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

Tankless X

Gallon

Fuel Type

Heater Type

Brands

Lochinvar EnergyRite Series - Water Heaters

Natural Gas

Commercial-Grade Heat Exchanger

Indoor And Outdoor Venting

3 Year Warranty
Retail : $4,977.00 $3,695.00

You Save (26%)
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 CWN Copper-Fin

Natural Gas

Commercial Water Heaters
Retail : $18,698.00 $12,514.57

You Save (33%)
Lochinvar CWN0647PM Copper-Fin 645 Input MBtu Commercial Natural Gas Water Heater - outdoor Vent - 5 Year Warranty
15092.0010101.08
645 MBtu
CWN-0647PM
In Stock

Lochinvar CWN0987PM Copper-Fin 985 Input MBtu Commercial Natural Gas Water Heater - 5 Year Warranty
18698.0012514.57
985 MBtu
CWN-0987PM
In Stock

Lochinvar CWN1257PM Copper-Fin Commercial 1255 Input MBtu Natural Gas Pump Mount Water Heater -5 Year Warranty
21187.0014180.46
1255 MBtu
CWN1257PM
In Stock

Lochinvar CWN1437PM Copper-Fin 1435 Input MBtu Commercial Natural Gas Water Heater - 5 Year Warranty
24675.0016514.98
1435 MBtu
CWN1437PM

Lochinvar CWN1797PM Copper-Fin 1795 Input MBtu Commercial Natural Gas Water Heater - 5 Year Warranty
26753.0017905.78
1795 MBtu
CWN1797PM
In Stock

Lochinvar CWN2067PM Copper-Fin 2065 Input MBtu Commercial Natural Gas Water Heater - 5 Year Warranty
32684.0021875.40
2065 MBtu
CWN2067PM
In Stock
Qty:
Lochinvar Copper-Fin Series - Pump Mounted Water Heaters

Natural Gas

Copper-Fin Heat Exchanger

Commercial Water Heaters

81% Efficiency

5 Year Warranty
Retail : $15,092.00 $10,101.08

You Save (33%)
Lochinvar CWN0647PM Copper-Fin 645 Input MBtu Commercial Natural Gas Water Heater - outdoor Vent - 5 Year Warranty
15092.0010101.08
645 MBtu
CWN-0647PM
In Stock

Lochinvar CWN0987PM Copper-Fin 985 Input MBtu Commercial Natural Gas Water Heater - 5 Year Warranty
18698.0012514.57
985 MBtu
CWN-0987PM
In Stock

Lochinvar CWN1257PM Copper-Fin Commercial 1255 Input MBtu Natural Gas Pump Mount Water Heater -5 Year Warranty
21187.0014180.46
1255 MBtu
CWN1257PM
In Stock

Lochinvar CWN1437PM Copper-Fin 1435 Input MBtu Commercial Natural Gas Water Heater - 5 Year Warranty
24675.0016514.98
1435 MBtu
CWN1437PM

Lochinvar CWN1797PM Copper-Fin 1795 Input MBtu Commercial Natural Gas Water Heater - 5 Year Warranty
26753.0017905.78
1795 MBtu
CWN1797PM
In Stock

Lochinvar CWN2067PM Copper-Fin 2065 Input MBtu Commercial Natural Gas Water Heater - 5 Year Warranty
32684.0021875.40
2065 MBtu
CWN2067PM
In Stock
Qty:
Takagi T-H3J - Outdoor Water Heaters (NG)

Natural Gas

Copper & Stainless Heat Exchanger

Condensing Water Heater

Direct Vent

6.6 GPM

5 Years

Energy Star
Retail : $1,738.00 $1,129.70

You Save (35%)
Takagi TH3J OS-NG T-H3J-OS-NG Residential Condensing 160000 BTU Outdoor Water Heater - Natural Gas
1738.001129.70
160 MBtu
6.6 GPM
T-H3J-OS-NG
In Stock

Takagi TH3-OS-NG T-H3-OS-NG Residential Condensing 199000 BTU Outdoor Water Heater - Natural Gas
2158.001402.70
199 MBtu
10 GPM
T-H3-OS-NG
Qty:
AO Smith ATI H - Tankless Water Heaters (LP)

Liquid Propane

Direct Vent
Retail : $2,136.00 $1,708.80

You Save (20%)
AO Smith ATI-240H-P Tankless Propane Water Heater, 160,000 BTU, Power Direct Vent, 15 Yr Heat Exchanger/5 Parts Warranty
1912.001529.60
160 MBtu
ATI-240H-P

AO Smith ATI-340H-P ATI 180 Input MBtu Liquid Propane Condensing water Heater - Tankless - Power Direct Vent
2136.001708.80
180 MBtu
ATI-340H-P
Qty:
AO Smith Burkay Series - Water Heaters (LP)

Liquid Propane, Hydronic (Water)

Commercial Water Heater

5 Year Warranty
Retail : $7,668.00 $6,901.20

You Save (10%)
AO Smith HW-300-LP Burkay 300 Input MBtu Commercial Liquid Propane Water Heater - 5 Year Warranty
7668.006901.20
300 MBtu
HW-300-LP
Qty:
HTP
Out of Stock
Retail : $1,780.00 $1,157.00

You Save (35%)

Qty:
HTP
Out of Stock
Retail : $1,780.00 $1,157.00

You Save (35%)

Qty:
Rheem Prestige 12 Years - Indoor - Direct Vent - Natural Gas

Natural Gas

Residential Water Heater
Retail : $1,996.36 $1,137.93

You Save (43%)
Rheem RTGH-84DVLN-2 Prestige 157 Input MBtu Low Nox Indoor Residential Natural Gas Tankless Water Heater - Direct Vent - 12 Year Warranty
1894.601188.00
157 MBtu
0.26 GPM
RTGH-84DVLN-2
In Stock

Rheem RTGH-90DVLN-2 Prestige 120 Input MBtu Low Nox Indoor Residential Natural Gas Tankless Water Heater - Direct Vent - 12 Year Warranty
1996.361137.93
180 MBtu
RTGH-90DVLN-2
Qty:
Eemax EX

Electric
Retail : $14,534.02 $9,810.46

You Save (33%)
Eemax AP072480 EFD 72KW 480V Tankless Water Heater for Emergency Shower/Eye Wash Combo
14534.029810.46
480 Voltage
AP072480 EFD
Qty:
Eemax Home Advantage Series Water Heater

Electric
Retail : $1,283.86 $866.61

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 Solo

Electric
Retail : $331.20 $264.55

You Save (20%)
Eemax SP48 4.8KW/240V Single pt. Electric Tankless Water Heater
331.20264.55
240 Voltage
SPEX48
Qty:
Eemax EXT 3 Phase Tankless Water Heater

Electric
Retail : $429.76 $343.28

You Save (20%)
Eemax EX100T 227 Volt Thermostatic Electric Tankless Water Heater
433.90346.58
10KW
SPEX100T

Eemax EX180T3 18KW 208V 3Ph Electric Tankless Water Heater
2237.081786.86
18 KW
EX180-T

Eemax EX3012T 3 KW/120V Thermostatic Electric Tankless Water Heater
429.76343.28
3 KW
SPEX3012T

Eemax EX80T 277 Volt Thermostatic Electric Tankless Water Heater
433.90346.58
8 KW
SPEX80T
Qty:
Eemax

Electric
Out of Stock
Retail : $405.44 $273.67

You Save (33%)

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:
Eemax

Electric
Out of Stock
Retail : $516.50 $348.64

You Save (32%)

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:
Lochinvar Copper-Fin-II Series - Pump Mounted Water Heaters

Natural Gas

Copper Finned Tube Heat Exchanger

Commercial Water Heaters

85% Efficiency

5 Year Warranty
Retail : $18,474.00 $12,364.65

You Save (33%)
Lochinvar CFN0402PM Copper-Fin II 399 Input MBtu - 85% AFUE - Commercial Natural Gas Water Heater - Direct Vent - 5 Year warranty
18474.0012364.65
399 MBtu
CFN0402PM
Qty:
Eemax Series Three Tankless Water Heater

Electric
Retail : $1,604.82 $1,146.30

You Save (29%)
Eemax EX280T2T Series Three, Whole House Electric Tankless Water Heater
1448.661081.41
240 Voltage
EX280T2T
Qty:
Eemax Tankless Water Heater

Electric
Retail : $429.76 $343.28

You Save (20%)
Eemax EX95T Thermostatic Limit Electric Tankless Water Heater
405.44323.85
208 Voltage
SPEX95T
Qty:
Bosch Greentherm Series Water Heater (NG)

Natural Gas
Retail : $1,591.00 $786.43

You Save (51%)
Bosch 7736501516 C 950 ES NG Greentherm Tankless Water Heater, Natural Gas
1591.001272.80
175 MBtu
C-950-ES-NG
Qty:
Bosch Tronic 3000 C Series (Under Sink) Water Heaters

Electric
Retail : $529.00 $261.48

You Save (51%)
Bosch 7736500683 US12 Tronic 3000 Point-of-Use Water Heater, 12 kW
529.00261.48
12 KW
7-736-500-683

Bosch 7736500685 US3 Tronic 3000 Tankless Water Heaters Powerstream Pro RP3P
265.00130.99
3.6 KW
US3

Bosch 7736500686 US6 Tronic 3000 Point-of-Use Water Heater, 6 kW
263.00130.00
6 KW
7-736-500-686

Bosch 7736500684 US7 Tronic 3000 Tankless Water Heaters Powerstream Pro RP7P
271.00133.96
7.2 KW
US7

Bosch 7736500687 US9 Tronic Powerstream Pro Electric Tankless Water Heater
271.00133.96
9.5 KW
US9
Qty:
Lochinvar Copper-Fin II

Natural Gas
Out of Stock
Retail : $37,125.00 $24,847.76

You Save (33%)

Qty:

Now Shopping by

Water Heater Type for Top Filters Tankless Remove This Item

Clear All

Shopping Options

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