this invention is directed to a system that generates a sufficient level of electricity through access to a municipal water supply line to run a furnace during below freezing temperatures . the system includes an inlet that draws water from a water supply line . a first conduit , in communication with the inlet , transports the water into a dc generator that includes an impeller to generate electricity . water is then routed through a second conduit which then returns the water to the water supply line through an outlet . a solenoid valve may be positioned between the inlet and first conduit which remains closed when the electric grid runs normally but will open during a power outage to supply water to the dc generator . a lithium battery stores power created by the dc generator , which may include a voltage regulator and inverter to convert to dc .