The Harvia WHP500 Chimney Extension is a 0.5-meter (19 5/8”) insulated stainless steel chimney pipe designed to extend the height of your Harvia chimney system. This high-quality extension is compatible with the Harvia WHP1500 Chimney Kit, providing additional height to ensure optimal ventilation and draft for wood-burning sauna stoves. Constructed from durable stainless steel, this extension is corrosion-resistant and designed for long-lasting performance, making it ideal for sauna environments.