Find any Amazon.com product's deals and best prices with our free Amazon deal finder and price tracker. Simply paste the product link (URL) or search by name in the box above. You'll get full product information, Deal Score, and all current deals. Shop smarter with the best Amazon deals finder in the USA.
x
Sorry, Something went wrong!
A. O. Smith Water Heater | 8 GPM, 190K BTU | NG Indoor, X3 | ATI-310CX3
✅ In stock
F
Grade
Analysis Confidence
59%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 18, 2026 8:13 AM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- 🏷️The listed retail price is trimmed by 9% at checkout.
- 📉It has been quite a while since a more competitive price was available, lending today's offer solid comparative value.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
7.68/20
Deal Strength
0/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
A. O. Smith Water Treatment
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓Enjoy Continuous Flow: This heater allows a flow rate up to 8.0 GPM while X3 Scale Prevention Technology prevents scale buildup and maintains like-new performance longer. No annual descaling or isolation valves required.
✓Lower Your Energy Cost: Using our high-efficiency tankless water heater with up to .81 Uniform Energy Factor (UEF). Includes integrated temperature controls and advanced diagnostics for easy operation.
✓Stable Water Temperature: The commercial-grade copper heat exchanger in the AO Smith tankless water heater provides 25x better heat transfer compared to steel. 15-year limited warranty on heat exchanger in residential applications.
✓Safe For Your Home: This tankless water heater comes with exhaust & water temperature safety control, overheat cut-off fuse and air-fuel ratio (AFR) sensor. Professional installation recommended. Contact A. O. Smith support at (800) 527-1953.
✓Space Efficient Design: Wall-mount saves valuable space and allows for additional storage and flexibility. Direct vent APNC35 concentric vent system, Vertical or Horizontal Vent Termination Installation. Convertible from natural gas to propane with included kit.
⚙️ Specifications
Brand
A. O. Smith
Power Source
Natural Gas
Product Dimensions
13.75"W x 20.5"H
Special Feature
Advanced Diagnostics, Anti-Freezing Protection, Field Convertible to Propane, Ultra-Low NOx, X3 Scale Prevention Technology
Color
White
Special Features
Advanced Diagnostics, Anti-Freezing Protection, Field Convertible to Propane, Ultra-Low NOx, X3 Scale Prevention Technology
Voltage
120 volts
Flow Rate
8 gpm
Maximum Temperature
194 °F
Heat Output
190000 british thermal units
Efficiency
0.81 UEF
