Laars Heating Systems 2400-110 Stack Switch 320788-702 The dual-check design utilizes an

The dual-check design utilizes an intermediate atmospheric vent to safely discharge polluted water if a downstream check fouls

Operating at 480V 1Ph

a remote sensor model like the 013G2952 should be utilized instead

making it a versatile aftermarket HVAC part for legacy and modern equipment

3/4 HP OEM replacement motor designed for high-static pressure applications in residential and light commercial HVAC systems

Laars Heating Systems 2400-110 Stack Switch 320788-702 The dual-check design utilizes anThe Laars Heating Systems 2400 110 Stack Switch is a critical exhaust temperature sensor designed for commercial and residential boiler systems. As an OEM Laars replacement part, this bimetallic stack relay monitors flue gas temperatures to provide essential furnace safety control. Engineered specifically for Mark II H Series (sizes 60 130) and Mark II 9600 models (HWG & CB, sizes 150 250), it ensures the burner only operates when a safe draft and