Question: are there any rebates for tankless water heaters?
Answer: The credit amount for Gas, Oil, Propane Water Heaters, including tankless units, is $300. That means if you installed a qualifying tankless water heater last year, you could get the credit on the return you file in 2020 (for 2019). ... “Water Heaters (non-solar)” are a part of Residential Energy Property Costs.