting löyly when you pour water across them instead of a sharp, dry blast that fades fast. This is where the brands separate. Harvia's wall-mounted KIP holds about 50 lbs; the Virta steps up to 150 lbs and the Cilindro column to 264 lbs. HUUM goes heavier still — the HUUM CLIFF 6kW carries 165 lbs in a slim column, and the floor-standing HIVE 12kW holds up to 595 lbs, the most we stock.

The packages ship the stones pre-measured to fill the specific heater's basket, so you're not guessing at quantity. Olivine diabase is the rock to use — split-face volcanic stone that holds heat and shrugs off the thermal cycling that cracks cheap landscape rocks. Need to top up down the road? Grab more from our olivine sauna stones.

Sizing the Wattage to Your Room

One kilowatt per 50 cubic feet of interior is the rule. Measure length times width times height in feet, divide by 50, and round up for a glass door or a cold-climate outdoor build. Rough picks from this collection:

• 100–200 cu ft: a 3.5–4.5kW package — HUUM CLIFF Mini 3.5kW or Harvia KIP 4.5kW
• 200–350 cu ft: 6kW — Harvia Virta 6kW or HUUM DROP 6kW
• 300–425 cu ft: 7.5–8kW — HUUM DROP 7.5kW or Harvia Virta 8kW
• 350–500 cu ft: 9kW — Harvia Virta 9kW or HUUM CLIFF 9kW
• 500–700 cu ft: 10.5kW — Harvia Cilindro 10.5kW or HUUM STEEL 10.5kW
• 700+ cu ft: Harvia Club 12kW or HUUM HIVE 12kW–18kW

If you'd rather assemble your own setup from a bare heater and choose the controller and stones yourself, the parent electric sauna heater collection has every model unbundled. And if you're still weighing brands, the design-driven Saunum lineup brings a climate equalizer that evens out the temperature between the lower bench and the ceiling — worth a look if you've ever sat in a sauna with hot shoulders and cold feet.

Wall-Mounted vs. Floor-Standing in This Collection

The form factor changes more than where the heater bolts. Wall-mounted units — most of the Harvia KIP and Virta packages and the slim HUUM DROP and CLIFF — free up bench and floor space, heat fast, and recover quickly, which makes them the right call for tight indoor rooms. Floor-standing units like the HUUM HIVE carry the deepest stone baskets in the lineup, and that thermal mass is what produces the softest, steamiest löyly. If floor space is the constraint, go wall-mounted; if steam quality is the priority and you have the room, the floor models earn their footprint.

One more practical note for outdoor builds: an electric heater is fine outdoors as long as it sits inside an enclosed, ventilated sauna room with proper clearances — the heater doesn't go out in the open. What changes outdoors is the run to the panel. A detached sauna often means trenching conduit across the yard, heavier-gauge wire for voltage drop, and sometimes a sub-panel, which is exactly why the electrician quote should come before you pick the sauna's location.

What You Provide

The package covers the heater, stones, controller, and WiFi. You provide the enclosed sauna room itself, the dedicated 240V circuit installed by your electrician, and proper clearances and ventilation per the heater's spec sheet. Most of these ship curbside freight, fully insured. Not sure which wattage your room calls for? Call us before you buy — getting the kW right the first time is the difference between a sauna that hits temperature in 40 minutes and one that never quite gets there.