Hi! We're in the process of building a new home and are exploring the options for water heaters. There is one called the Super Supreme tankless water heater from Advanced Tech that is supposed to heat the water instantaneously for the whole house. Do you know anything about this system? Also, there are several brands of tank type water heaters with ten to twelve year warranties, such as Richmond, U.S. Craftmaster, etc. We haven't been able to figure out if one brand is better than another. Can you help? Thanks.