AO Smith
A.O. Smith Signature 100 74-Gallon Natural Gas Water Heater
Best consistent hot water for large, demanding households.
A. O. Smith's 74-gallon water heater is designed to provide efficient and reliable hot water for households with 5 or more people when sized appropriately. With an environmentally friendly 75,100 BTU Ultra Low NOx gas burner, this gas water heater delivers 102 gallons of hot water in the first hour. It features an electronic gas valve that provides precise temperature control for optimum hot water delivery without the need for a separate thermostat. This water heater is ENERGY STAR certified and comes with a 6-year limited warranty.
$1249.00
More Signature 100 Series Options
Signature 100 Series 74-Gallon Short Natural Gas Water Heater
$3836.26
A.O. Smith Signature 100 40-Gallon Tall Electric Water Heater
$449.00
A.O. Smith Signature 100 40-Gallon Short Electric Water Heater
$479.00
A.O. Smith Signature 100 40-Gallons Tall Electric Water Heater
$416.73
A.O. Smith Signature 100 40-Gallon Tall Electric Water Heater
$449.00
Owner Satisfaction
4.5
/ 5
Category Rank
31
/ 222
#31 in Water Heaters
Price vs Category Average
+38%
Above average
Nominal Capacity
74
/ Gallons
Who it's for
- Large families or households with high hot water demands
- Homeowners seeking lower long-term operating costs for hot water
- Consumers prioritizing long-lasting equipment and peace of mind
Who should skip it
- Homeowners with limited utility room or tight installation spaces
- Budget-conscious buyers or those with immediate financial constraints
- Individuals without natural gas access or preferring electric appliances
Key Specs
Nominal Capacity
74 Gallons
ENERGY STAR Certified
Warranty
6-year limited
Family Size
5+ People
Fuel Type
Natural Gas
Energy Input
75,100 BTU per hour
First Hour Rating
102 Gallons
Water Heater Type
Tank
Features
- Efficient and reliable hot water for large households
- Environmentally friendly Ultra Low NOx gas burner
- High first-hour hot water delivery
- Precise temperature control with electronic gas valve
- ENERGY STAR certified for energy efficiency
- 6-year limited warranty for peace of mind
What customers say
Customers consistently praise its reliable performance and the abundant, continuous hot water it provides, making it a cornerstone of household comfort. Many highlight its robust build and the peace of mind that comes with a trusted brand. The unit is often noted for its ability to meet high demand, ensuring families never run out of hot water, even during peak usage. This consistent delivery of comfort and dependable operation stands out as a primary driver of positive sentiment.
Still have a question?
Ask Hayley anything about this product before you decide.