Abstract: A coolant heater having a coolant tank and a burner tube within the coolant tank is used for marine and motor coach installations. The burner tube is offset sidewise from the center line of the coolant tank to allow an exhaust manifold to be positioned within the coolant tank and beside the burner tube which allows a predictable coolant movement to more evenly distribute the heat throughout the coolant. An exhaust manifold is positioned within the coolant tank in the space obtained by the burner tube offset which allows an “up” or “down” exhaust duct configuration depending on the heater installation. An expansion tank connected to the coolant tank has a level switch located within the expansion tank and a pump is operably connected to the expansion tank and to the level switch. The pump terminates operation when the level switch indicates low coolant in the expansion tank.

Abstract: Apparatus and method for creating a vapor flame in a burner having an adjustable BTU output using a liquid diesel fuel and air mixture. A burner tube within which the fuel air mixture initially combusts to form a flame is heated from its outside circumference by a combustion flame within a counterflow chamber surrounding the burner tube. The temperature of the burner tube is maintained at a value where the fuel air mixture within the burner tube turns into vapor with a lack of combustion air which vapor fuels the flame within the counterflow chamber and which vapor also travels to a burner head where it combusts. The combustion air and compressor air are varied following establishment of the vapor flame to increase and decrease the heat output from the burner.

Abstract: A compressor for providing pressurized air at a predetermined pressure and at a predetermined volume. The compressor has a motor with a shaft to which an eccentric is attached which moves a crank rod upwardly and downwardly and to which is attached a flexible diaphragm. The reciprocal movement of the diaphragm draws air into a chamber while an inlet flapper valve opens and expels air from the chamber through an outlet flapper valve. The flapper valves are made from spring steel and act in a cantilever movement to open and close the inlet and outlet passageways. O-rings are provided to deaden the sound of the flappers. A counterweight is attached to the eccentric to provide an opposed force to the force generated by rotation of the eccentric. An air bleeder allowing air movement between the inlet and outlet passageways may be provided to adjust the air pressure emanating from the compressor.

Abstract: A coolant heater having a coolant tank and a burner tube within the coolant tank is used for marine and motor coach installations and is used for either a liquid powered or gas powered burner.

Abstract: A coolant heater having a coolant tank and a burner tube within the coolant tank is used for marine and motor coach installations. The burner tube is offset sidewise from the center line of the coolant tank to allow an exhaust manifold to be positioned within the coolant tank and beside the burner tube which allows a predictable coolant movement to more evenly distribute the heat throughout the coolant. An exhaust manifold is positioned within the coolant tank in the space obtained by the burner tube offset which allows an “up” or “down” exhaust duct configuration depending on the heater installation. An expansion tank connected to the coolant tank has a level switch located within the expansion tank and a pump is operably connected to the expansion tank and to the level switch. The pump terminates operation when the level switch indicates low coolant in the expansion tank.