Greenheck's new cost efficient Model IG-HV indirect gas-fired make-up air units are ideal for commercial and institutional applications such as medical clinics, hospitals, schools, corridor ventilation for apartments, and gyms. Model IG-HV features a power vented 80% efficient indirect gas-fired furnace with post-purge cycle and is ETL listed to ANSI Standards Z83.8 and CGA 2.6. The IG-HV units are supplied with double width, double inlet Greenheck forward curved blowers tested to AMCA standards for high efficiency and low sound levels. Model IG-HV provides airflow volumes to 7,000 cfm with heating capacities up to 400,000 BTU/hr input. The flexible Model IG-HV offers three heating and ventilation options and eight economizer and mixing box options, and can be supplied with the highest turndown furnace control in the industry (8:1 turndown).

Greenheck's Model IG-HV features large access panels for ease of inspection and maintenance, and is factory assembled and wired to minimize field installation costs.