Flare fitting to pump of oil burner for receiving blow out tool

For use in combination with a fuel consuming furnace, a fuel tank reservoir remotely located from said fuel consuming furnace, a pump located in close proximity to the furnace, a conduit connecting the pump to the furnace to feed said furnace, a fuel pipe line communicating upstream with the reservoir and communicating downstream with the pump, and a pressurized fluid cleaning tool having coupling means at the delivery end thereof, the improvement comprising:

• a shut-off valve in the fuel pipe line in proximity to the pump,
• a disconnectable union in the fuel pipe line downstream of the shut-off valve and on the upstream side of the pump,
• said union having a flared end on the upstream end thereof,
• a rotatable collar engaging said flared end, coupling means on the downstream side of said collar,
• said flared end of said union and said coupling means on said collar comprising means for engaging and coupling with the delivery end of the tool and the coupling means at the delivery end thereof when said disconnectable union is disconnected from the upstream side of the pump,
• whereby access to the fuel line may be attained by closing said shut-off valve, disconnecting said union, coupling the cleaning tool said flared end and said collar, opening said valve and applying fluid pressure from the tool.