The HUUM WaterEx Water/Heat Exchanger gives a HUUM wood-burning sauna stove a hot-water function. It draws off a portion of the stove's heat and passes it to a connected water system, so water warms while the stove runs normally. It fits all HUUM wood-burning models, including the HIVE series.
The body is 4 mm steel finished in heat-resistant paint, made to hold up to the temperatures HIVE-series heaters produce. It mounts at the rear or the side of the stove to suit the room layout, and 3/4″ NPT male connections tie it into a compatible tank or plumbing.