AO Smith ProLine® XE 50 Gallon Power Vent Gas Water Heater

The ProLine® XE 50-gallon Power Vent gas water heater offers up to ~0.72 UEF efficiency, a 50-gal tank, power-vent flexibility (2- or 3-in PVC/ABS/CPVC), and ensures reliable hot water delivery for high-demand buildings.

Tank Capacity: 50 Gallons
Efficiency: Up to 0.72 UEF
BTUs: 40000
Fuel Type: Natural Gas or Propane
Venting: Power Vent
First Hour Rating: Up to 79 Gallons

EASY FINANCING AVAILABLE
Get A Free Estimation

Overview of AO Smith ProLine® XE 50 Gallon Power Vent Gas Water Heater

The ProLine® XE 50-gallon Power Vent model is engineered for demanding domestic hot water needs, combining a generous tank size with power-vent flexibility for installation adaptability. It delivers ample first-hour output (around 79 gallons) and recovers efficiently to support multiple showers or fixtures in use.

Designed for efficiency and durability, this model uses features like a hot-surface ignitor, advanced electronic gas control, and a high-efficiency blower vent system that enables use of PVC/ABS/CPVC venting for longer runs and flexible layouts. Maintenance-friendly design includes a brass ball-type drain valve and a protected anode for extended tank life.

This heater also supports low-NOx burner options and meets relevant air-quality requirements, making it a strong choice for both traditional and constrained venting setups, while offering energy savings and top-tier hot water performance.

Technical Specifications

Tank Capacity	50 Gallons
Fuel Type	Natural Gas (Propane models available)
Efficiency	0.72 UEF
Max BTU Input	40,000-50,000 BTU/h (model-dependent)
First Hour Rating (FHR)	~79 Gallons
Venting	Power Vent, 2″ or 3″ PVC/ABS/CPVC, up to 180 equivalent feet
Recovery Rate	~56 gallons/hour at 90°F rise
Dimensions	60.5″ H x 19.5″ W x 22″ D
Weight (Empty)	~128 lbs
Warranty	6-Year limited tank & parts