The Harvia WHP1500 stainless steel chimney kit is a complete, easy-to-install system designed for wood-burning sauna stoves, small fireplaces, and similar heaters. Built to handle high temperature changes, the kit includes an insulated chimney, non-insulated connector pipe, ceiling pass-through components, insulation, rain cap, rain flange, and installation hardware. The locking connection system helps keep sections secure during temperature expansion.

The chimney can be installed up to 9' 8" indoors without support and 6' 6" outdoors as a self-supported installation. It is rated for flue gas temperatures up to 600°C, has an 8.66" outer diameter with a 4.53" flue diameter, and requires a 3.94" clearance from combustible materials. The system is CE-certified and designed to be soot fire resistant for safe operation.