American Standard Water Heaters

American Standard is a heritage plumbing fixture brand (toilets, sinks, faucets, tubs) that has historically licensed its name to various water heater manufacturers as a brand extension. American Standard water heaters are not manufactured by American Standard — they\'re manufactured by major OEMs (AO Smith family or Rheem family depending on year and product) under licensing agreements.

The American Standard water heater lineup

• Standard Gas Tanks — AS-40 (40-gal), AS-50 (50-gal volume)
• Standard Electric Tanks — AS-50E (50-gal)

Who actually manufactures American Standard water heaters?

American Standard is primarily a plumbing fixture brand. Its water heaters are licensed products manufactured by:

• Rheem (some product lines and eras)
• AO Smith / State (some product lines and eras)
• Other contract manufacturers depending on retailer partnership

The American Standard water heater badge is essentially a rebadge of mainstream OEM products. Decode the manufacturer by the model number prefix (similar to Kenmore) or contact American Standard customer service for parts and service.

When American Standard makes sense

The American Standard brand badge appeals primarily to:

• Buyers who already use American Standard plumbing fixtures and want brand consistency
• Builders/contractors with American Standard supply relationships
• Buyers who value the heritage American Standard plumbing brand recognition

The water heater itself is functionally equivalent to mainstream Rheem or AO Smith family equivalents at the same warranty tier.

Which American Standard is right?

1. Standard 2-3 person home gas: AS-40
2. Volume 3-4 person home gas: AS-50
3. Electric option: AS-50E
4. Premium / heat pump: Choose Rheem or AO Smith mainline directly (American Standard doesn\'t differentiate at premium tier)

Warranty

• Standard 6-year tank warranty
• Parts 6 years
• Labor not covered

Warranty support typically routes through the actual manufacturer (Rheem or AO Smith) for parts.

Where to buy

• Plumbing supply houses with American Standard distribution
• Limited big-box presence (Rheem and AO Smith dominate that channel under their own brands)
• americanstandard.com

Bottom line

American Standard water heater is a licensed-brand product manufactured by major OEMs (Rheem or AO Smith depending on year/line). Functionally equivalent to mainstream Rheem Performance or AO Smith Signature at the same warranty tier. Choose for brand consistency with American Standard plumbing fixtures; otherwise, choose the underlying OEM brand directly for clearer warranty and parts paths.