CASE STUDY HVAC Rooftop Unit Malfunction – Total Annual Cost Avoidance of $21,550 www.powerhousemgt.ca OVERVIEW In a retail store setting, natural gas is mostly consumed to heat the area during the colder months of the year. This means that as the weather turns nicer, the rooftop units switch from heating to cooling in order to maintain a comfortable temperature level in the store. This should therefore translate into a reduction in natura

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