JavaScript seems to be disabled in your browser. For the best experience on our site, be sure to turn on Javascript in your browser.

We are closed on Friday, July 4th, 2025 for Independence Day weekend and reopening Monday July 7th, 2025. Enjoy and be safe.

Toggle Nav

Search

We ship to most places in continental USA

Chat with us

Need help

Our Locations

Home
HVAC
Water Heaters

Water Heaters

Gallon

Fuel Type

Heater Type

Brands

AO Smith Master-Fit 3 Years - ASME Construction

Natural Gas

Commercial Water Heater
Retail : $14,787.00 $13,308.30

You Save (10%)
AO Smith BTR-200A Master-Fit 100 Gallon, 199 Input MBtu Commercial Natural Gas Water Heater - 3 Year Warranty
13317.0011985.30
199 MBtu
BTR-200A

AO Smith BTR-250A Master-Fit 100 Gallon, 250 Input MBtu Commercial Natural Gas Water Heater - 3 Year Warranty
14291.0012861.90
250 MBtu
BTR-250A
In Stock

AO Smith BTR-275A Master-Fit 100 Gallon, 275Input MBtu Commercial Natural Gas Water Heater - 3 Year Warranty
14787.0013308.30
275 MBtu
BTR-275A

AO Smith BTR-365A Master-Fit 85 Gallon, 365 Input MBtu Commercial Natural Gas Water Heater - 3 Year Warranty
16450.0014805.00
365 MBtu
BTR-365A

AO Smith BTR-400A Master-Fit 100 Gallon, 390 Input MBtu Commercial Natural Gas Water Heater - 3 Year Warranty
19800.0017820.00
390 MBtu
BTR-400A

AO Smith 100299378 BTR-500A Master-Fit 85 Gallon, 500 Input MBtu Commercial Natural Gas Water Heater - 3 Year Warranty
21435.0019291.50
500 MBtu
100299378
In Stock
Qty:
AO Smith COF

Oil-Fired

Commercial Water Heater
$0.00
AO Smith COF-455 THRU 75 Gallon Commercial Oil- Fired Water Heater - 3 Year Warranty
0.000.00
75 Gallons
COF-455
Qty:
AO Smith BTP - ASME Construction

Natural Gas

Commercial Water Heater

778 Gallons
$0.00
AO Smith BTP-540A 85 Gallon Commercial Natural Gas Water Heater - 3 Year Warranty
0.000.00
540 MBtu
583 Gallons
BTP-540A

AO Smith BTP-650A 85 Gallon Commercial Natural Gas Water Heater - 3 Year Warranty
0.000.00
650 MBtu
690 Gallons
BTP-650A

AO Smith BTP-740A 85 Gallon Commercial Natural Gas Water Heater - 3 Year Warranty
0.000.00
740 MBtu
778 Gallons
BTP-740A
Qty:
AO Smith Gold Series - Water Heaters

Electric

Commercial Water Heater

3 Year Warranty
Retail : $7,885.00 $7,385.09

You Save (6%)
AO Smith DVE-80-12KW Gold Series 80 Gallon Commercial Electric Water Heater - 3 Year Warranty
7885.007385.09
80 Gallons
DVE-80-12KW-208V
Qty:
AO Smith Dura-Power - DVE

Electric
Retail : $9,455.00 $8,855.55

You Save (6%)
AO Smith DVE-52-12KW-208V Dura-Power 52 Gallon Commercial Electric Water Heater - 3 Year Warranty
6368.005964.27
12KW
DVE-52-12KW-208V

AO Smith DVE-80-15KW-208V Dura-Power 80 Gallon Commercial Electric Water Heater - 3 Year Warranty
7940.007436.60
15KW
DVE-80-15KW-208V

AO Smith DVE-80-36KW-208V Dura-Power 80 Gallon Commercial Electric Water Heater - 3 Year Warranty
9483.008881.78
36KW
DVE-80-36KW-208V

AO Smith DVE-52-54KW-208V Dura-Power 52 Gallon Commercial Electric Water Heater - 3 Year Warranty
9455.008855.55
54KW
DVE-52-54KW-208V

AO Smith DVE-52-6KW-208V Dura-Power 52 Gallon Commercial Electric Water Heater - 3 Year Warranty
6008.003604.80
6KW
DVE-52-6KW-208V

AO Smith DVE-52-9KW-208V Dura-Power 52 Gallon Commercial Electric Water Heater - 3 Year Warranty
6008.003604.80
9KW
DVE-52-9KW-208V
Qty:
Lochinvar ERN EnergyRite

Natural Gas
Retail : $4,752.00 $3,737.92

You Save (21%)
Lochinvar ERN152 EnergyRite 150 Input MBtu Residential/Commercial Natural Gas Pool and Spa Heater - 3 Year Warranty
4118.003239.22
150 MBtu
ERN152
In Stock

Lochinvar ERN252 EnergyRite 250 Input MBtu Residential/Commercial Natural Gas Pool and Spa Heater - 3 Year Warranty
4752.003737.92
250 MBtu
E-RITE-5

Lochinvar ERN302 EnergyRite 300 Input MBtu Residential/Commercial Natural Gas Pool and Spa Heater
4977.003695.00
300 MBtu
E-RITE-5
In Stock

Lochinvar ERN402 EnergyRite 399 Input MBtu Residential/Commercial Natural Gas Pool and Spa Heater - 3 Year Warranty
5587.004394.73
399 MBtu
E-RITE-5
In Stock
Qty:
Lochinvar AWN Armor

Natural Gas
Retail : $10,733.00 $8,028.28

You Save (25%)
Lochinvar AWN151PM Armor 150 Input MBtu - 96% AFUE - Commercial Condensing Natural Gas Water Heater - Direct Vent - 5 Year Warranty
10733.008028.28
150 MBtu
AWN151PM

Lochinvar AWN200PM Armor 199 Input MBtu - 96% AFUE - Commercial Condensing Natural Gas Water Heater - Direct Vent - 5 Year Warranty
11268.007976.62
199 MBtu
AWN200PM

Lochinvar AWN286PM Armor 285 Input MBtu - 96% AFUE - Commercial Condensing Natural Gas Water Heater - Direct Vent - 5 Year Warranty
16329.0011559.30
285 MBtu
AWN286PM
In Stock
Qty:
Rheem Universal Series - ASME Construction - Water Heaters

Liquid Propane

Commercial Water Heater

80% Efficiency

655 Gallons

3 Year Warranty
Retail : $16,619.00 $12,464.25

You Save (25%)
Rheem G100-270 Universal 100 Gallon, 270 Input MBtu - 80% AFUE - Commercial Liquid Propane Water Heater - 3 Year Warranty
16619.0012464.25
100 Gallons
G100-270
Qty:
Eemax Home Advantage

Natural Gas
Retail : $14,998.00 $11,248.50

You Save (25%)
Rheem GN37-200 Universal 35 Gallon - 80% AFUE - Commercial Natural Gas Water Heater - 3 Year Warranty
14998.0011248.50
35 Gallons
GN37-200
Qty:
Rheem Universal 3 Years - Standard Vent - Natural Gas

Natural Gas

Commercial Water Heater

Standard Vent

80% Efficiency

485 Gallons

3 Year Warranty
Retail : $11,161.00 $8,370.75

You Save (25%)
Rheem G37-200 Universal 35 Gallon, 199 Input MBtu - 80% AFUE - Commercial Natural Gas Water Heater - Standard Vent - 3 Year Warranty
13733.0010299.75
35 Gallons
485 Gallons
G37-200

Rheem G65-360 Universal 65 Gallon, 360 Input MBtu - 80% AFUE - Commercial Natural Gas Water Heater - Standard Vent - 3 Year Warranty
19034.0014275.50
65 Gallons
873 Gallons
G65-360

Rheem G72-300 Universal 72 Gallon, 300 Input MBtu - 80% AFUE - Commercial Natural Gas Water Heater - Standard Vent - 3 Year Warranty
15589.0011691.75
72 Gallons
727 Gallons
G72-300

Rheem G75-125 Universal 75 Gallon, 125 Input MBtu - 80% AFUE - Commercial Natural Gas Water Heater - Standard Vent - 3 Year Warranty
9616.007212.00
75 Gallons
303 Gallons
G75-125
In Stock

Rheem G82-156 Universal 82 Gallon, 156 Input MBtu - 80% AFUE - Commercial Natural Gas Water Heater - Standard Vent - 3 Year Warranty
12035.009026.25
82 Gallons
378 Gallons
G82-156
In Stock

Rheem G91-200 Universal 91 Gallon, 199 Inptu MBtu - 80% AFUE - Commercial Natural Gas Water Heater - Standard Vent - 3 Year Warranty
11161.008370.75
91 Gallons
485 Gallons
G91-200

Rheem G100-400 Universal 100 Gallon, 399 Input MBtu - 80% AFUE - Commercial Natural Gas Water Heater - Standard Vent - 3 Year Warranty
17733.0013299.75
100 Gallons
969 Gallons
G100-400
Qty:
Rheem Universal Series - Standard Vent - Water Heaters

Natural Gas

Commercial Water Heater

Standard Vent

80% Efficiency

606 Gallons

3 Year Warranty

Energy Star
Retail : $15,165.00 $11,373.75

You Save (25%)
Rheem G72-250 Universal 72 Gallon,250 Input MBtu - 80% AFUE - Commercial Natural Gas Water Heater - Standard Vent - 3 Year Warranty
15165.0011373.75
72 Gallons
606 Gallons
G72-250

Rheem G100-200 Universal 100 Gallon, 199 Input MBtu - 80% AFUE - Commercial Natural Gas Water Heater - Standard Vent - 3 Year Warranty
10955.008216.25
100 Gallons
485 Gallons
G100-200
In Stock
Qty:
Eemax Series Two "T2"

Electric
Retail : $963.90 $769.91

You Save (20%)
Eemax EX1608T2 16.6KW 208V PARA S2 Electric Tankless Water Heater
963.90769.91
16.6 KW
EX1608T2

Eemax EX190T2 19KW 240V Therm Electric Tankless Water Heater
1018.36760.20
19 KW
EX190T2
Qty:
AO Smith THRU 700A - ASME Construction

Oil-Fired

Commercial Water Heater
$0.00
AO Smith COF-315A Commercial Oil Water Heater, 84 Gallons, 315000 BTU, Atmospheric, 3 Yr Tank Warranty
13330.0012170.29
315 MBtu

AO Smith COF-385A Commercial Oil Water Heater, 75 Gallons, 385000 BTU, Atmospheric, 3 Yr Tank Warranty
15287.0013957.03
385 MBtu

AO Smith COF-455A Commercial Oil Water Heater, 75 Gallons, 455000 BTU, Atmospheric, 3 Yr Tank Warranty
17487.0015965.63
455 MBtu

AO Smith COF-700A Commercial Oil Water Heater, 69 Gallons, 700000 BTU, Atmospheric, 3 Yr Tank Warranty
20991.0019164.78
700 MBtu
Qty:
AO Smith THRU 700A - Short - COF

Oil-Fired

Commercial Water Heater

3 Year Warranty
$0.00
AO Smith COF-385S 86 Gallon, 385 Input MBtu Commercial Oil- Fired Water Heater - 3 Year Warranty
0.000.00
75 Gallons
COF-385

AO Smith COF-245 86 Gallon, 245 Input MBtu Commercial Oil- Fired Water Heater - 3 Year Warranty
0.000.00
86 Gallons
COF-245
Qty:
AO Smith Conservationist Series - Oil Fired Water Heaters

Oil-Fired

Commercial Water Heater

86 Gallons
$0.00
AO Smith COF-199 THRU 86 Gallon, 199 Input MBtu Commercial Oil- Fired Water Heater - 3 Year Warranty
0.000.00
199 MBtu
86 Gallons
COF-199

AO Smith COF-315 THRU 84 Gallon, 315 Input MBtu Commercial Oil- Fired Water Heater - 3 Year Warranty
0.000.00
315 MBtu
COF-315
Qty:
AO Smith THRU 700A - COF

Oil-Fired

Commercial Water Heater
$0.00
AO Smith COF-199 THRU 86 Gallon, 199 Input MBtu Commercial Oil- Fired Water Heater - 3 Year Warranty
0.000.00
199 MBtu
86 Gallons
COF-199

AO Smith COF-315 THRU 84 Gallon, 315 Input MBtu Commercial Oil- Fired Water Heater - 3 Year Warranty
0.000.00
315 MBtu
COF-315
Qty:
Eemax Home Advantage Series Water Heater

Electric
Retail : $780.44 $526.80

You Save (32%)
Eemax HA011240 240V 11 kW Electric Tankless Water Heater
409.86276.66
11 KW
HA011240

Eemax HA013240 240V 13 kW Electric Tankless Water Heater
568.98384.06
13 KW
HA013240

Eemax HA018240 240V 18 kW Electric Tankless Water Heater
639.00431.32
18 KW
HA018240

Eemax HA024240 240V 24 kW Electric Tankless Water Heater
780.44526.80
24 KW
HA024240

Eemax HA027240 240V 27 kW Electric Tankless Water Heater
1009.26681.25
27 KW
HA027240

Eemax HA036240 240V 36 kW Electric Tankless Water Heater
1283.86866.61
36 KW
HA036240

Eemax HA008240 240V 8.0 kW Electric Tankless Water Heater
344.72232.69
8 KW
HA008240
In Stock
Qty:
Eemax

Electric
Out of Stock
Retail : $516.50 $348.64

You Save (32%)

Qty:
Eemax EMT

Electric

5 Year Warranty
Retail : $284.56 $195.47

You Save (31%)
Eemax EMT1 1.3-Gallon Mini Tank Electric Water Heater
284.56195.47
1.5 Gallons
EMT1

Eemax EMT2.5 2.5-Gallon Electric Mini-Tank
264.58181.75
2.5 Gallons
EMT2.5
In Stock

Eemax EMT4 4 Gallon Capacity Electric Mini-Tank
306.14210.29
4 Gallons
In Stock

Eemax EMT6 6 Gallon Capacity Electric Mini-Tank
377.70259.45
6 Gallons
Qty:
AO Smith Dura-Power Series - Single Element Water Heaters

Electric

3 Year Warranty
Retail : $1,121.00 $1,049.93

You Save (6%)
AO Smith DEL-10-3KW-208V Dura-Power 10 Gallon Commercial Electric Water Heater - 3 Year Warranty
1121.001049.93
10 Gallons
DEL-10-3KW-208V

AO Smith DEL-15-1.5KW-208V Dura-Power 15 Gallon Commercial Electric Water Heater - 3 Year Warranty
1188.001112.68
15 Gallons
DEL-15-1.5KW-208V

AO Smith DEL-20-1.5KW-208V Dura-Power 20 Gallon Commercial Electric Water Heater - 3 Year Warranty
1267.001186.67
20 Gallons
DEL-20-1.5KW-208V

AO Smith DEL-30-3KW-208V Dura-Power 36 Gallon Commercial Electric Water Heater - 3 Year Warranty
2570.002407.06
36 Gallons
DEL-30-3KW-208V
Qty:
AO Smith Dura-Power - Lowboy - DEL

Electric
Retail : $2,570.00 $2,407.06

You Save (6%)
AO Smith DEL-50-12KW-208V Dura-Power 50 Gallon Commercial Electric Water Heater - 3 Year Warranty
3275.003067.36
12KW
DEL-50-12KW-208V

AO Smith DEL-30-9KW-208V Dura-Power 30 Gallon Commercial Electric Water Heater - 3 Year Warranty
2570.002407.06
9KW
DEL-30-9KW-208V
Qty:
AO Smith Dura-Power - Tall - DEN

Electric
Retail : $4,076.00 $3,817.58

You Save (6%)
AO Smith 100132571 40-Gallon 208 Voltage Commercial Electric Water Heater, 3 Yr Tank Warranty
2497.002338.69
40 Gallons

AO Smith DEN-80D-9KW-240V Commercial Electric Water Heater, 80 Gallons, 9KW, 240V, 3 Yr Tank Warranty
3499.003277.16
80 Gallons
Qty:
Rheem RTEX Classic Series Water Heaters

Electric
Retail : $997.40 $698.18

You Save (30%)
Rheem RTEX-18 Classic 240 Voltage 18.0 KW Residential Electric 2 Heating Chamber Tankless Water Heater - 5 Year Warranty
816.64571.65
18 KW
RTEX-18

Rheem RTEX-24 Classic 240 Voltage 24.0 KW Residential Electric 3 Heating Chamber Tankless Water Heater - 5 Year Warranty
997.40698.18
24 KW
RTEX-24

Rheem RTEX-27 Classic 240 Voltage 27.0 KW Residential Electric 3 Heating Chamber Tankless Water Heater - 5 Year Warranty
1289.84902.89
27 KW
RTEX-27

Rheem RTEX-36 Classic 240 Voltage 36.0 KW Residential Electric 4 Heating Chamber Tankless Water Heater - 5 Year Warranty
1640.781148.55
36 KW
RTEX-36
In Stock
Qty:
Rheem Classic RTEX

Electric
Retail : $727.16 $509.01

You Save (30%)
Rheem RTEX-11 Classic 240 Voltage 11.8 KW Residential Electric 1 Heating Chamber Tankless Water Heater - 5 Year Warranty
523.80366.66
11 KW
RTEX-11

Rheem RTEX-13 Classic 240 Voltage 13.0 KW Residential Electric 1 Heating Chamber Tankless Water Heater - 5 Year Warranty
727.16509.01
13 KW
RTEX-13

Rheem RTEX-08 Classic 240 Voltage 8 KW Residential Electric 1 Heating Chamber Tankless Water Heater - 5 Year Warranty
440.56308.39
8 KW
RTEX-08
Qty:
Rheem RTEX Classic Series Point-Of-Use Water Heaters

Electric

Residential Water Heater
Retail : $285.48 $199.84

You Save (30%)
Rheem RTEX-04 Classic 120 Voltage 3.5 KW Residential Electric 1 Heating Chamber Tankless Water Heater - 5 Year Warranty
285.48199.84
3.5 KW
RTEX-04

Rheem RTEX-06 Classic 240 Voltage 5.5 KW Residential Electric 1 Heating Chamber Tankless Water Heater - 5 Year Warranty
294.32264.89
5.5 KW
RTEX-06
Qty:
AO Smith TJV - ASME

5 Year Warranty
Retail : $20,312.00 $11,744.40

You Save (42%)
AO Smith TJV-120A 120 Gallon Commercial Storage Tank - 5 Year Warranty
3461.003114.90
120 Gallons
TJV-120A
In Stock

AO Smith TJV-200A 200 Gallon Commercial Storage Tank - 5 Year Warranty
5414.004872.60
200 Gallons
TJV-200A
In Stock

AO Smith TJV-250A 250 Gallon Commercial Storage Tank - 5 Year Warranty
12944.007484.22
250 Gallons
TJV-250A
In Stock

AO Smith TJV-400A 400 Gallon Commercial Storage Tank - 5 Year Warranty
20312.0011744.40
400 Gallons
TJV-400A
Qty:
AO Smith ProLine - Lowboy - Top Connect

Electric

Residential Water Heater

60 Gallons
Retail : $1,630.00 $1,028.86

You Save (37%)
AO Smith 100297042 ENLB-30 Proline 30 Gallon Lowboy Residential Electric Water Heater - 6 Year Warranty
1262.00796.57
30 Gallons
43 Gallons
100297042
In Stock

AO Smith 100295340 ENLB-40 Proline 40 Gallon Lowboy Residential Electric Water Heater - 6 Year Warranty
1352.00853.38
40 Gallons
51 Gallons
100295340
In Stock

AO Smith 100227579 ENLB-50 Proline 50 Gallon Lowboy Residential Electric Water Heater - 6 Year Warranty
1630.001028.86
50 Gallons
60 Gallons
100227579
Qty:
AO Smith Gold Series - Medium Duty - Electric

Electric
Retail : $5,979.00 $5,599.93

You Save (6%)
AO Smith 100121516 DRE-52 Gold 50 Gallon Commercial Electric Water Heater - 3 Year Warranty
4816.004510.67
18KW
100121516
In Stock

AO Smith DRE-52-24KW-208V Gold 50 Gallon Commercial Electric Water Heater - 3 Year Warranty
5979.005599.93
24KW
DRE-52-24KW-208V

AO Smith DRE-52-30KW-208V Gold 50 Gallon Commercial Electric Water Heater - 3 Year Warranty
6265.005867.80
30KW
DRE-52-30KW-208V

AO Smith DRE-52-36KW-208V Gold 50 Gallon Commercial Electric Water Heater - 3 Year Warranty
6287.005888.40
36 KW
DRE-52-36KW-208V

AO Smith DRE-120-40.5KW-208V Gold 119 Gallon Commercial Electric Water Heater - 3 Year Warranty
9909.009280.77
40.5KW
DRE-120-40.5KW-208V

AO Smith DRE-120-45KW-208V Gold 119 Gallon Commercial Electric Water Heater - 3 Year Warranty
9915.009286.39
45KW
DRE-120-45KW-208V
Qty:
AO Smith ProLine - Short - PNS

Electric

Residential Water Heater

50 - 74 Gallons

10 Year Warranty
Retail : $1,410.00 $889.99

You Save (37%)
AO Smith PNS-40 Proline 40 Gallon Short Residential Electric Water Heater - 6 Year Warranty
1410.00889.99
40 Gallons
50 - 74 Gallons
PNS-40

AO Smith PNS-50 Proline 50 Gallon Short Residential Electric Water Heater - 6 Year Warranty
1386.00874.84
50 Gallons
50 - 74 Gallons
PNS-50
Qty:
AO Smith ProLine - Tall - PNT

Electric

Residential Water Heater

72 Gallons
Retail : $1,882.00 $1,187.92

You Save (37%)
AO Smith PNT-30 Proline 30 Gallon Tall Residential Electric Water Heater - 10 Year Warranty
1704.001075.56
30 Gallons
48 Gallons
PNT-30

AO Smith PNT-40 Proline 40 Gallon Tall Residential Electric Water Heater - 10 Year Warranty
1410.00889.99
40 Gallons
53 Gallons
PNT-40

AO Smith PNT-50 Proline 50 Gallon Tall Residential Electric Water Heater - 10 Year Warranty
1454.00917.76
50 Gallons
62 Gallons
PNT-50

AO Smith PNT-55 Proine 55 Gallon Tall Residential Electric Water Heater - 10 Year Warranty
1882.001187.92
55 Gallons
72 Gallons
PNT-55
Qty:
AO Smith ProLine

Natural Gas

Residential Water Heater

Atmospheric Vent

65 Gallons

6 Year Warranty
Retail : $1,432.00 $903.88

You Save (37%)
AO Smith GCRH-40 ProLine 40 Gallon Tall Residential Natural Gas Water Heater - Atmospheric Vent - 6 Year Warranty
1432.00903.88
40 Gallons
GCRH-40
Qty:

Shopping Options

By using this site you agree to our © 2025 AF Supply Corp. All Rights Reserved.