Heating system with pressure regulator

摘要

A heating system can include certain pressure sensitive features. These features can be configured to change from a first position to a second position based on a pressure of a fuel flowing into the feature. These features can include, fuel selector valves, pressure regulators, burner nozzles, and oxygen depletion sensor nozzles, among other features.

主权项

1. A dual fuel assembly comprising:
a housing; an inlet; an outlet; a first valve comprising a valve member and a first biasing device; a second valve comprising a first diaphragm and a second biasing device; a third valve comprising a second diaphragm and a third biasing device; wherein the inlet is configured for fluid communication with the first valve and the third valve such that fluid entering the inlet at a first pressure can flow through the first valve to the second valve, open the second valve and flow through the second valve to the outlet, fluid entering the inlet at a second pressure can open and flow through the third valve to the outlet; wherein the dual fuel assembly is configured such that fluid flowing at the second pressure closes the first valve.