Harvia Cilindro PC60Cilindro Half Series 6kW Sauna Heater Harvia Cilindro PC60, a modern steel pillar style sauna heater featuring built in controls, is engineered to power sauna rooms up to 294 cubic feet (CF). The Harvia Cilindro PC60 electric heater contains a massive amount of stones. Thanks to the grate like outer shell, each bather can adjust the nature of the steam: soft when throwing water onto the side of the heater and sharp when throwing water straight on top