A.O. Smith GCV-40 ProMax 40-Gallon 40,000 BTU Tall Natural Gas Water Heater
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IMPORTANT NOTE: This product was officially discontinued by the manufacturer on May 11, 2015.
The A.O. Smith ProMax Tall 40-Gallon Residential Natural Gas Water Heater (GCV-40) is an economical yet exceptional performer designed perfectly for households of 2 to 3 people. Equipped with advanced C3 technology and an eco-friendly burner, it delivers reliable hot water output while maintaining reduced emissions and excellent long-term durability.
- Model Number: GCV-40
- Capacity: 40 Gallons (Tall Configuration)
- Fuel Type: Natural Gas (40,000 BTU Input)
- Household Size: Ideal for 2-3 person households
- Dimensions & Weight: 61.75" Height x 18" Diameter x 18" Depth; weighs 138 lbs
- Performance Metrics: 70-gallon first-hour delivery, 41 GPH recovery at 90°F rise, 0.59 Energy Factor, and an R-8 insulation value
- Connections: 3/4" water connection, 1/2" gas connection, and accommodates 3" or 4" vent sizes
- Burner Technology: Patented "Green Choice" gas burner reduces NOx emissions by up to 33%, complying with Southern California and Texas requirements
- Ignition: Push-button Piezo ignitor allows for fast and easy one-handed spark lighting
- Tank Protection: Features a Coregard magnesium anode rod and Permaglas glass coating to protect the solid steel tank from rust
- Sediment Reduction: Dynaclean PEX cross-linked polymer diffuser dip tube minimizes lime and sediment buildup to maximize hot water output
- Valves & Fittings: Includes external heat trap nipples, a durable, tamper-resistant brass drain valve, and a CSA-certified, ASME-rated T&P relief valve
- Warranty: Originally backed by a 6-Year Tank and 6-Year Parts Limited Warranty
- SKU AOSGCV40
Most in-stock items ship within 1–3 business days. Once shipped, you will receive a confirmation email with tracking. Special-order items or items shipped from partner warehouses may require additional processing time. Orders ship via UPS or USPS depending on the item and destination. If you need a specific carrier, please contact us before placing your order.
