Harvia’s additional heater is a high-quality electric heater that is made and designed in Finland to be used with outdoor hot tubs. The additional heater used in combination with the wood-burning stove makes the heating time more efficient. You can also use the heater independently to maintain the water temperature.

The additional heater is safe to use and an ecological solution for heating the hot tub. The heater is easy to connect to the stove and plug to the main electricity. Simply adjust the heater temperature to suit your needs.

Carefully selected materials and components ensure the high-quality and a long product life of the heater. The frame of the heater consists entirely of strong stainless steel and the heating elements are made of titanium. The heater is easy to maintain, and spare parts are available if needed.

• High-quality additional heater (3000W/230VAC) for hot tubs, possible to connect next to the hot tub’s stove
• Easy to install – plug it in to the main electricity and adjust the heater temperature to suit your needs
• Made for outdoor use (IP44) and can be stored in cold conditions
• Control the temperature from the thermostat. Adjustable water temperature approx. 10-40 °C