We will pull out the old water heater rework water lines run new flu piping and run gas line down to the closet. We will need to install a regulator inside the closet on the gas line, cut a hole in the ceiling for combustion air, install flu piping and run it out the roof of the home. Install all code updates on the tankless. Rework the wiring to install an outlet for the tankless to have power. The code updates include hammer resters, an expansion tank, a pan, a drip leg for the gas line and a flush valve kit for maintenance. 15 year warranty on the heat exchanger, 5 year warranty on parts and labor. We will install a halo water filter which comes with a pressure reducing valve installed the halo will descale and filter out possible harmful chemicals in the water. When we do these options we will give the customer an outside faucet with no extra cost. This option comes with a service partner plan membership that will last for 1 year.