It is not compatible with propane (LP) units

For technicians performing oil furnace repair

clean agent

Does this orifice work with propane

the flow characteristic is linear

Lennox 20G51 Relay R-407A It is not compatible withThe Lennox 20G51 Relay is a high performance 24V 3PDT relay engineered for precise circuit control in commercial and residential HVAC systems. Designed as a direct OEM Lennox replacement part, this triple pole double throw relay allows for the simultaneous management of three independent circuits, making it indispensable for complex switching logic where isolation between power sources or signal paths is required. Operating at a standard 24VAC control