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The Rheem RTGH-84DVLP-3 is an indoor, propane-fired condensing tankless water heater built for whole-home hot water. It runs at up to 8.4 gallons per minute and its condensing design captures heat that conventional tankless units vent away, so it uses less propane per gallon heated. Hot-Start Programming keeps the unit primed between back-to-back draws to cut cold-water bursts, and a half-inch side clearance lets it fit tight closets. It suits homeowners replacing a tank or upgrading to high efficiency, and contractors who install and service alone. Against non-condensing rivals it is more efficient and needs a condensate drain, which adds install work.
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The Rheem RTGH-84DVLP-3 is a super high-efficiency condensing tankless water heater that runs on propane and is designed for indoor installation. It is part of the RTGH Series and has a newer, more compact design that is up to 20% smaller and lighter, so one person can install and service it.
Hot-Start Programming keeps the unit in a ready state between back-to-back uses, which minimizes bursts of cold water. It needs only 1/2" of side-to-side clearance, so it can be installed in tight spaces. It meets the 14 ng/J NOx requirements and complies with SCAQMD Rule 1146.2.
The unit is compatible with a 1/2" gas line, subject to local code. PVC vent runs can be up to 60' with 2" pipe or 150' with 3" pipe. An Outdoor Conversion Kit (RTGH-X) is sold separately.
