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HUUM Drop Sauna Heaters

4.5 - 9 kW ◆ Wall-Mounted ◆ External Control Unit

The HUUM Drop is available in your choice of four powers: 4.5 kW, 6.0 kW, 7.5 kW or 9.0 kW.

Model Model	Power Power	Adj. VolumeAdjusted Sauna Volume This column shows the adjusted sauna volume range for which each sauna heater is rated. "Adjusted sauna volume" is the volume (i.e. Width x Depth x Height) of the interior of the sauna PLUS an adjustment for cold surfaces in the sauna (i.e. glass, tile, stone, etc. — but not including the floor). This adjustment is typically around +20% but can be more (for example, if your sauna has multiple large windows). Want to verify your sauna's adjusted volume? Use this 20-second CALCULATOR to make sure the heater you buy has the correct power (measured in kilowatts, or kW). Adj VolumeAdjusted Sauna Volume This column shows the adjusted sauna volume range for which each sauna heater is rated. "Adjusted sauna volume" is the volume (i.e. Width x Depth x Height) of the interior of the sauna PLUS an adjustment for cold surfaces in the sauna (i.e. glass, tile, stone, etc. — but not including the floor). This adjustment is typically around +20% but can be more (for example, if your sauna has multiple large windows). Want to verify your sauna's adjusted volume? Use this 20-second CALCULATOR to make sure the heater you buy has the correct power (measured in kilowatts, or kW).	Sauna SizeMaximum Sauna Size This column provides a quick-reference estimate of the maximum sauna capacity (i.e. 3-person sauna, 4-person sauna, etc.) for which each sauna heater is rated. Again, this is only an estimate based on average sauna sizes, layouts & interior cold surfaces. Your sauna may differ. We strongly recommend taking 20 seconds to verify your sauna's adjusted volume (which is much more precise) to make sure the heater you buy has enough power (measured in kilowatts, or kW). Sauna SizeMaximum Sauna Size This column provides a quick-reference estimate of the maximum sauna capacity (i.e. 3-person sauna, 4-person sauna, etc.) for which each sauna heater is rated. Again, this is only an estimate based on average sauna sizes, layouts & interior cold surfaces. Your sauna may differ. We strongly recommend taking 20 seconds to verify your sauna's adjusted volume (which is much more precise) to make sure the heater you buy has enough power (measured in kilowatts, or kW).	Control Unit Controller	Price Price	View Product
Drop 4.5	4.5 kW	106 - 247 ft³	2-3 people	Any UKU controller	$1,334	Heater view Bundle bundle
Drop 6	6.0 kW	177 - 318 ft³	3-4 people	Any UKU controller	$1,506	Heater view Bundle bundle
Drop 7.5	7.5 kW	248 - 389 ft³	4-5 people	Any UKU controller	$1,672	Heater view Bundle bundle
Drop 9	9.0 kW	282 - 460 ft³	5-6 people	Any UKU controller	$1,751	Heater view Bundle bundle

Key Features:

Wall-mounted
122-pound stone capacity
Connects to a 240-Volt electric line
Reaches temperatures up to 230° F

Award-winning natural droplet design
Made and designed in Estonia
15.4" W x 13.2" D x 23.3" H
Backed by a 3-year warranty

Not sure how much power you need?

Use this calculator to tell us about your sauna, and we’ll tell you how many kilowatts (kW) your heater needs. The "adjusted volume" of your sauna will determine whether you should get the Drop 4.5, the Drop 6, the Drop 7.5 or the Drop 9.

Other HUUM Designs

HIVE Series

6 - 18 kW
free-standing
can link 2+ HIVEs together

CLIFF Series

3.5 - 10.5 kW
free-standing
high stone capacity

STEEL Series

3.5 - 10.5 kW
free-standing
330-lb. stone capacity