Harvia Vega Compact (1.9KW, 3.5KW)

Who this heater is for

• Small traditional saunas (indoor, insulated, wood‑lined) between 70–106 ft³ for the 1.9 kW, and up to 175 ft³ for the 3.5 kW when the build is ideal.
• Infrared + Steam “combo” saunas. This is our go‑to way to add rock steam and löyly to an IR cabin. The 1.9 kW 120V is the only 110/120V rock heater we recommend.
• Owners who value simplicity - mechanical timer and thermostat on the heater, no separate controller, quick install by an electrician.
• Spaces with tight clearances. The integrated heat shield yields the lowest safety distances we know of for an electric rock heater. That means it safely fits where other's can't.

Who should choose something else

• Rooms larger than 175 ft³, under‑insulated, or outdoors: go up in power. In Harvia, that’s typically KIP 4.5–8.0 kW for something similar, or Virta for a sleek floor-mounted heater.
• Chasing “softest” steam and big water pours: pick a larger stone bed (Harvia Spirit or Cilindro) rather than a compact heater. More stones = gentler heat and bigger steam buffer.  Trade-off is longer heat up times.
• Needing app/Wi‑Fi or remote controls: Vega Compact has knobs only. Every other Harvia model has the option for Wi-Fi enabled Xenio Controller.

Quick sizing & comparison

Why we recommend Vega Compact for IR + Steam combos

• True löyly with 120V power (1.9 kW). If your IR cabin gets you sweating but you just want to add steam and a traditional element to the space, the 1.9 kW Vega Compact is perfect.
• No controller tangle. Built‑in timer and thermostat mean no contactor box, no control cable runs, and fewer things to mount on your walls.
• Fast heat. Modest stone mass warms quickly, so you don’t wait an hour to start using your IR+steam setup.
• Safety clearances are tiny. The integrated heat shield lets you keep benches and walls closer than typical heaters, which matters in cramped IR cabins.

Operation (two knobs, done)

• Timer: up to 60 minutes on the dial. Turn to heat; the indicator light confirms when elements are on.
• Thermostat: set and forget. Start high during preheat, then back it down when the room is ready.
• Water: ladle modest pours onto the rocks (small ladles, more often). Use proper sauna stones and clean water only.

Installation notes (read this before you order)

• Hard‑wired only. Even the 120V 1.9 kW model is not plug‑in. A licensed electrician must hard‑wire it on a dedicated circuit.
• Typical electrical:
  • 1.9 kW (120V): ~16 A draw. We recommend a dedicated 20 A, 120V, single‑pole breaker with 90 °C copper conductors (AWG 14 minimum).
  • 3.5 kW (240V): ~14.4 A draw. We recommend a dedicated 20 A, 240V, two‑pole breaker with 90 °C copper conductors (AWG 14 minimum).
• No GFCI/RCD feed. Follow the manufacturer’s instructions for supply and protection type. Use copper conductors rated 90 °C within sauna walls.
• Ventilation: provide a low intake near the heater and a controllable outlet high on the opposite wall. Keep vents reasonable—oversized openings will slow heat‑up.
• Mounting height & clearances: minimum ceiling height 75". Mount low on the wall and observe the heater’s safety distances to walls, benches, and fence. Vega Compact’s clearances are among the lowest available, which is why it fits where others don’t.
• Reset after cold shipping: if the unit was stored below freezing, let it warm to room temperature and press the over‑temperature reset before first use (behind the front cover).

*Verify all electrical specs and installation requirements with your manual.

What to expect in use

• Heat‑up time: in a well‑built small room, expect ~30–45 minutes to reach typical bathing temperatures. If you're in between, the 3.5 kW will be noticeably quicker and hold heat better in the upper end of its range.
• Steam “feel”: crisp, immediate steam due to the compact stone bed. If you prefer very soft, heavy steam, step up to a larger stone capacity (Harvia Spirit or Virta).
• Stone care: use Harvia brand igneous sauna stones. Stack loosely so air moves through, keep elements covered, and re‑stack/replace crumbled stones periodically.

Vega Compact vs KIP vs Spirit, when to pick each

• Choose Vega Compact if the sauna or IR cabin is truly small, you need built‑in controls, tight clearances, and the simplest install. The 1.9 kW 120V is the only 110/120V rock heater we recommend.
• Choose Harvia Virta for small‑to‑mid rooms where clean, floor-mounted, black aesthetic is desirable (no holes in walls). Virta's deeper stone bed and higher outputs (6KW–9 kW) suit larger volumes or less‑than‑perfect builds.  
• Choose Harvia Spirit when you want a modern look and digital/external controls (including Wi‑Fi) with 'softer' (more comfortable) heat and more steam potential.  .

Specs — Harvia Vega Compact (North America)

Notes: Always follow the installation manual for wiring, clearances, and ventilation. Use only proper sauna stones, stacked loosely to keep elements covered and air moving.

Common mistakes we see (and how to avoid them)

1. Trying to plug the 1.9 kW into an outlet. It must be hard‑wired on a dedicated circuit.
2. Under‑sizing the heater. If your room has glass, tile, exterior exposure, or is taller than average, give us a call or pop into the chat.  Don't just 'size up'.  
3. Over‑packing stones. Tight stones choke airflow, trip the high‑limit, and slow heat. Stack loosely; keep elements covered but breathing.
4. Skipping ventilation. Add a low intake near the heater and a controllable high outlet across the room. Too much open venting will cool the room; balance is key.  We've seen Harvia decline warranty due to missing vents.
5. Cold‑shipped reset not pressed. If the heater saw freezing temps in transit, let it warm to room temperature and press the manual reset before first use.

Ordering tips from Sauna Marketplace

• Tell us your interior cubic feet and materials. We’ll check sizing and point out anything in your build that affects performance.
• Adding to an IR sauna? Confirm your existing model and electrical availability. The 1.9 kW is usually the sweet spot for IR combos.
• Want softer, heavier steam? We’ll steer you to the right KIP or Cilindro configuration instead.

FAQ

Will the 1.9 kW get hot enough?

All Harvia heaters have a max temperature sensor of 194°F at the temp sensor location, plenty hot for most of us! In a small, insulated, wood‑lined sauna (70–106 ft³), it reaches traditional temperatures with proper ventilation and stone stacking. If you’re on the fence, the 3.5 kW is more forgiving. 

If you want to push temps into the 190°s and beyond then HUUM is the only option in North America.  Check out a Cliff Mini or Steel Mini.

Can I use an external digital control with Vega Compact?

No. Vega Compact has built‑in mechanical controls. If you want an external/digital control or Wi‑Fi, look at Harvia units designed for external controllers (All other Harvia heaters besides the 'Wall').

Does the 1.9 kW plug in?

No. Both versions must be hard‑wired by an electrician on dedicated circuits. There’s no contactor box or remote controller—just a clean hard‑wire to the heater.

What stones should I use, and how many?

Use igneous sauna stones paired with the heater on Sauna Marketplace. Expect around 26–29 lb of stones. Stack loosely so air flows through and all elements are covered. Re‑stack/replace cracked stones periodically.

How low can I mount it?

Vega Compact is designed to mount low, which warms your feet and floor area. Follow the mounting template and minimum safety distances in the manual.

Is it safe to throw water on the rocks?

Yes—use small ladles (more often is better) and clean tap water. Never use pool/spa water, additives that aren’t labeled for saunas, or pour excessive amounts at once.

Bottom line from Ben

If you’re building a tiny traditional sauna or want to turn an infrared cabin into a real sauna with steam, the Vega Compact is the cleanest, safest way to do it. The 1.9 kW is the only 120V rock heater we stand behind; the 3.5 kW gives you more headroom when the room is on the larger side. If your space is bigger or you want that deep, soft steam feel, jump to a KIP or Virta. Otherwise, keep it simple—mount the Vega Compact low, have a pro wire it, load 29 pounds of proper stones, and enjoy.