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

Green Mountain X Heat-Flo X

Gallon

Fuel Type

Heater Type

Brands

Heat-flo HF Storage Tanks
Retail : $2,497.02 $1,697.97

You Save (32%)
Heat-Flo HF-40-ST 40 Gallon Stainless Steel Hot Water Booster / Storage Tanks
1711.561163.86
40 Gallons
HF-40-ST

Heat-Flo HF-60-ST 60 Gallons Stainless Steel Hot Water Booster / Storage Tank
2497.021697.97
60 Gallons
HF-60-ST
In Stock

Heat-Flo HF-80-ST 80 Gallon Stainless Steel Hot Water Booster / Storage Tanks
2836.661928.93
80 Gallons
HF-80-ST
In Stock

Heat-Flo HF-115-ST 115 Gallon Stainless Steel Hot Water Booster / Storage Tanks
4085.902778.41
115 Gallons
HF-115-ST
In Stock
Qty:
Heat-Flo HF Hydronic Buffer Tank
Retail : $1,184.94 $805.76

You Save (32%)
Heat-Flo HF-22-BT-4 22 Gallon Hydronic Buffer Tank
1184.94805.76
22 Gallons
HF-22-BT-4
In Stock

Heat-Flo HF-115-BT-2 Buffer Tank 115 Gallons with 2” Connection
4617.023139.57
115 Gallons
Qty:
Heat-Flo HF Storage Tanks with 2" FNPT Half Coupling
Retail : $3,130.00 $2,128.40

You Save (32%)
Heat-Flo HF80ST-C2 80 Gallon Stainless Steel Hot Water Booster / Storage Tanks with 2" FNPT Half Coupling
3130.002128.40
80 Gallons
HF80ST-C2
In Stock

Heat-Flo HF-115ST-C2 115 Gallon Stainless Steel Hot Water Booster / Storage Tanks with 2" FNPT Half Coupling
4780.003250.40
115 Gallons
HF-115ST-C2
In Stock
Qty:
Green Mountain H20 GL Series

Indirect Water Heater

346 Gallons
Retail : $2,629.00 $1,619.46

You Save (38%)
Green Mountain H2OIG40GM GMGL40I H20 GL Series Glass Lined Indirect Water Heater
1647.001014.55
42 Gallons
256 Gallons
H2OIG40GM
In Stock

Green Mountain H2OIG50GM GMGL50I H20 GL Series Glass Lined Indirect Water Heater
1854.001142.06
53 Gallons
310 Gallons
H2OIG50GM
In Stock

Green Mountain H2OIG80GM GMGL80I H20 GL Series Glass Lined Indirect Water Heater
2629.001619.46
79 Gallons
346 Gallons
H2OIG80GM
In Stock

Green Mountain H2OIG105GM GMGL105I H20 GL Series Glass Lined Indirect Water Heater
4093.002521.29
106 Gallons
440 Gallons
H2OIG105GM
In Stock
Qty:
Heat-flo Indirect Water Heater

298 Gallons
Retail : $2,716.94 $1,847.52

You Save (32%)
Heat-Flo HF-30 Residential Indirect Water Heater, 30 Gallons, Stainless Steel
1796.701221.76
30 Gallons
233 Gallons
HF-30
In Stock

Heat-Flo HF-40 Residential Indirect Water Heater, 40 Gallons, Stainless Steel
1921.021306.29
40 Gallons
254 Gallons
HF-40
In Stock

Heat-Flo HF-50 Residential Indirect Water Heater, 50 Gallons, Stainless Steel
2318.981576.91
50 Gallons
254 Gallons
HF-50
In Stock

Heat-Flo HF-60 Residential Indirect Water Heater, 60 Gallons, Stainless Steel
2716.941847.52
60 Gallons
298 Gallons
HF-60
In Stock

Heat-Flo HF-80 Commercial Indirect Water Heater, 80 Gallons, Stainless Steel
3073.042089.67
80 Gallons
306 Gallons
HF-80
Qty:
Heat-flo Indirect Water Heater –High Output

532 Gallons
Retail : $4,664.50 $3,171.86

You Save (32%)
Heat-Flo HF-80-HO Commercial Indirect Water Heater, 80 Gallons, Stainless Steel, High Output
3377.562296.74
80 Gallons
479 Gallons
HF-80-HO
In Stock

Heat-Flo HF-115-HO Commercial Indirect Water Heater, 115 Gallons, Stainless Steel, High Output
4664.503171.86
115 Gallons
532 Gallons
HF-115-HO
In Stock
Qty:
Heat-Flo
Out of Stock
Retail : $4,617.02 $3,139.57

You Save (32%)

Qty:
Heat-Flo HF-D - 5 Years - Dual Coil

Electric

Indirect Water Heater

5 Year Warranty
Retail : $5,363.60 $3,647.25

You Save (32%)
Heat-Flo HF-60-D Residential Indirect w/ Dual Coil Water Heater, 60 Gallons, Stainless Steel
3675.982499.67
60 Gallons
HF-60-D

Heat-Flo HF-115-D Commercial Indirect w/ Dual Coil Water Heater, 115 Gallons, Stainless Steel
5363.603647.25
115 Gallons
HF-115-D
Qty:
Heat - Flo - ST - C

5 Year Warranty
Retail : $4,371.66 $2,972.73

You Save (32%)
Heat-Flo HF-115-ST-C Stainless Steel Commercial 115 Gallon Storage Tank
4371.662972.73
115 Gallons
HF-115-ST-C
Qty:
Heat-flo Indirect Water Heater –LOW

272 Gallons
Retail : $2,796.24 $1,901.44

You Save (32%)
Heat-Flo 40 LOW Residential Indirect Water Heater, 42 Gallons, Stainless Steel
2046.701391.76
42 Gallons
251 Gallons
40 LOW
In Stock

Heat-Flo HF-60 LOW Residential Indirect Water Heater, 60 Gallons, Stainless Steel
2796.241901.44
60 Gallons
272 Gallons
HF-60 LOW
In Stock
Qty:
Heat - Flo - Standard
Out of Stock
Retail : $1,808.80 $1,229.98

You Save (32%)

Qty:

Now Shopping by

Manufacturer Green Mountain Remove This Item
Manufacturer Heat-Flo Remove This Item

Clear All

Shopping Options

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