Rheem Performance Platinum 29-Gallon Condensing Gas Water Heater

The Rheem Performance Platinum 29-Gallon Condensing Gas Water Heater (XG29T12XR60U0) is the rare premium-tier 29-gallon compact — 0.84 UEF condensing, 12-year warranty, 60,000 BTU recovery in a form factor designed for tight-clearance closets. The right pick when you need the 18" diameter of the compact form AND want condensing efficiency.

Headline specifications

• Model: XG29T12XR60U0
• Capacity: 29 gallons
• Fuel: Natural gas, power direct vent (2-pipe sealed combustion)
• BTU input: 60,000 BTU/h
• First Hour Delivery: 58 GPH
• Recovery: 60 GPH at 90°F rise
• UEF: 0.84 (condensing)
• Warranty: 12-year tank, 6-year parts
• Anode: anti-corrosion alloy
• Dimensions: 56" H × 18" diameter
• Venting: 2-pipe PVC sealed combustion
• EcoNet WiFi-ready

Who this model is for

The Platinum 29G Condensing exists for a narrow but real buyer set: homeowners with 18"-diameter closet clearance who want condensing efficiency without sacrificing compact form factor. Common scenarios: high-end apartments, condos with strict closet dimensions, downsized luxury retirement homes, ADUs where the install location demands both small footprint and modern efficiency.

The 0.84 UEF is enough to qualify for federal energy efficiency rebates in many jurisdictions. The 12-year warranty is the longest in Rheem's residential gas lineup.

For households without the 18"-diameter constraint, the Performance Platinum 50G at standard 22" diameter offers more capacity at similar price. For tight-budget 29G installs, drop to the atmospheric Performance 29G Compact at $400–$500 less.

Where it beats the alternatives

Vs Performance 29G Compact atmospheric: Platinum adds ~$500 upfront for 0.84 UEF vs 0.59 UEF, 12-year warranty vs 6-year, condensing combustion. Operating cost ~$60–$90/year less. Payback ~7 years.

Vs Performance Platinum 40G: Platinum 40G has 22" diameter — won't fit the 18"-diameter constraint. If your closet allows 22", the 40G is sized better.

Vs Rheem RTGH-95DVLN tankless: tankless is 0.94 UEF condensing, no tank thermal losses, $500–$700 more upfront. For long-horizon owners targeting maximum efficiency, tankless wins. For low-demand households (1–2 people) where a 29G tank meets capacity needs, the compact condensing is the simpler install.

Where it falls short

$1,149–$1,349 MSRP is premium pricing for 29 gallons. The math only works for buyers genuinely constrained by the 18" diameter requirement.

0.84 UEF is excellent for a condensing tank but trails 0.96 UEF condensing tankless. Over a 12-year lifecycle, tankless saves another $100–$150/year — meaningful for high-demand households.

Power direct vent requires 120V outlet + condensate drain. The condensate drain requirement complicates closet installs where no floor drain exists; condensate pump retrofit adds $150–$300.

58 GPH FHD is the limit. Two-shower households will exceed capacity. The high recovery (60 GPH) partially compensates but bath-fill demand exhausts the tank.

12-year tank warranty but 6-year parts — the heat exchanger and burner controls are covered shorter than the tank shell.

Install considerations

2-pipe sealed combustion PVC venting. Both intake and exhaust terminate to outside. 120V outlet. Condensate drain or pump. Permit and licensed installer typically required.

Install cost: $1,400–$2,400 like-for-like with existing condensing infrastructure; $2,800–$4,800 for atmospheric-to-condensing conversion requiring venting + electrical + condensate work.

Maintenance

• Annual flush
• Anode check year 5, replace year 7
• Condensate drain inspection every 6 months
• T&P valve test annually
• Heat exchanger inspection at year 5 by certified technician
• EcoNet firmware updates via app

Bottom line

The Rheem Performance Platinum 29G Condensing (XG29T12XR60U0) is the niche premium pick — condensing efficiency + 12-year warranty in an 18"-diameter form factor. Right buyer is constrained by closet diameter AND wants high efficiency. For unconstrained installs, the Performance Platinum 50G offers more capacity. For tight-budget compact installs, the Performance 29G atmospheric saves $400–$500.