Just purchased an old house that needs a new hot water heater and a new boiler (for baseboard heat). Doing research on tankless and indirect water heaters and weighing them again conventional storage units. I'm obviously going to talk to professional plumbers on this, but was wondering if anyone had suggestions. House also needs some electrical upgrades (new electrical box), is in Pennsylvania, and in a dense urban area. Looking to stay in there for a while and looking for options that are considering the environmental impact in the equation.