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When Is It Time to Replace Your Tankless Gas Water Heater? Lessons from Chip Wade’s RTG-R Upgrade

August 10, 2026

Tankless gas water heaters are known for their long service life, reliable hot water, and energy efficiency. But even the best systems eventually reach a point where homeowners must decide whether to repair or replace. That was the decision faced by television host and home renovation expert Chip Wade when it came time to upgrade the three Rheem® RTG tankless gas water heaters serving his home. A System That Delivered for Years Chip’s original three-unit RTG tankless water heater system was installed when he built his home 14 years ago. The manifolded setup, paired with an external recirculation system, was…

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