a sudden drop in hot water volume

providing an essential safety interlock that prevents the main gas valve from opening during ignition failure scenarios

The scale is built from high-impact polystyrene

Is this a direct replacement for Fasco or other brands

Features an ultra-low noise 3-blade profile to meet strict decibel requirements in commercial zones

Dwyer Instruments 2015 Pressure Gage 320735-701 a sudden drop in hotThe Dwyer Magnehelic 2015 is the industry standard for measuring differential pressure in HVAC systems and cleanroom environments. Designed for 0 15. 0" w. c. ranges, this gage utilizes a frictionless Magnehelic movement that eliminates wear and hysteresis, ensuring consistent accuracy within 2% of full scale. The 4" diameter dial face provides clear visibility for monitoring air or non combustible gases, while the die cast aluminum housing handles