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The Rheem RTGH-84DVLN is an indoor, natural gas condensing tankless water heater rated at 8.4 GPM, enough for two showers plus a running appliance in most homes. It is Energy Star qualified, with a stainless steel condensing heat exchanger and a 0.26 energy factor that puts it among the more efficient gas tankless units. Rheem's line is known for a digital control panel, adjustable temperature settings and a recirculation-ready design, though the brand's tankless units draw mixed reports on long-term reliability and parts availability compared with Rinnai and Navien. It suits households of three to five people replacing a tank or upgrading to endless hot water, especially where a condensing unit's venting and drain can be accommodated.
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Availability unknownSold by efaucets (99.7% positive, 3,500 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.
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Lowest price we've seen: $1,047.68 on Nov 10 at Wallington Plumbing Supply. Tracked across 3 stores since Nov 10.
Owners of Rheem condensing tankless heaters generally praise the endless hot water and the efficiency gains over a tank, and many find the digital temperature control easy to live with. Complaints tend to center on reliability after a few years, error codes, and the cost of service calls when something fails.
