Cilindro Half Series 9kW Sauna Heater Harvia Cilindro PC90E, a modern steel pillar style electric sauna heater, is engineered to power sauna rooms up to 494 cubic feet (CF). The Harvia Cilindro 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 of the stone pillar. Cilindro is impressive to both look at and experience. The Harvia Cilindro PC90E sauna heating unit required Xenio control for operation is sold separately. Side-wall or corner of room install For sauna rooms from 141 to 494 cu. ft. Requires a minimum of 200lbs of stones (5 box-AC3000) Direct rock-to-heating element contact Industrial grade, serviceable heating elements Designed, engineered, and made in Finland Dimensions: 14"W (355mm) x 13"D (330mm) x 40"H (1016mm) Manufacturer's Note:Sauna heater stones are significant to the unit's safety. Manufacturer's Note:Sauna heater stones are significant to the unit's safety.