Abstract: An immersion well assembly may include a thermistor housing defining a first axial passage and a thermistor wire collar axially secured to the thermistor housing and defining a second axial passage. The second axial passage may receive a thermistor wire and may axially fix the thermistor wire relative to the thermistor housing.

Abstract: An immersion well assembly may include a thermistor housing defining a first axial passage and a thermistor wire collar axially secured to the thermistor housing and defining a second axial passage. The second axial passage may receive a thermistor wire and may axially fix the thermistor wire relative to the thermistor housing.

Abstract: A gas valve includes two solenoid valves connected fluidically in series. A housing assembly contains a circuit board on which electrical components and a plurality of plug terminals and pin terminals are mounted. The plug terminals are adapted to be connected to the solenoid valves and the pin terminals are adapted to be connected to external circuitry. The housing assembly is adapted to be attached to the valve body either in a first position wherein the pin terminals extend in a first direction or in a second position wherein the pin terminals extend in a second direction. The housing assembly and the solenoid valves are adapted for enabling connection of the solenoid valves to the circuit board when the housing assembly is in either the first or second position. The solenoid valves are operated by direct current and are so mechanically constructed as to operate in a relatively quiet manner.