government shutdown banner

There has been a lapse in Environmental Protection Agency appropriations.  EPA intends to keep the ENERGY STAR website, tools, and resources available, however they will not be updated regularly.  If you submit a question, application, or request to EPA, it may not be processed during this period. 

Access to ENERGY STAR
API, Data Set or  Excel File
 

Find and Compare

  • Together we can create a healthier planet for all of us.

    LEARN MORE
    Tip Image
Gas Water Heaters Header Image

ENERGY STAR Certified
Gas Water Heaters

Visit the  Gas Water Heaters page for usage tips and buying guidelines.

457 Records Found
Filter Your Results

FuelField details
TypeField details
Brand NameField details
A
B
E
F
G
H
J
K
L
M
N
R
S
T
V
Storage Volume (gallons)Field details
First Hour Rating (gallons)Field details
Maximum Gallons per MinuteField details
Max. Input Rate for Gas Products (kBTU/hr)Field details
Connected CapableField details
MarketsField details

Rebate Finder

Rebate Finder Icon

ENERGY STAR partners sponsor rebates on certified products. Enter a zip code below to find deals near you!

Learn More
About Products

Looking for more information about how to save with ENERGY STAR products?

Sort direction image

compare 2-4 products
Compare
Gas Tankless - Propane
Uniform Energy Factor (UEF):
0.96
Maximum Gallons Per Minute:
5.2
Max. Input Rate for Gas Products (Btu/hr):
180000
Gas Tankless - Propane
Uniform Energy Factor (UEF):
0.96
Maximum Gallons Per Minute:
5.2
Max. Input Rate for Gas Products (Btu/hr):
180000
Gas Tankless - Natural Gas, Propane
Uniform Energy Factor (UEF):
0.96
Maximum Gallons Per Minute:
4.6
Max. Input Rate for Gas Products (Btu/hr):
157000
Gas Tankless - Natural Gas, Propane
Uniform Energy Factor (UEF):
0.96
Maximum Gallons Per Minute:
4.6
Max. Input Rate for Gas Products (Btu/hr):
157000
Gas Tankless - Propane
Uniform Energy Factor (UEF):
0.96
Maximum Gallons Per Minute:
4.6
Max. Input Rate for Gas Products (Btu/hr):
157000
Gas Tankless - Propane
Uniform Energy Factor (UEF):
0.96
Maximum Gallons Per Minute:
4.6
Max. Input Rate for Gas Products (Btu/hr):
157000
Gas Tankless - Propane
Uniform Energy Factor (UEF):
0.96
Maximum Gallons Per Minute:
4.6
Max. Input Rate for Gas Products (Btu/hr):
157000
Gas Tankless - Propane
Uniform Energy Factor (UEF):
0.96
Maximum Gallons Per Minute:
4.6
Max. Input Rate for Gas Products (Btu/hr):
157000
Gas Tankless - Natural Gas
Uniform Energy Factor (UEF):
0.96
Maximum Gallons Per Minute:
4.6
Max. Input Rate for Gas Products (Btu/hr):
157000
Gas Tankless - Natural Gas
Uniform Energy Factor (UEF):
0.96
Maximum Gallons Per Minute:
4.6
Max. Input Rate for Gas Products (Btu/hr):
157000
Gas Tankless - Natural Gas
Uniform Energy Factor (UEF):
0.96
Maximum Gallons Per Minute:
4.6
Max. Input Rate for Gas Products (Btu/hr):
157000
Gas Tankless - Natural Gas, Propane
Uniform Energy Factor (UEF):
0.96
Maximum Gallons Per Minute:
4.6
Max. Input Rate for Gas Products (Btu/hr):
157000
Gas Tankless - Natural Gas
Uniform Energy Factor (UEF):
0.96
Maximum Gallons Per Minute:
4.6
Max. Input Rate for Gas Products (Btu/hr):
157000
Gas Tankless - Natural Gas
Uniform Energy Factor (UEF):
0.96
Maximum Gallons Per Minute:
4.6
Max. Input Rate for Gas Products (Btu/hr):
157000
Gas Tankless - Propane
Uniform Energy Factor (UEF):
0.96
Maximum Gallons Per Minute:
4.6
Max. Input Rate for Gas Products (Btu/hr):
157000
Gas Tankless - Natural Gas
Uniform Energy Factor (UEF):
0.96
Maximum Gallons Per Minute:
4.6
Max. Input Rate for Gas Products (Btu/hr):
157000
Gas Tankless - Propane
Uniform Energy Factor (UEF):
0.96
Maximum Gallons Per Minute:
5.2
Max. Input Rate for Gas Products (Btu/hr):
180000
Gas Tankless - Natural Gas
Uniform Energy Factor (UEF):
0.96
Maximum Gallons Per Minute:
5.8
Max. Input Rate for Gas Products (Btu/hr):
199000
Gas Tankless - Natural Gas
Uniform Energy Factor (UEF):
0.96
Maximum Gallons Per Minute:
5.8
Max. Input Rate for Gas Products (Btu/hr):
199000
Gas Tankless - Propane
Uniform Energy Factor (UEF):
0.96
Maximum Gallons Per Minute:
5.8
Max. Input Rate for Gas Products (Btu/hr):
199000