Optimized Pitch: 20-degree blade angle provides consistent airflow (CFM) through the coil fins

but these bodies are typically rated to handle up to 30-50 psi differential pressure depending on the specific model of the Pop-Top motor used

and White-Rodgers 767A-369

This 2H/2C heat pump thermostat supports up to 2-stage heating and 2-stage cooling

Is there a difference between the P70KA-7 and the P70KA-7C

Lochinvar & A.O. Smith 100233421 Damper Els PW 29614 Optimized Pitch: 20-degree blade angleThe Lochinvar & A. O. Smith 100233421 Damper is a critical 5 inch automatic flue damper designed for the Lochinvar RBN090 boiler and A. O. Smith water heaters. This 24V motor actuated damper serves as a direct replacement for the legacy Lochinvar DRH2935, ensuring peak combustion efficiency by managing exhaust gas flow. When the burner cycle is in standby, the assembly closes to minimize standby heat loss, maintaining a higher energy factor and