Overdraft can quietly cost you efficiency and reliability. Learn how excessive boiler draft disrupts combustion, increases stack losses, and creates performance problems—and how to bring it back under control.

A routine rooftop fan replacement may look like a simple maintenance decision, but it can lock a building into unnecessary operating costs for the next fifteen to twenty years. Because crane access, labor, and rooftop disruption are already part of the replacement, this moment creates a rare opportunity to upgrade to demand-based exhaust at a relatively small incremental cost.

By modulating airflow to match actual demand, buildings can reduce energy waste, improve performance, and achieve a faster return on investment.

Most multifamily buildings exhaust far more air than they need to — often wasting energy around the clock. By reducing overventilation and matching airflow to actual demand, building owners can cut operating costs, improve comfort, and achieve faster payback.

Pulp and paper mills use large amounts of heat for pulping, evaporation, and paper drying, but much of that energy is lost through exhaust air, wastewater, condensate, and flue gas.

ATW WHR recovers this wasted heat and reuses it for process water, boiler makeup, building heat, and other hot water needs. It’s a simple way for mills to reduce fuel use without disrupting production.

Many apartment and condo buildings waste energy by expelling heat as part of normal HVAC operation. Modern heat recovery systems can capture and reuse this energy for heating and hot water. In dense buildings, this reduces energy use, lowers costs, and helps meet stricter carbon regulations.

Airports are complex energy environments. A single terminal may cool thousands of passengers, refrigerate catering, ventilate fuel fumes, and heat jet bridges simultaneously. While some areas burn energy to produce heat, others are actively rejecting heat outdoors. Large refrigeration plants, chillers, and HVAC systems constantly remove thermal energy and expel it through condensers or cooling towers—often at the same time other parts of the airport are generating new heat with boilers or electric systems.