At the AHR Expo, @mechanicalhub speaks with Navien about its NPF hydronic furnace, a forced-air system that integrates tankless water heater combustion technology into an all-in-one air handler. The unit operates as a closed-loop hydro-air system with a variable-speed blower and wide modulation range, allowing lower input rates than many conventional gas furnaces. Paired with a heat pump and cased coil, the system functions as a hybrid dual-fuel setup that can run both heat sources simultaneousl
1:35
At the AHR Expo, @mechanicalhub speaks with Navien about its NPF hydronic furnace, a forced-air system that integrates tankless water heater combustion technology into an all-in-one air handler. The unit operates as a closed-loop hydro-air system with a variable-speed blower and wide modulation range, allowing lower input rates than many conventional gas furnaces. Paired with a heat pump and cased coil, the system functions as a hybrid dual-fuel setup that can run both heat sources simultaneousl
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