AO Smith Gas Water Heaters

AO Smith offers 22 gas water heaters models in the lineup we track. This page is the AO Smith-specific cut of the broader Gas Water Heaters water heaters category — same product class, narrowed to the AO Smith catalog only.

About AO Smith

<p>AO Smith's water heaters lineup is one of the most-shopped in the category — and there are concrete reasons it stays that way year after year. This page is the complete index of every AO Smith water heaters model we currently track, with verified specifications, current Amazon pricing, aggregated ratings, and head-to-head comparison links against the strongest competitors in each price tier. Before you start filtering, the next several minutes will give you the context you need to make a confident pick.</p> <h2 id="brand-overview">About AO Smith in water heaters</h2> <p>On warranty length...

For the complete AO Smith lineup across all sub-types and capacities, see the AO Smith Water Heaters hub.

AO Smith Gas Water Heaters models we track

• AO Smith Signature Premier 50-Gallon Gas Water Heater (GCV-50-300) — 50-gallon natural gas — AO Smith's most-shopped residential model.
• AO Smith Cyclone Mxi 100-Gallon Commercial Gas Water Heater (BTH-150) — Commercial Cyclone Mxi — 100-gallon condensing high-output for restaurants and multifamily.
• AO Smith Vertex Power Direct Vent 50-Gallon Gas Water Heater (GPDX-50) — Vertex Power Direct Vent — high-efficiency 50-gallon gas with sealed combustion. 0.90 UEF.
• AO Smith ProLine Master 50-Gallon Power Vent Gas Water Heater (GPDH-50) (GPDH-50) — ProLine Master 50-gallon power-vent gas — closet-install replacement option. 76,000 BTU, 10-year warranty, PVC venting up to 60 ft.
• AO Smith ProLine Tankless 10 GPM Gas Water Heater (ATI-540H-N) — 10 GPM condensing tankless — AO Smith's top residential tankless.
• AO Smith Cyclone Xi 100-Gallon Commercial Gas Water Heater (BTH-199) (BTH-199) — Light-commercial 100-gallon condensing gas water heater — 199K BTU helical-coil burner, 95% thermal efficiency, 290 GPH first-hour delivery. The BTH-199 is the...
• AO Smith ProLine Master 75-Gallon Gas Water Heater (GPVL-75) — 75-gallon high-capacity gas for large households.
• AO Smith Vertex Power Direct Vent 75-Gallon Gas Water Heater (GPDX-75) — 75-gallon Vertex — premium high-recovery condensing-grade gas tank.

Other Gas water heaters brands

If you're cross-shopping gas water heaters beyond AO Smith, the following brands also ship in this category:

• Rheem Gas
• Bradford White Gas
• Rinnai Gas
• Ruud Gas
• Navien Gas
• Noritz Gas
• Bosch Gas
• State Gas

About Gas Water Heaters water heaters

Natural gas water heaters dominate US residential water heating where natural gas service is available — roughly 49% of US homes have gas water heaters. They split into tank (40/50/75/80-gallon storage with gas burner) and tankless (on-demand condensing) sub-types, with venting variations (atmospheric chimney, power-vent PVC, direct-vent sealed combustion) that determine which install scenarios fit.

• Operating cost: natural gas is consistently the cheapest residential water heater fuel by per-BTU pricing in most US markets — typically 50–60% of equivalent electric resistance cost
• Recovery speed: a 40,000 BTU gas burner delivers ~40 GPH at 90°F rise — tw...

  For the complete gas buyer's guide (all brands, full comparison framework), see the Gas Water Heaters category hub.

  Other AO Smith filters

  Explore AO Smith from other angles:

  • AO Smith Tankless
  • AO Smith Tank / Storage
  • AO Smith Heat Pump / Hybrid
  • AO Smith Solar
  • AO Smith 6 Gallon
  • AO Smith 10 Gallon
  • AO Smith 20 Gallon
  • AO Smith 30 Gallon
  • AO Smith Electric
  • AO Smith Propane
  • All AO Smith Water Heaters