Tankless water heater oil

Bosch 2700ES NG Aquastar 7.2 GPM Indoor Tankless Natural Gas Water Heater
Bosch, Natural Gas Tankless Water Heater, Up To 3 Major Appliances Or Showers At 1 Time, Up To 7.2GPM At A 45°ree. Temp Rise, Built In Power Vent For Horizontal Or Vent Venting Up To 26' Max, Electronic Ignition, Modulating Gas Valve From 19,900 To 199,000 BTU Input, Computer Adjusted Fuel & Air Mixture For Optimal Performance, Min Flow Rate To Activate Burners Is .6 GPM , 3/4" Male Pipe Thread Gas & Water Connections, Natural Gas Pressure Min 4" Water Column, Max 14" Water Column, Water Pressure Minimum 30 PSI, Maximum 150 PSI, Must Use 3" Sealed Rigid PVC Pipe For Air Intake Not Included, Must Order & Use AE3ES Exhaust Kit For Horizontal Or Vent Exhaust Venting, For Additional Vertical Lengths Of 3" Gasketed Pipe, T & P Valve Included, 12 Year Warranty On Heat Exchanger, 2 Yrs On Parts, 120 V Outlet Needed To Run Power Vent & Controls, 3 Prong Pigtail Cord Included, For Outdoor Installs Part #AQOK Is Required, CSA Certified, Min Outdoor Temp Cannot Go Below Freezing.