Delta-T recently completed an HVAC assessment report for a 100 year old building in Rossland, BC. The report outlined feasible solutions to improve the buildings heating, ventilation, and air conditioning (HVAC) system for the building’s third floor tenant space. The analysis involved building heat gain and loss calculations as well as determination of ventilation requirements according to ASHRAE 62.1 . Estimated construction costs were provided to assist the tenant in their decision process moving forward.