⁠Harvia Thermio Water Heater WP250TH

Safe, Fast, and Stylish Water Heating for Your Traditional Sauna

The Harvia Thermio WP250TH is a premium, chimney-mounted 25-liter water heater featuring an elegant and modern stainless steel outer casing. Designed to be installed directly on top of your wood-burning stove, the smoke pipe runs straight through the water tank. This smart layout utilizes the residual heat from the flue to warm up your washing water quickly and efficiently with zero extra fuel required. The front section can be filled with sauna stones, making it a beautiful decorative element that can also be used for throwing water to create soothing clouds of steam.

For maximum user safety, the water heater features Harvia’s innovative detached smart tap solution. Rather than placing the tap on the boiling hot tank itself, a flexible silicone hose extends from the bottom of the container to a separate remote tap. You can easily mount the tap in three different ways: underneath the bench edge, integrated into the bench boards, or fixed to the wall. This remote setup ensures comfortable operation and completely eliminates the risk of accidental burns or hot water splashes.

Important Note: The water heater must always be filled with water whenever the sauna stove is in use to prevent severe damage to the tank structure.

Technical Specifications

• Capacity: 25 liters
• Material: Durable stainless steel
• Dimensions (W x D x H): 360 × 280 × 450 mm
• Weight: 7.0 kg
• Smoke Outlet Diameter: 115 mm