
HUUM Drop 9: the largest Drop wall heater, for saunas up to 530 cubic feet
The HUUM Drop 9 is the largest Drop wall mounted electric sauna heater, rated at 9 kW for rooms from 282 to 530 cubic feet. Made in Estonia, its rounded stainless steel body is shaped like a drop of water and won Europe’s Red Dot design award. It measures about 15 inches wide, 13 inches deep, and 23 inches tall and weighs 26.5 pounds. It holds 122 pounds of stones, which sit directly on the heating elements for soft heat and lasting steam.
You get the heater, its wall bracket, a heat reflector, and the manual. It needs a HUUM UKU control to run, and you add that on the page. Choose the Wi-Fi version and you can start the sauna from your phone. Sauna stones are sold separately, so add the 4 boxes it needs on the page. A safety rail, an embedding flange, and a bucket and ladle set are optional. Prefer the control and stones in one order? See the HUUM Drop 9 heater package. The HUUM Drop 9 ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.
FAQ
What size sauna is the DROP 9 designed for?
It covers sauna rooms from 282 to 530 cubic feet, the largest rating in the wall-mounted DROP series. Compute your room volume in cubic feet and confirm it falls inside that range before ordering; a room outside it needs a different size.
Is a control included?
No – it works with HUUM UKU controls, sold as an add-on right on this page under Sauna Heater Controls. Choose the UKU Local digital control or a Wi-Fi, Mirror, or Gold version; the description notes the available Wi-Fi control lets you preheat the sauna from anywhere.
What comes in the box with the heater?
The includes tab lists the 9kW heater, a wall-mount bracket, a heat reflector, and the installation and operation manual, backed by a limited 5-year warranty excluding elements. The heat reflector is unique to this model in the series, so keep it with the installation hardware.
How many stones does it take?
Up to 122 pounds, which the description notes exceeds most wood-burning stoves for a wall-mounted heater. The stones ship separately; the Required Stones add-on on this page lists the four boxes of HUUM Stones 24 small (5-10 cm) stones, so order them with the heater.
Can you ladle water over it like a traditional stove?
Yes. The description highlights that the exceptionally large rock capacity lets the bather ladle more water onto the stones for a more intense session while keeping a consistent, soft high heat. Pour sensible amounts over the stones as the manual directs, not over the housing.
What electrical service is required?
The specification table lists 37.5 amps at 240V single-phase, a 50-amp circuit breaker, and 8 AWG wire. That is a dedicated hard-wired circuit, so bring in a licensed electrician and follow the installation manual and local code before the first heat-up.
What warranty applies?
A limited 5-year warranty excluding heating elements, per the features tab. The heater is SGS Listed, made in Estonia, and won the Red Dot design award in Europe according to the description – the stainless steel build is meant to outlast the paperwork by a wide margin.