Picking an electric sauna heater for a home build comes down to two things: which brand fits the way you want the room to feel, and which kW handles the cubic footage. We carry three brands - Homecraft (Canadian-made), HUUM (Estonian, design-forward), and Harvia (Finnish, traditional). Models on the page run from 4.5 kW for a small home sauna up to 15 kW for the largest residential builds, all on standard 240V single-phase power.
Electric Residential Sauna Heaters
Electric Residential Heaters
The first decision: which brand fits the build.
Homecraft is our Canadian-made line, built for over 35 years in 100% stainless steel with a protected element chamber. The default if you want parts and service running through Canadian channels rather than across the Atlantic. Homecraft Revive (6, 7.5, 9 kW, wall-mounted) ships with the TKE2-2 digital controller already in the box, so there's nothing extra to budget for. Homecraft Revive Slim (5 and 6 kW) fits tighter spaces with a 13.5 x 8 x 36 inch footprint. Homecraft Apex (10, 12, 15 kW) is the largest 240V single-phase residential heater on the page, sized for rooms up to 900 cubic feet.
HUUM is Estonian, design-forward, and carries the heaviest stone load on the page for its footprint. HUUM Drop is wall-mounted in 4.5, 6, 7.5, and 9 kW; it holds 55 kg of stone in a teardrop body that won the Red Dot Design Award in 2015. HUUM Hive Mini is the floor-standing version with a heavier stone capacity for mid-size rooms. Both need the UKU controller, sold separately - budget for it.
Harvia KIP is Finnish, traditional, and the simplest install on the page. KIP45, KIP60, and KIP80B (4.5, 6, and 8 kW) are wall-mounted with built-in time and temperature controls. No separate controller to buy. The "no fuss" pick.
What's included, what isn't.
Two of the heaters here ship ready to run - Harvia KIP has built-in controls, and Homecraft Revive includes the TKE2-2. The other three (HUUM Drop, HUUM Hive Mini, Homecraft Apex) need a separate controller, which adds to the project cost in a way that's easy to miss when comparing prices. Stones are sold separately on every model - see our sauna rocks page for the right size and quantity. WiFi and app control is available through the UKU WiFi controller (HUUM) and as an upgrade to the TKE2-2 (Homecraft). Harvia KIP doesn't offer it. For sizing, the sauna heater sizing chart on the parent page covers kW-to-room-volume across the full range. If you're putting the whole sauna together from scratch, our DIY sauna kits bundle the lumber, doors, ventilation, and trim that go around the heater.
Frequently Asked Questions:
What size electric sauna heater do I need for my home sauna?
Plan for 1 kW per 45-50 cubic feet of insulated space. A 245 cubic foot room (5 x 7 with a 7 ft ceiling) lands in 6 kW territory; glass walls or ceilings above 7 feet push you up a size. The full sizing chart with model-by-model room ranges is on the sauna heaters page.
What electrical requirements does a home sauna heater have?
240V single-phase on a dedicated circuit, hardwired by a licensed electrician. Breakers run 30A for the smallest 4.5 kW models up to 60A or higher for the 12-15 kW Apex, with wire gauge sized to match. Each product page lists the exact breaker, wire gauge, and clearance specs your electrician will need.
Is there a 110V or 120V residential sauna heater?
Not for any real home sauna. A standard 120V household circuit caps wattage below what a useful sauna needs to heat. Plan on 240V from the start - it's standard for every heater in our residential lineup.
How much does it cost to run a residential sauna heater per session?
Roughly $0.80 to $1.10 per session for a 6 kW heater at typical Canadian electricity rates. That assumes one hour at full draw (heat-up plus bathing) at $0.13-$0.18 per kWh, which covers most provinces. Quebec is cheaper, Ontario varies by time-of-use plan. Better-insulated rooms hold heat longer and cost less per session.
Do I need a separate controller, or is one included?
Depends on the model. Harvia KIP has built-in controls. Homecraft Revive ships with the TKE2-2 in the box. HUUM Drop, HUUM Hive Mini, and Homecraft Apex all need a controller bought separately - the UKU for HUUM, the TKE2-2 for Apex. Worth confirming when you're pricing the project.
Is it safe to install a sauna heater in a basement or bathroom?
Yes, both work for a home sauna with proper construction. The room needs a vapor barrier, sauna ventilation for fresh-air intake and exhaust, and the heater hardwired by a licensed electrician on a dedicated circuit. All three brands include overheat protection. Clearance specs vary by heater - the Homecraft Revive Slim drops to 1 inch with the optional heat shield, which matters in tight basement framing.