Harvia Linear WL530 22 Es Protective Sheath (side) - Finnish Sauna BuildersHarvia Linear WL530 22 Es Protective Sheath (side) The Harvia WL530 protective sheath is designed and approved for wood heated Harvia stoves (Harvia Linear 22 ES). The protective sheath considerably reduces the safety distance to combustible materials in practice, this makes the stove fit in a smaller space. The protective sheath is attached to the stove and conforms to the shape of the stove, making the combination sleek. As the Harvia protective