Series CA-6100 CA-CALC™ portable combustion analyzers provide real-time analysis of residential and light commercial gas-, oil-, and wood-heating systems and other combustion appliances to tune burners for optimum efficiency and safe operation, states the manufacturer. Users can select from four models with combinations of measured O2, stack temperature, ambient temperature, CO, and draft pressure. User-selectable fuels, CO2 (calculated), efficiency, and excess air are available in models having the relevant sensors installed.

TSI Inc., P.O. Box 64394, St. Paul, MN 55164; 800-777-8356 or 651-490-2711; 651-490-2874 (fax); answers@tsi.com (e-mail); www.tsi.com (website).

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