WaterEx Water/Heat Exchanger | HUUM

HUUM WaterEx Water/Heat Exchanger adds convenient hot-water capability to your HUUM wood-burning sauna stove by capturing a portion of the stove’s heat and transferring it efficiently to a connected water system. Built from durable 4 mm steel and finished with heat-resistant paint, this exchanger is designed to withstand the intense temperatures produced by HIVE-series heaters while maintaining long-term structural integrity. Its versatile mounting options—rear or lateral placement—allow you to adapt the installation to your sauna layout without compromising performance. Featuring 3/4″ NPT male connections, the WaterEx integrates easily with compatible tanks or plumbing, enabling reliable water heating alongside normal stove operation. Fully compatible with all HUUM wood-burning models, this accessory enhances functionality without altering the stove’s clean design, providing added comfort and efficiency with every session.

Flat-rate delivery of £274 covers every product and accessory to any UK mainland address; orders over £5,000 ship free. We process orders in 1–3 working days and the courier takes 3–6 working days. Large items come on a pallet and we phone to book a delivery day.

You can cancel within 14 days of delivery under the Consumer Contracts Regulations. Returns are processed within 7 working days of the goods arriving back with us. Read the full shipping policy and returns policy.