Patent ID: 8151753

Claim:
A warm-up system for a vehicle that pre-heats a vehicle power train by transferring heat from a heat source to an engine cooling water circulation circuit, comprising: a heat source circuit that circulates heat from a medium in a household heat source; and a connector that: connects the engine cooling water circulation circuit and the heat source circuit prior to start-up of the vehicle power train such that heat from the heat source circuit is transferred to the engine cooling water circulation circuit, and disconnects the engine cooling water circulation circuit and the heat source circuit after the heat is transferred to the engine cooling water circulation circuit, wherein the connector includes: a vehicle side jack on a first branch pipe that bifurcates from the engine cooling water circulation circuit, and a residence side plug on a second branch pipe that bifurcates from a residential hot water circuit, wherein the heat source circuit transfers heat through the connector as a flow of the medium to the engine cooling water circulation circuit.