The Volcano is a pool or spa heating system. Recovered heat is transferred to the pool for free pool heating; the heat recovery increases the efficiency of the system connected to it, the manufacturer states. The system has an oil separator and suction accumulator. The system can be used on any type of refrigeration system, the company says. The pool/spa temperature, which ranges from 80 to 103 degrees F, is monitored by the electronic control center.

Vertex International Inc., Attn: Al Balloqui, 1080 Little House Court, Henderson, NV 89015; 702-456-2262 or 702-400-6577; 702-456-6767 (fax); VertexNevada@aol.com; www.volcanopoolheat.com.

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