Recorded on 12/3/24: With today’s growing interest in lowering energy usage and sustainability, it is very hard for builders and engineers to reduce the energy consumption to its bare minimum. Once the low hanging fruits have been addressed like lighting retrofit, doors, windows and insulation upgrades, hot water fixtures retrofit, controls retrofit, air to air heat recovery and finally mechanical equipment upgrades, what is the next step?
In our continuing quest for innovation, it is time to investigate using Ultra high efficiency FEI rated fans and consider integrating flue gas thermo-cooling in our heating systems.
In the first part we take a deeper dive int ASHRAE 90.1-2022 that continues to require a more comprehensive fan energy-saving metric: The Fan Energy Index, or FEI. Unlike FEG, the FEI metric approach enables better fan selection—inclusive of the effects of motors and drives—and design-point performance.
In the second part, we address one of the final opportunities: recovering all the lost waste energy from our gas using appliances. From the smallest humidification steam boiler systems all the way to our super high efficiency condensing boilers and Domestic hot water heaters. We look at how we can combine the new high temperature heat pump technology to bring these systems over 105% efficiency and bring the exiting exhaust gases below 70°F, even in the hottest of climates.
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