Commercial Water Heaters

Skip to accessibility statement

Free shipping on orders over $99

●

Your Zip:

ORDER STATUS

Your Zip:

CONTACT & SUPPORT

Live Chat Offline: Email Us

CART

SIGN IN
Shop by Category
Plumbing
Heating
HVAC
Electrical
PEX
Fittings
Valves
Tools
Resources
Our Team
Account
Order History
Returns
Customer Support
Give Us Feedback
Tools
Reorder
Quick Order
Saved Carts
Lists
Resources
PEX Plumbing
PEX Tools
Radiant Heat
Boiler Room
Plumbing Supplies
Air Conditioning
Video Library
Project Calculators
Find Parts For Your Unit

Filter menu expanded

Filters

320 items

Reset

SORT

Product Availability
–

Show In Stock Only</strong> Filter (60)

Show In Stock Only (60)

Category
–

AO Smith Heaters (284)

Bradford White Heaters (3)

Eccotemp Heaters (3)

Lochinvar Heaters (27)

Rheem Heaters (3)

Fuel Type
–

Electric Filter (207)

Electric (207)

Natural Gas Filter (86)

Natural Gas (86)

Propane Filter (27)

Propane (27)

BTU Input
–

70,000 - 80,000 Filter (9)

70,000 - 80,000 (9)

90,000 - 100,000 Filter (2)

90,000 - 100,000 (2)

100,000+ Filter (87)

100,000+ (87)

Capacity (Gallons)
–

0 - 9 Filter (16)

0 - 9 (16)

10 - 19 Filter (20)

10 - 19 (20)

20 - 29 Filter (4)

20 - 29 (4)

30 - 39 Filter (13)

30 - 39 (13)

40 - 49 Filter (14)

40 - 49 (14)

50 - 59 Filter (41)

50 - 59 (41)

60 - 69 Filter (15)

60 - 69 (15)

70 - 79 Filter (13)

70 - 79 (13)

80 - 89 Filter (53)

80 - 89 (53)

90 - 99 Filter (37)

90 - 99 (37)

Efficiency
–

0 - 80% Filter (47)

0 - 80% (47)

80 - 85% Filter (48)

80 - 85% (48)

85 - 90% Filter (1)

85 - 90% (1)

90 - 95% Filter (12)

90 - 95% (12)

95% + Filter (31)

95% + (31)

Price Range
–

$100 to $200 Filter (3)

$100 to $200 (3)

$200 to $300 Filter (12)

$200 to $300 (12)

$300 to $400 Filter (2)

$300 to $400 (2)

$500 to $600 Filter (2)

$500 to $600 (2)

$600 to $700 Filter (1)

$600 to $700 (1)

$1000 to $1500 Filter (28)

$1000 to $1500 (28)

$1500 to $2000 Filter (9)

$1500 to $2000 (9)

$2000 to $2500 Filter (9)

$2000 to $2500 (9)

$2500 to $3000 Filter (14)

$2500 to $3000 (14)

$3000 to $3500 Filter (1)

$3000 to $3500 (1)

Home

Plumbing Supplies

Water Heaters

Commercial Water Heaters

Need a little help?

320 items

Grid

List

DSE-50-30 Compare Checkbox

Compare

DSE-50, 50 Gallon 30 KW Dura-Power Commercial Electric Water Heater

SKU: DSE-50-30

AO Smith

SKU: DSE-50-30

Brand: AO Smith

CALL TO ORDER

1-888-757-4774

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

BTHL-400A Compare Checkbox

Compare

220 Gallon BTHL-400 399,900 BTU Cyclone LV Condensing Commercial Gas Water Heater with Modulating Burner (NG/LP)

SKU: BTHL-400A

AO Smith

SKU: BTHL-400A

Brand: AO Smith

$25,153.00 each

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

BTL-154 Compare Checkbox

Compare

81 Gallon BTL-154 154,000 BTU Master-Fit Ultra-Low NOx Commercial Gas Water Heater (NG)

SKU: BTL-154

AO Smith

SKU: BTL-154

Brand: AO Smith

$11,883.40 each

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

BTR-251A Compare Checkbox

Compare

65 Gallon BTR-251 251,000 BTU ASME Commercial Gas Water Heater (NG)

SKU: BTR-251A

AO Smith

SKU: BTR-251A

Brand: AO Smith

$13,613.31 each

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

CEHD-120A-45-3CF Compare Checkbox

Compare

119 Gallon ElectriFLEX Heavy Duty Electric Water Heater

SKU: CEHD-120A-45-3CF

Bradford White

SKU: CEHD-120A-45-3CF

Brand: Bradford White

$11,421.23 each

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

BT-60-LP Compare Checkbox

Compare

60 Gallon BT-60 54,000 BTU Commercial Liquid Propane Water Heater (LP)

SKU: BT-60-LP

AO Smith

SKU: BT-60-LP

Brand: AO Smith

$3,632.33 each

Out of Stock

Get it by Thu, Dec 3 - Mon, Dec 14

Out of Stock

Get it by Thu, Dec 3 - Mon, Dec 14

BTL-366A Compare Checkbox

Compare

86 Gallon BTL-366 366,000 BTU Master-Fit Ultra-Low NOx ANSI Commercial Gas Water Heater (NG)

SKU: BTL-366A

AO Smith

SKU: BTL-366A

Brand: AO Smith

$15,836.84 each

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

BTR-250A Compare Checkbox

Compare

100 Gallon BTR-250 250,000 BTU ASME Commercial Gas Water Heater (NG)

SKU: BTR-250A

AO Smith

SKU: BTR-250A

Brand: AO Smith

$12,905.00 each

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

BTR-251 Compare Checkbox

Compare

65 Gallon BTR-251 251,000 BTU Commercial Gas Water Heater (NG)

SKU: BTR-251

AO Smith

SKU: BTR-251

Brand: AO Smith

$10,949.70 each

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

BTH-400 Compare Checkbox

Compare

119 Gallon BTH-400 399,900 BTU Cyclone Mxi Non-ASME Commercial Gas Water Heater (NG)

SKU: BTH-400

AO Smith

SKU: BTH-400

Brand: AO Smith

$15,554.00 each

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

BTL-120 Compare Checkbox

Compare

81 Gallon BTL-120 120,000 BTU Master-Fit Ultra-Low NOx Commercial Gas Water Heater (NG)

SKU: BTL-120

AO Smith

SKU: BTL-120

Brand: AO Smith

$9,033.50 each

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

BTL-199 Compare Checkbox

Compare

100 Gallon BTL-199 199,000 BTU Master-Fit Ultra-Low NOx Commercial Gas Water Heater (NG)

SKU: BTL-199

AO Smith

SKU: BTL-199

Brand: AO Smith

$9,120.90 each

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

BPD-80 Compare Checkbox

Compare

75 Gallon BPD-80 76,000 BTU Conservationist Power Direct Vent Commercial Gas Water Heater (NG)

SKU: BPD-80

AO Smith

SKU: BPD-80

Brand: AO Smith

$5,647.43 each

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

AHP140-480 Compare Checkbox

Compare

Veritus Air Source Heat Pump Water Heater, 480V, 3 PH

SKU: AHP140-480

Lochinvar

SKU: AHP140-480

Brand: Lochinvar

$50,612.29 each

Out of Stock

Get it by Thu, Dec 3 - Mon, Dec 14

Out of Stock

Get it by Thu, Dec 3 - Mon, Dec 14

DSE-120-18 Compare Checkbox

Compare

DSE-120, 120 Gallon 18 KW Dura-Power Commercial Electric Water Heater

SKU: DSE-120-18

AO Smith

SKU: DSE-120-18

Brand: AO Smith

CALL TO ORDER

1-888-757-4774

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

DSE-120-30 Compare Checkbox

Compare

DSE-120, 120 Gallon 30 KW Dura-Power Commercial Electric Water Heater

SKU: DSE-120-30

AO Smith

SKU: DSE-120-30

Brand: AO Smith

CALL TO ORDER

1-888-757-4774

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

DVE-80-18 Compare Checkbox

Compare

DVE-80, 80 Gallon 18 KW Lime Tamer Commercial Electric Water Heater

SKU: DVE-80-18

AO Smith

SKU: DVE-80-18

Brand: AO Smith

CALL TO ORDER

1-888-757-4774

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

DRE-120-27 Compare Checkbox

Compare

DRE-120, 120 Gallon 27 KW Lime Tamer Commercial Electric Water Heater

SKU: DRE-120-27

AO Smith

SKU: DRE-120-27

Brand: AO Smith

CALL TO ORDER

1-888-757-4774

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

DVE-120-18 Compare Checkbox

Compare

DVE-120, 120 Gallon 18 KW Lime Tamer Commercial Electric Water Heater

SKU: DVE-120-18

AO Smith

SKU: DVE-120-18

Brand: AO Smith

CALL TO ORDER

1-888-757-4774

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

DVE-52-30 Compare Checkbox

Compare

DVE-52, 50 Gallon 30 KW Lime Tamer Commercial Electric Water Heater

SKU: DVE-52-30

AO Smith

SKU: DVE-52-30

Brand: AO Smith

CALL TO ORDER

1-888-757-4774

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

DVE-52-36 Compare Checkbox

Compare

DVE-52, 50 Gallon 36 KW Lime Tamer Commercial Electric Water Heater

SKU: DVE-52-36

AO Smith

SKU: DVE-52-36

Brand: AO Smith

CALL TO ORDER

1-888-757-4774

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

DVE-80-27 Compare Checkbox

Compare

DVE-80, 80 Gallon 27 KW Lime Tamer Commercial Electric Water Heater

SKU: DVE-80-27

AO Smith

SKU: DVE-80-27

Brand: AO Smith

CALL TO ORDER

1-888-757-4774

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

DSE-40-15-480V-3PH Compare Checkbox

Compare

DSE-40, 40 Gallon 15 KW Dura-Power Commercial Electric Water Heater (3Ph, 480V)

SKU: DSE-40-15-480V-3PH

AO Smith

SKU: DSE-40-15-480V-3PH

Brand: AO Smith

$5,669.34 each

Out of Stock

Get it by Thu, Dec 3 - Mon, Dec 14

Out of Stock

Get it by Thu, Dec 3 - Mon, Dec 14

DSE-50-15 Compare Checkbox

Compare

DSE-50, 50 Gallon 15 KW Dura-Power Commercial Electric Water Heater

SKU: DSE-50-15

AO Smith

SKU: DSE-50-15

Brand: AO Smith

CALL TO ORDER

1-888-757-4774

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

DVE-120-36 Compare Checkbox

Compare

DVE-120, 120 Gallon 36 KW Lime Tamer Commercial Electric Water Heater

SKU: DVE-120-36

AO Smith

SKU: DVE-120-36

Brand: AO Smith

CALL TO ORDER

1-888-757-4774

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

DVE-120-45 Compare Checkbox

Compare

DVE-120, 120 Gallon 45 KW Lime Tamer Commercial Electric Water Heater

SKU: DVE-120-45

AO Smith

SKU: DVE-120-45

Brand: AO Smith

CALL TO ORDER

1-888-757-4774

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

DSE-20-18 Compare Checkbox

Compare

DSE-20, 20 Gallon 18 KW Dura-Power Commercial Electric Water Heater

SKU: DSE-20-18

AO Smith

SKU: DSE-20-18

Brand: AO Smith

CALL TO ORDER

1-888-757-4774

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

DSE-40-24 Compare Checkbox

Compare

DSE-40, 40 Gallon 24 KW Dura-Power Commercial Electric Water Heater

SKU: DSE-40-24

AO Smith

SKU: DSE-40-24

Brand: AO Smith

CALL TO ORDER

1-888-757-4774

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

DSE-50-18 Compare Checkbox

Compare

DSE-50, 50 Gallon 18 KW Dura-Power Commercial Electric Water Heater

SKU: DSE-50-18

AO Smith

SKU: DSE-50-18

Brand: AO Smith

CALL TO ORDER

1-888-757-4774

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

MELD75-TB Compare Checkbox

Compare

75 Gallon Tall Marathon Eclipse Light-Duty Electric Water Heater w/ Limited 10 Year Warranty (240v), MELD75-TB

SKU: MELD75-TB

Rheem

SKU: MELD75-TB

Brand: Rheem

$7,895.59 each

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

SWA500N Compare Checkbox

Compare

120 Gallon - 500,000 BTU Shield ASME Commercial Water Heater (Nat Gas)

SKU: SWA500N

Lochinvar

SKU: SWA500N

Brand: Lochinvar

$27,146.82 each

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

SLA401-125 Compare Checkbox

Compare

120 Gallon - 399,999 BTU Shield ASME Commercial Water Heater (LP Gas)

SKU: SLA401-125

Lochinvar

SKU: SLA401-125

Brand: Lochinvar

$16,949.99 each

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

100076525 Compare Checkbox

Compare

NG Manifold, 100076525

SKU: 100076525

AO Smith

SKU: 100076525

Brand: AO Smith

$154.81 each

Backorder

Get it by Wed, Dec 16 - Tue, Jan 19

Backorder

Get it by Wed, Dec 16 - Tue, Jan 19

100109229 Compare Checkbox

Compare

Triple Manifold Kit for AO Smith Water Heater

SKU: 100109229

AO Smith

SKU: 100109229

Brand: AO Smith

$2,083.34 each

Backorder

Get it by Wed, Dec 16 - Tue, Jan 19

Backorder

Get it by Wed, Dec 16 - Tue, Jan 19

DSE-100-54 Compare Checkbox

Compare

DSE-100, 100 Gallon 54 KW Dura-Power Commercial Electric Water Heater

SKU: DSE-100-54

AO Smith

SKU: DSE-100-54

Brand: AO Smith

CALL TO ORDER

1-888-757-4774

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

DSE-100-75 Compare Checkbox

Compare

DSE-100, 100 Gallon 75 KW Dura-Power Commercial Electric Water Heater

SKU: DSE-100-75

AO Smith

SKU: DSE-100-75

Brand: AO Smith

CALL TO ORDER

1-888-757-4774

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

DSE-30-18 Compare Checkbox

Compare

DSE-30, 30 Gallon 18 KW Dura-Power Commercial Electric Water Heater

SKU: DSE-30-18

AO Smith

SKU: DSE-30-18

Brand: AO Smith

CALL TO ORDER

1-888-757-4774

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

DSE-65-30 Compare Checkbox

Compare

DSE-65, 65 Gallon 30 KW Dura-Power Commercial Electric Water Heater

SKU: DSE-65-30

AO Smith

SKU: DSE-65-30

Brand: AO Smith

CALL TO ORDER

1-888-757-4774

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

DSE-80-30 Compare Checkbox

Compare

DSE-80, 80 Gallon 30 KW Dura-Power Commercial Electric Water Heater

SKU: DSE-80-30

AO Smith

SKU: DSE-80-30

Brand: AO Smith

CALL TO ORDER

1-888-757-4774

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

LET-55-8 Compare Checkbox

Compare

55G Tall Electric Water Heater, 4.5kW, 240V, 1PH, 150 PSI

SKU: LET-55-8

Lochinvar

SKU: LET-55-8

Brand: Lochinvar

$1,658.89 each

Out of Stock

Get it by Thu, Dec 3 - Mon, Dec 14

Out of Stock

Get it by Thu, Dec 3 - Mon, Dec 14

DSE-65-36 Compare Checkbox

Compare

DSE-65, 65 Gallon 36 KW Dura-Power Commercial Electric Water Heater

SKU: DSE-65-36

AO Smith

SKU: DSE-65-36

Brand: AO Smith

CALL TO ORDER

1-888-757-4774

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

DVE-80-45 Compare Checkbox

Compare

DVE-80, 80 Gallon 45 KW Lime Tamer Commercial Electric Water Heater

SKU: DVE-80-45

AO Smith

SKU: DVE-80-45

Brand: AO Smith

CALL TO ORDER

1-888-757-4774

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

DVE-120-13 Compare Checkbox

Compare

DVE-120, 120 Gallon 13.5 KW Lime Tamer Commercial Electric Water Heater

SKU: DVE-120-13

AO Smith

SKU: DVE-120-13

Brand: AO Smith

CALL TO ORDER

1-888-757-4774

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

DVE-52-13 Compare Checkbox

Compare

DVE-52, 50 Gallon 13.5 KW Lime Tamer Commercial Electric Water Heater

SKU: DVE-52-13

AO Smith

SKU: DVE-52-13

Brand: AO Smith

CALL TO ORDER

1-888-757-4774

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

DVE-52-15 Compare Checkbox

Compare

DVE-52, 50 Gallon 15 KW Lime Tamer Commercial Electric Water Heater

SKU: DVE-52-15

AO Smith

SKU: DVE-52-15

Brand: AO Smith

CALL TO ORDER

1-888-757-4774

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

DVE-52-45 Compare Checkbox

Compare

DVE-52, 50 Gallon 45 KW Lime Tamer Commercial Electric Water Heater

SKU: DVE-52-45

AO Smith

SKU: DVE-52-45

Brand: AO Smith

CALL TO ORDER

1-888-757-4774

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

DSE-120-15 Compare Checkbox

Compare

DSE-120, 120 Gallon 15 KW Dura-Power Commercial Electric Water Heater

SKU: DSE-120-15

AO Smith

SKU: DSE-120-15

Brand: AO Smith

CALL TO ORDER

1-888-757-4774

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

DSE-30-24 Compare Checkbox

Compare

DSE-30, 30 Gallon 24 KW Dura-Power Commercial Electric Water Heater

SKU: DSE-30-24

AO Smith

SKU: DSE-30-24

Brand: AO Smith

CALL TO ORDER

1-888-757-4774

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

Backorder

Get it by Thu, Dec 17 - Fri, Jan 22

1 ...4 5 6 7

Resources

FAQs, Manuals & Videos

Articles

More About Commercial Water Heaters

This category contains a selection of water heaters for commercial applications, including AO Smith, Lochinvar and Rheem.

Filters

SORT

Category –

Fuel Type –

BTU Input –

Capacity (Gallons) –

Efficiency –

Price Range –

Commercial Water Heaters

Video

Category
–

Fuel Type
–

BTU Input
–

Capacity (Gallons)
–

Efficiency
–

Price Range
–