The Pioneer Heating Appliance from HTP combines condensing high-efficiency and high thermal mass to allow installation as a direct replacement for inefficient equipment. The Pioneer does not require a primary/secondary design to protect against low flow conditions, eliminating the cost of pipes, fittings, valves, and pumps associated with the boiler loop. The Pioneer is suitable for most residential space heating applications.

HTP, P.O. Box 429, 120 Braley Road, East Freetown, MA 02717; 800-323-9651 or 508-763-8071; 508-763-3769 (fax);