AO Smith ECT66

ECT-66 Water Heater Residential Electric 66 Gal ProMax 240V 4.5/4.5KW Tall

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AO Smith ECT66

AO Smith ECT-66 Water Heater Residential Electric 66 Gal ProMax 240V 4.5/4.5KW Tall
Rating: (1 Reviews)
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Quick Specs:
Brand: AO Smith
UPC: 671657082307
Stock Id: SID290866
Fuel Type: Electric
Height: 60.25"
Volts: 240V
Technical Details
Wattage: 4500
Installation: Indoor
Warranty: 6 yr Tank/6 yr Parts Limited
Application: Plumbing
Diameter: 22"
Usage: Residential
Number of Elements: 2
Capacity (Gallons): 51-100 Gallons
Energy factor: 0.88
Intended Household: 5 Person
1st Hour Delivery (Gallons): 72
R-Value: 16
Recovery 90F Rise: 21 GPH
Max Input (KW): 6
Tankless: No

A. O. Smith Corporation is a global leader applying innovative technology and energy-efficient solutions to products marketed worldwide. Our goal is to be a leading global water technology company, and our focus is on building this platform through new product development, global expansion, strategic acquisitions and partnerships. Today’s A. O. Smith is one of the world's leading manufacturers of residential and commercial water heating equipment, offering a comprehensive product line featuring the best-known brands in North America and China.


  • Water heater residential
  • Dynaclean dip tube
  • Coregard aluminum anode
  • Durable tamper-resistant brass drain valve
  • CSA certified and ASME rated T and P relief valve
  • 6-year tank / 6-year parts limited warranty
  • KW Input: 4.5
  • Gallon capacity: 66
  • Standard voltage: 240V
  • No. of elements: 2
  • Made in USA
  • Warranty: 6 Year limited
  • Overall dimension: 60.25" H x 20.5" W x 20.5" D


  • Installation: Indoor
  • Capacity (Gallons): 51-100 Gallons
  • Intended Household: 5 Person
  • Application: Plumbing
  • Fuel Type: Electric
  • Number of Elements: 2
  • Voltage: 240v
  • Max Input (KW): 6
  • Usage: Residential
  • Tankless: No
  • Height: 60.25"
  • Diameter: 22"
  • Recovery 90°F Rise: 21 GPH
  • 1st Hour Delivery (Gallons): 72
  • R-Value: 16
  • Energy Factor: 0.88
  • Warranty: 6 yr Tank/6 yr Parts Limited
  • Wattage: 4500

AO Smith ECT66 Reviews & Ratings

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Customer Reviews

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Sheila H. Cipolla
From: Orlando, FL
Reviewed on: November 9, 2012
Overall Rating: 4.0

Ease of Use:
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Verified Owner
"I got this water heater and it works good, also our electric bill has not gone up... so far so good...Excellent product." Will Recommend: Yes
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