The Home Depot offers the Paloma On Demand 7.4 gpm Propane Gas High Altitude Indoor Tankless Water Heater
, model no. PTG-74PVPH, for $749. Coupon code "TANKLESS40" cuts it to $449.40
. With free shipping
, that's $300 off and the lowest total price we've seen for a 7.4 gpm water heater. Sales tax is added where applicable. This 199,900 btu tankless water heater provides enough hot water to run up to three hot water appliances at one time.