Rheem has been building water heaters for decades, and the RTG-95DVLN-3 is a serious piece of hardware for a demanding household. Its core advantage is the 9.5 GPM flow rate, which is enough to run two major fixtures simultaneously without a temperature drop. You can have a shower going while the dishwasher runs, and no one gets a cold surprise.

The key to its consistent performance is the Hot Start Programming. This feature eliminates the annoying cold water sandwich that plagues many tankless units during back-to-back uses. It keeps the system in a ready state, so the second shower of the morning starts just as hot as the first. The 199,900 BTU burner responds quickly, and the maximum 140°F output gives you plenty of adjustment room.

This is an indoor, non-condensing model, so proper venting is a critical and potentially costly installation factor. It requires dedicated stainless steel venting, which you must account for in your budget. For the right home with the correct setup, it delivers relentless, on-demand hot water with the reliability Rheem is known for.