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Maximum Input Capacity (BTU)
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Maximum Input Capacity (BTU)
The Maximum Input Capacity describes how quickly the appliance will use fuel when delivering it's maximum capacity. The units may change depending on the fuel being used.
70000 - 99999 (1)
100000 - 129999 (3)
130000 - 159999 (1)
190000 - 219999 (1)
250000 - 279999 (1)
280000 - 309999 (1)
370000 - 399999 (1)
490000+ (1)
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100 (3)
119 (3)
50 (2)
60 (1)
75 (1)
First Hour Delivery (Gallons)
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First Hour Delivery (Gallons)
Sometimes called First Hour Rating, this is the number of gallons of hot water the heater can supply per hour when starting with a fully heated tank. The recovery of the water heater depends on your boiler's BTU and boiler output temperature.
100 - 149 (1)
150 - 199 (3)
200 - 249 (1)
300 - 349 (1)
350 - 399 (1)
400 - 449 (1)
500 - 549 (1)
650 - 699 (1)
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Continuous Recovery Rate (Gallons)
92 - 131 (3)
132 - 171 (1)
172 - 211 (1)
252 - 291 (1)
292 - 331 (1)
372 - 411 (1)
492 - 531 (1)
612+ (1)
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Product Height (Inches)
65 (1)
66 (1)
68 (1)
75 (6)
Product Width (Inches)
22 (2)
27 (4)
33 (3)
Product Depth (Inches)
22 (1)
27 (5)
33 (3)
Brand
A.O. Smith Commercial (7)
A.O. Smith (3)
Compare
A.O. Smith - 119 Gal. Storage - 659 Gal. First Hour Delivery - 95% Thermal Efficiency - Natural Gas Water Heater - Direct Vent - ASME Certified
Model: BTH-500A
640 GPH Continuous Recovery Rate at 90
24% Buy This
(1)
$10,350.00
Only 2 In-Stock
Free Shipping & Lift Gate
×
Free Shipping & Lift Gate
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
A.O. Smith - 100 Gal. Storage - 361 Gal. First Hour Delivery - 96% Thermal Efficiency - Natural Gas Water Heater - Direct Vent
Model: BTH-250
323 GPH Continuous Recovery Rate at 90
21% Buy This
(1)
Add to Cart for Price
In-Stock
Free Shipping & Lift Gate
×
Free Shipping & Lift Gate
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
A.O. Smith - 119 Gal. Storage - 432 Gal. First Hour Delivery - 96% Thermal Efficiency - Natural Gas Water Heater - Direct Vent
Model: BTH-300
388 GPH Continuous Recovery Rate at 90
3% Buy This
(1)
$8,499.00
Factory-Direct
Free Shipping & Lift Gate
×
Free Shipping & Lift Gate
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
A.O. Smith - 50 Gal. Storage - 127 Gal. First Hour Delivery - 90% Thermal Efficiency - 0.88 UEF - Natural Gas Water Heater - Direct Vent
Model: GPHE-50
(3)
$2,349.00
Only 4 In-Stock
Free Shipping & Lift Gate
×
Free Shipping & Lift Gate
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
A.O. Smith - 50 Gal. Storage - 164 Gal. First Hour Delivery - 0.88 UEF - Natural Gas Water Heater - Direct Vent
Model: GDHE-50
129 GPH Continuous Recovery Rate at 90
(2)
$2,949.00
In-Stock
Free Shipping & Lift Gate
×
Free Shipping & Lift Gate
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
A.O. Smith - 75 Gal. Storage - 189 Gal. First Hour Delivery - 96% Thermal Efficiency - 0.86 UEF - Natural Gas Water Heater - Direct Vent
Model: GDHE-75
129 GPH Continuous Recovery Rate at 90
(1)
Q&A
(1)
$3,599.00
In-Stock
Free Shipping & Lift Gate
×
Free Shipping & Lift Gate
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
A.O. Smith - 119 Gal. Storage - 544 Gal. First Hour Delivery - 95% Thermal Efficiency - Natural Gas Water Heater - Direct Vent
Model: BTH-400
512 GPH Continuous Recovery Rate at 90
(1)
$9,499.00
In-Stock
Free Shipping & Lift Gate
×
Free Shipping & Lift Gate
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
A.O. Smith - 60 Gal. Storage - 180 Gal. First Hour Delivery - 95% Thermal Efficiency - Natural Gas Water Heater - Direct Vent
Model: BTH-120
Write a Review
$4,499.00
Only 1 In-Stock
Free Shipping & Lift Gate
×
Free Shipping & Lift Gate
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
A.O. Smith - 100 Gal. Storage - 248 Gal. First Hour Delivery - 98% Thermal Efficiency - Natural Gas Water Heater - Direct Vent
Model: BTH-150
198 GPH Continuous Recovery Rate at 90
(1)
Add to Cart for Price
Factory-Direct
Free Shipping & Lift Gate
×
Free Shipping & Lift Gate
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
A.O. Smith - 100 Gal. Storage - 305 Gal. First Hour Delivery - 97% Thermal Efficiency - Natural Gas Water Heater - Direct Vent
Model: BTH-199
261 GPH Continuous Recovery Rate at 90
52% Buy This
(1)
Add to Cart for Price
Backordered
Est. Ship Date Mar 19
Free Shipping & Lift Gate
×
Free Shipping & Lift Gate
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Backorder
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