An electric sauna heater is the one part of a home sauna where the safety listing is not a formality. It draws roughly 17 to 38 amps, sits in a hot wooden room, and is wired permanently into your house. Before you compare features, check whether the listing states a UL, ETL or CSA listing, because your electrician or inspector may.
This roundup covers six electric heaters for traditional saunas sold on Amazon, ranked on what each listing states, with the room size and circuit each one needs.
This article is informational and is not medical advice. Do not use a sauna after alcohol, when pregnant, or with a heart condition or low blood pressure without asking a clinician first. See our Medical Disclaimer.
Chillveda earns a commission when you buy through links on this page, at no extra cost to you. As an Amazon Associate I earn from qualifying purchases. Affiliate disclosure.
Quick picks
-
1
Finlandia FLB-80 / Harvia KIP-80B Electric Sauna Chill Score 9.6/10Check price on AmazonA full size 8kW heater from a long established maker that states UL and ETL listing, the combination most heaters on Amazon do not offer.
-
2
Finlandia FLB-60 Electric Sauna Heater, 6kW Chill Score 9.6/10Check price on AmazonThe 6kW version of the Finlandia, for smaller rooms, with the same UL and ETL statement and built in controls.
-
3
Mxmoonant 9kW Electric Sauna Heater, 220V Chill Score 9.6/10Check price on AmazonThe only budget heater here that states an ETL listing for the model, at less than half the price of the Finlandias.
-
4
VEVOR 6kW Electric Sauna Heater, 220 to 240V Chill Score 9.5/10Check price on AmazonA very low priced 6kW heater with a reasonable record, and no safety listing stated.
-
5
Harvia KIP 4.5kW Electric Sauna Heater Chill Score 9.4/10Check price on AmazonA small room heater from Harvia with built in controls and stones included, but no safety listing on this listing.
-
6
VEVOR 2kW 120V Electric Sauna Heater Chill Score 9.3/10Check price on AmazonThe only 120V heater here, for very small rooms, whose current draw still needs a dedicated circuit.
What we picked for home recovery
A full size 8kW heater from a long established maker that states UL and ETL listing, the combination most heaters on Amazon do not offer.
Pros & ConsViewHide
Pros
- States UL and ETL listing
- 8kW for rooms of 250 to 425 cubic feet
- Built in controls with a 60 minute timer, thermostat and 1 to 8 hour preset clock
- Stainless steel elements and large rock capacity
Cons
- Needs a 240V circuit at about 33 amps
- No warranty term on the listing
- At the top of this price range
- The listing does not say whether stones are included
The 6kW version of the Finlandia, for smaller rooms, with the same UL and ETL statement and built in controls.
Pros & ConsViewHide
Pros
- States UL and ETL listing
- 6kW for rooms of 170 to 300 cubic feet
- Built in controls with timer, thermostat and preset clock
Cons
- Needs a 240V circuit at 25 amps
- No warranty term on the listing
- Costs nearly as much as the 8kW model
- The listing does not say whether stones are included
The only budget heater here that states an ETL listing for the model, at less than half the price of the Finlandias.
Pros & ConsViewHide
Pros
- States that this model is ETL certified
- 9kW for rooms of 265 to 460 cubic feet
- Built in digital control
- Less than half the price of the Finlandia heaters
Cons
- No plug, must be hardwired
- Stones not included, 30 to 40 lb needed
- No warranty term on the listing
A very low priced 6kW heater with a reasonable record, and no safety listing stated.
Pros & ConsViewHide
Pros
- A fraction of the price of listed heaters
- 6kW for rooms of 176 to 318 cubic feet
- Knob controls with a 3 hour timer
Cons
- No UL, ETL or CSA listing stated
- Stones not included, 33 lb needed
- No warranty term on the listing
A small room heater from Harvia with built in controls and stones included, but no safety listing on this listing.
Pros & ConsViewHide
Pros
- 4.5kW for small rooms of 106 to 212 cubic feet
- States its current draw: 18.8 amps
- Built in controls
- Sauna stones included
Cons
- This listing states no safety listing, though a Finlandia listing says all Harvia heaters are UL and ETL listed
- No warranty term on the listing
- High price for 4.5kW
The only 120V heater here, for very small rooms, whose current draw still needs a dedicated circuit.
Pros & ConsViewHide
Pros
- Runs on 120V, so no 240V circuit
- Rooms of 53 to 88 cubic feet
- Up to 230 degrees F with a 3 hour timer
- Low price
Cons
- 2kW at 120V is about 16.7 amps, more than a standard circuit should carry continuously
- Stones not included
- No UL, ETL or CSA listing stated
More to compare
Sauna Rocks Stones for Sauna Heater in Steam RoomCheck price on Amazon
VEVOR Sauna HeaterCheck price on Amazon
1500W Portable Dry Hot Air Heater for Sauna TentCheck price on Amazon
Harvia Saunas Rocks for Electric HeaterCheck price on Amazon
Size the heater to the room
Heaters are rated by the volume of room they can heat. Measure length, width and height in feet and multiply them. Then pick a heater whose stated range includes your room, with some margin if the room has a glass door or masonry walls.
| Heater | Power | Room size stated | Circuit draw | Safety listing stated |
|---|---|---|---|---|
| VEVOR 2kW | 2 kW, 120V | 53 to 88 cu ft | About 16.7 A | None |
| Harvia KIP 4.5 | 4.5 kW, 240V | 106 to 212 cu ft | 18.8 A, stated | None on this listing |
| Finlandia FLB-60 | 6 kW, 240V | 170 to 300 cu ft | 25 A | UL and ETL |
| VEVOR 6kW | 6 kW, 240V | 176 to 318 cu ft | 25 A | None |
| Finlandia FLB-80 | 8 kW, 240V | 250 to 425 cu ft | About 33 A | UL and ETL |
| Mxmoonant 9kW | 9 kW, 240V | 265 to 460 cu ft | About 37.5 A | ETL |
Circuit draw is power divided by voltage, except where the listing states it. A sauna heater is a continuous load, so the circuit breaker is usually sized at 125 percent of the draw. Your electrician will size the wire and breaker. Our sauna electrical guide explains the details.
What each one costs to run
At full power, using 18.34 cents per kWh, the US residential average for June 2026 from the Energy Information Administration. A heater runs at full power while the room warms up and then cycles, so a typical session costs less than this.
| Product | Rated power | Per one hour session | Per month, 4 sessions a week |
|---|---|---|---|
| Mxmoonant 9kW | 9,000 W | 165 cents | $28.61 |
| Finlandia FLB-80 | 8,000 W | 147 cents | $25.43 |
| Finlandia FLB-60 | 6,000 W | 110 cents | $19.07 |
| VEVOR 6kW | 6,000 W | 110 cents | $19.07 |
| Harvia KIP 4.5 | 4,500 W | 83 cents | $14.31 |
| VEVOR 2kW | 2,000 W | 37 cents | $6.36 |
The monthly column assumes four one hour sessions a week at full power, so treat it as a ceiling. See our running cost guide to use your own rate.
Score notes
The Chill Score weighs performance 35, build 25, value 25, safety certifications 10 where it applies and warranty 5. For heaters, performance means power, stated room range and controls.
| Product | Chill Score | Perf. | Build | Value | Safety | Warranty |
|---|---|---|---|---|---|---|
| Finlandia FLB-80, 8kW | 65 | 24 | 15 | 11 | 15 | 0 |
| Finlandia FLB-60, 6kW | 63 | 23 | 14 | 11 | 15 | 0 |
| Mxmoonant 9kW | 58 | 22 | 6 | 15 | 15 | 0 |
| VEVOR 6kW | 46 | 18 | 11 | 17 | 0 | 0 |
| Harvia KIP 4.5kW | 40 | 20 | 9 | 11 | 0 | 0 |
| VEVOR 2kW 120V | 34 | 14 | 6 | 14 | 0 | 0 |
In this roundup, safety points decide the order. Three listings state a UL or ETL listing, and they take the top three places. The Mxmoonant is the low priced way to a stated listing, with almost no record. No listing here states a warranty term.
Who should not buy one
If you are not having the heater installed by a licensed electrician, do not buy one. Every heater here except the 2kW model is hardwired on a 240V circuit.
If you want a sauna without building a room, a complete cabin is simpler. See our indoor cabin roundup and outdoor sauna roundup.
Speak to a clinician before using a sauna if you are pregnant, have a heart condition, low blood pressure, or take medication that affects heat tolerance.
Common questions
Can I use a 120V sauna heater?
Only for a very small room. The 2kW VEVOR covers up to 88 cubic feet, and even it needs a dedicated circuit.
Do heaters include stones?
Of our picks, only the Harvia KIP states that stones are included. Budget for 20 to 40 lb of sauna stones otherwise.
Why does a safety listing matter so much here?
A heater is a high current appliance that runs for long periods in an enclosed hot room. A UL, ETL or CSA listing means an independent lab has assessed it against a recognized standard. Electrical inspectors commonly expect one.
Power, room size and temperature figures are manufacturer rated. Circuit draw is power divided by voltage unless stated. Electricity rate: US Energy Information Administration, average residential price, June 2026, 18.34 cents per kWh.
