HUUM Drop 7 7.5 kW Electric Sauna Heater

The HUUM DROP 7 is a 7.5 kW wall-mounted electric sauna heater for rooms of 230–441 cubic feet on a 240V single-phase supply. It holds 122 lb of stones and requires a HUUM UKU control, sold separately.

DROP is the heater HUUM is best known for: a rounded, water-drop form that softens a room otherwise made of straight lines. It hangs on the wall, which frees the floor in a small room, and it still carries 122 lb of stones — more than some wood stoves — so the steam is soft and lasts between pours.

• Unique water drop design
• Works with UKU controls (sold separately)
• 122 pound stone capacity (required 4 boxes sold separately)
• Direct contact between stones and heating elements
• More exposed stones create a longer and milder heat

These are not included. You need them before the sauna will run.

Marks as supplied by HUUM: CE, IPX4, SGS listed. Requirements vary by jurisdiction — confirm with your building department and insurer before you install.

The HUUM DROP 7 is rated for 230–441 cubic feet.

Measure width × depth × height in feet. Add extra volume for anything that soaks up heat rather than reflecting it — glass, tile, concrete, stone and exposed log all make a room behave larger than its raw measurement. Size to the larger number: an undersized heater never gets the room right, and running it flat out shortens the elements.

Work out your room with the sauna heater size calculator

HUUM lists these accessories for the DROP 7. All are sold separately.

• Mount to the clearances given in the installation manual.
• HUUM specifies rounded olivine stones, not the split-face stones other brands use. Load them loosely by hand so air moves freely, and never run the heater with an empty or tightly packed stone space.
• The UKU temperature sensor mounts inside the hot room on the wall above the heater. Sensor position changes how the room behaves more than any setting on the panel does.
• Pour small ladlefuls of clean water onto the stones only — never onto the body or the elements. Mix any scented oil into the bucket first.

Does the HUUM DROP 7 include a control?

No, and it cannot run without one. Every HUUM electric heater ships with no controls on the body — you add a HUUM UKU control, sold separately, which mounts outside the hot room and lets you bring the sauna up to temperature before you walk in.

What stones does the HUUM DROP 7 take?

Rounded olivine, 5-10cm — 4 boxes, 122 lb in total. HUUM specifies rounded stones rather than the split-face stones other brands use: they suit the open HUUM basket and give a milder steam. Stones are not included.

Is the HUUM DROP 7 certified for use in the US?

HUUM supplies it with these marks: CE, IPX4, SGS listed. Requirements vary by jurisdiction, so confirm with your building department and insurer before you book the electrician. Ask us if you need the certification documents.

HUUM-DROP-Sauna-Heater-IOM.pdf

HUUM-Element-Requirements.pdf

HUUM Certificate of Compliance.pdf

HUUM-Warranty.pdf