HomeDepot.com takes 10% off through 5/4 via code SAVE22. I highly recommend going green and installing a tankless water heater if only because it makes financial sense. Aside from 10% off, you now get a tax credit for 30% off your purchase price (see more info here; this is similar to a 100% tax deduction). This means you can get a 6.6 GPM Rheem EcoSense Tankless Water Heater for $899.10 after the 10% off cuts the $999 price, plus get a $270 tax credit, for a $629 net price. Tankless heaters have two huge benefits: 1) water is heated only when used; 2) the supply of hot water is unlimited. The Department of Energy says this could cut your energy costs by 24-34%. Saving $30 per month for 2 years is $720. There is a slightly smaller 5.3 GPM model for $150 less or a 7.4 GPM model for $200 more.