AO Smith BTR-400 100 Gallon BTR-400 390,000 BTU Commercial Gas Water Heater (NG)

The Master-Fit BTR series provides outstanding performance and maximum installation flexibility for both new construction and replacement applications. Multiple options for placement of water connections and low installation clearances are additional installer-friendly features. Includes The Eliminator which delivers automatic self-cleaning protection against buildup of lime and other sediments. This prevents the formation of barriers between the burner and water, reducing the risk of premature tank leaks.

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.