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A. O. Smith Water Heater | 6.6 GPM, 120K BTU | NG Outdoor | ATO-140H 100
✅ 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 9:01 PM · 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.
- 🏷️A 18% cut from the official retail price adds further appeal.
- 📉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
0/20
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
✓ProLine XE Ultra-Low NOx Outdoor 120,000 BTU Condensing Natural Gas Tankless Water Heater ATO-140H. Continuous hto water flow rate up to 6.6 GPM.
✓Wall-mount design saves valuable space and allows for additional storage and flexibility.
✓Primary commercial-grade copper heat exchanger is 25x better than stainless steel at heat transfer, stabilizing outgoing water temperatures quicker.
✓Vents with 3” PVC up to 70 feet or 4" PVC up to 100 feet.
✓ncludes integrated temperature controls and advanced diagnostics to simplify troubleshooting.
⚙️ Specifications
Brand
A. O. Smith
Power Source
Natural Gas
Product Dimensions
13.87"W x 22.88"H
Special Feature
Ultra-Low NOx condensing technology
Color
White
Special Features
Ultra-Low NOx condensing technology
Flow Rate
6.6 gpm
Maximum Temperature
140 °F
Heat Output
120000 british thermal units
Mount Type
Wall
Item Dimensions W x H
13.87"W x 22.88"H
