See it at Harvia: KIP45B 4.5 kW 240VAC
Harvia's own page for the KIP45B 4.5 kW 240VAC. Not a paid link.
What breaker does a sauna heater need?
The one its maker lists for that heater: 23 heaters' makers here give a breaker or current figure, quoted on each product page. A licensed electrician should confirm it against the installation manual before anything is wired.
Use the maker filter to shortlist, then open each product page and copy the stated breaker or current figure down exactly as printed. Nothing on this page replaces the label on the heater or the licensed electrician who reads it, so choose the heater and the installer together and let the installer confirm the breaker. The linked guide covers the permit side.
Picks by the numbers
Each pick is the product that comes first on one figure its maker publishes, with the next ones on that figure after it. Choosing which figures to rank by is our editorial choice; the order on each is the makers' own numbers. None is a judgement of quality, we have not tested these products, and whether we earn a commission on a product never decides a pick.
- Least heater output: Harvia KIP45B 4.5 kW 240VAC (Harvia lists: 4.5 kW); HUUM DROP 4 (HUUM lists: 4.5 kW). Among the 20 of 23 that list this figure. Next on this figure: Harvia KIP60W 6.0 kW 240V (6 kW) and HUUM CLIFF 6 (6 kW), 4 more at this figure; then HUUM CORE 6 (6.5 kW).
- Most heater output: HUUM HIVE 18 (HUUM lists: 18 kW). Among the 20 of 23 that list this figure. Next on this figure: HUUM HIVE 15 (15 kW); then HUUM HIVE 12 (12 kW).
Where to buy the picks
Harvia KIP45B 4.5 kW 240VAC
As an Amazon Associate we earn from qualifying purchases. Some links on this page are paid: if you buy after following one, the retailer pays Saunakivi (IPORA LLC) a commission. It costs you nothing extra, and it never changes the specifications we list.
Amazon
Sold via a marketplace listing — the seller may not be the brand or an authorized retailer.
HUUM DROP 4
Paid links · how this works
- Select Saunas
Amazon — with UKU Local control (Wood)
Sold via a marketplace listing — the seller may not be the brand or an authorized retailer.
See it at HUUM: DROP 4
HUUM's own page for the DROP 4. Not a paid link.
HUUM HIVE 18
Paid links · how this works
- Select Saunas
Amazon — WiFi UKU Control (Glass)
Sold via a marketplace listing — the seller may not be the brand or an authorized retailer.
See it at HUUM: HIVE 18
HUUM's own page for the HIVE 18. Not a paid link.
Every match (23)
Filter the matches by price on the maker's site, warranty, safety listing and where to buy.
Showing 23 of 23
- HUUM CLIFF 11
Electric heater · HUUM
HUUM · electric · rated for 10–16 m³ (about 353–565 ft³, our conversion)
- No price on the maker's site
- 3 years (private use); 1 year (commercial use)
- HUUM CLIFF Mini 4
Electric heater · HUUM
HUUM · electric · rated for 3–5 m³ (about 106–177 ft³, our conversion)
- No price on the maker's site
- 3 years (private use); 1 year (commercial use)
- HUUM STEEL Mini 4
Electric heater · HUUM
HUUM · electric · rated for 3–5 m³ (about 106–177 ft³, our conversion)
- No price on the maker's site
- 3 years (private use); 1 year (commercial use)
- Harvia KIP45B 4.5 kW 240VAC
Electric heater · Harvia
Harvia · electric · 4.5 kW · rated for 100–211 ft³ (about 2.8–6 m³, our conversion)
- No price on the maker's site
- On the maker's Amazon storefront
- HUUM DROP 4
Electric heater · HUUM
HUUM · electric · 4.5 kW · rated for 3–7 m³ (about 106–247 ft³, our conversion)
- No price on the maker's site
- 3 years (private use); 1 year (commercial use)
- On the maker's Amazon storefront
- Harvia KIP60W 6.0 kW 240V
Electric heater · Harvia
Harvia · electric · 6 kW · rated for 170–300 ft³ (about 4.8–8.5 m³, our conversion)
- No price on the maker's site
- HUUM CLIFF 6
Electric heater · HUUM
HUUM · electric · 6 kW · rated for 5–9 m³ (about 177–318 ft³, our conversion)
- No price on the maker's site
- 3 years (private use); 1 year (commercial use)
- On the maker's Amazon storefront
- HUUM DROP 6
Electric heater · HUUM
HUUM · electric · 6 kW · rated for 5–9 m³ (about 177–318 ft³, our conversion)
- No price on the maker's site
- 3 years (private use); 1 year (commercial use)
- On the maker's Amazon storefront
- HUUM HIVE Mini 6
Electric heater · HUUM
HUUM · electric · 6 kW · rated for 5–9 m³ (about 177–318 ft³, our conversion)
- No price on the maker's site
- 3 years (private use); 1 year (commercial use)
- On the maker's Amazon storefront
- HUUM STEEL 6
Electric heater · HUUM
HUUM · electric · 6 kW · rated for 5–9 m³ (about 177–318 ft³, our conversion)
- No price on the maker's site
- 3 years (private use); 1 year (commercial use)
- On the maker's Amazon storefront
- Scandia Ultra 6.0 kW
Electric heater · Scandia
Scandia · electric · 6 kW
- From $1,300 (scandiamfg.com, 23 Sep 2026)
- 10 years (shell); 1 year (parts)
- UL listed
- HUUM CORE 6
Electric heater · HUUM
HUUM · electric · 6.5 kW · rated for 5–9 m³ (about 177–318 ft³, our conversion)
- No price on the maker's site
- 3 years (private use); 1 year (commercial use)
- On the maker's Amazon storefront
- HUUM DROP 7
Electric heater · HUUM
HUUM · electric · 7.5 kW · rated for 7–11 m³ (about 247–388 ft³, our conversion)
- No price on the maker's site
- 3 years (private use); 1 year (commercial use)
- On the maker's Amazon storefront
- Harvia KIP80B 8 kW 240VAC
Electric heater · Harvia
Harvia · electric · 8 kW · rated for 251–424 ft³ (about 7.1–12 m³, our conversion)
- No price on the maker's site
- On the maker's Amazon storefront
- HUUM CLIFF 9
Electric heater · HUUM
HUUM · electric · 9 kW · rated for 8–13 m³ (about 283–459 ft³, our conversion)
- No price on the maker's site
- 3 years (private use); 1 year (commercial use)
- On the maker's Amazon storefront
- HUUM CORE 9
Electric heater · HUUM
HUUM · electric · 9 kW · rated for 8–13 m³ (about 283–459 ft³, our conversion)
- No price on the maker's site
- 3 years (private use); 1 year (commercial use)
- HUUM DROP 9
Electric heater · HUUM
HUUM · electric · 9 kW · rated for 8–13 m³ (about 283–459 ft³, our conversion)
- No price on the maker's site
- 3 years (private use); 1 year (commercial use)
- On the maker's Amazon storefront
- HUUM HIVE Mini 9
Electric heater · HUUM
HUUM · electric · 9 kW · rated for 8–13 m³ (about 283–459 ft³, our conversion)
- No price on the maker's site
- 3 years (private use); 1 year (commercial use)
- HUUM STEEL 9
Electric heater · HUUM
HUUM · electric · 9 kW · rated for 8–13 m³ (about 283–459 ft³, our conversion)
- No price on the maker's site
- 3 years (private use); 1 year (commercial use)
- On the maker's Amazon storefront
- HUUM HIVE Mini 11
Electric heater · HUUM
HUUM · electric · 10.6 kW · rated for 10–16 m³ (about 353–565 ft³, our conversion)
- No price on the maker's site
- 3 years (private use); 1 year (commercial use)
- On the maker's Amazon storefront
- HUUM HIVE 12
Electric heater · HUUM
HUUM · electric · 12 kW · rated for 12–18 m³ (about 424–636 ft³, our conversion)
- No price on the maker's site
- 3 years (private use); 1 year (commercial use)
- On the maker's Amazon storefront
- HUUM HIVE 15
Electric heater · HUUM
HUUM · electric · 15 kW
- No price on the maker's site
- 3 years (private use); 1 year (commercial use)
- On the maker's Amazon storefront
- HUUM HIVE 18
Electric heater · HUUM
HUUM · electric · 18 kW · rated for 18–28 m³ (about 636–989 ft³, our conversion)
- No price on the maker's site
- 3 years (private use); 1 year (commercial use)
- On the maker's Amazon storefront
Prices are the price each maker's own site showed in US dollars on the date shown; the seller's page has the current price. Warranties and safety listings are the makers' own statements, cited on each product page. A price starting 'From' is the cheapest configuration a maker offers, which may leave out the heater or options. Every product here is sold by its maker on the maker's own site. Where a product page carries a paid link (to Amazon or another approved retailer), Saunakivi may earn a commission; no sort order or filter favours those products. We have not tested these products.