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Indirect Water Heaters

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Indirect water heaters use your existing boiler system for an efficient way to provide hot water to your home or building. Shop our selection of indirect water heaters and find the perfect one today.
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Model Number 633600001 is the Number 1 Seller
Learn More About 633600001
Weil-McLain Aqua Plus 45 - 39.9 Gal. - Indirect Water Heater
Model: 633600001
50% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(9)
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$1,129.00
In-Stock
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Model Number SMART 40 is the Number 2 Seller
Learn More About SMART 40
Triangle Tube SMART 40 - 36 Gal. - Indirect Water Heater
Model: SMART 40
8% Buy This
4.0 out of 54.0 out of 54.0 out of 54.0 out of 54.0 out of 5(13)
Q&A (2)
$1,099.00
In-Stock
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2% Check Discount
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Model Number 633600000 is the Number 3 Seller
Learn More About 633600000
Weil-McLain Aqua Plus 35 - 29.7 Gal. - Indirect Water Heater
Model: 633600000
8% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(8)
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$1,159.00
In-Stock
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2% Check Discount
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Model Number AL35SL is the Number 4 Seller
Learn More About AL35SL
Burnham AL35SL - 35 Gal. - Indirect Water Heater
Model: AL35SL
8% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(1)
Q&A (2)
$1,179.00
Factory-Direct
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2% Check Discount
Learn More About 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.
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Model Number SMART 120 is the Number 5 Seller
Learn More About SMART 120
Triangle Tube SMART 120 - 119 Gal. - Indirect Water Heater
Model: SMART 120
5% Buy This
4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5(9)
Q&A (1)
$2,699.00
In-Stock
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Learn More About Free Freight *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 Icon
2% Check Discount
Learn More About 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.
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Learn More About 633600002
Weil-McLain Aqua Plus 55 - 54.1 Gal. - Indirect Water Heater
Model: 633600002
5% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(6)
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$1,499.00
In-Stock
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2% Check Discount Icon
2% Check Discount
Learn More About 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.
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Learn More About SMART 50
Triangle Tube SMART 50 - 46 Gal. - Indirect Water Heater
Model: SMART 50
3% Buy This
4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5(9)
Q&A (3)
$1,249.00
In-Stock
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Free Shipping & Lift Gate
Learn More About Free Freight *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.
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2% Check Discount
Learn More About 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.
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Learn More About 633600003
Weil-McLain Aqua Plus 85 - 81.6 Gal. - Indirect Water Heater
Model: 633600003
3% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(6)
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$1,849.00
In-Stock
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2% Check Discount
Learn More About 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.
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Learn More About AL50SL
Burnham AL50SL - 50 Gal. - Indirect Water Heater
Model: AL50SL
3% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(1)
Q&A (3)
$1,299.00
Factory-Direct
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Free Shipping & Lift Gate
Learn More About Free Freight *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 Icon
2% Check Discount
Learn More About 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.
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Learn More About MT080GBR
Crown Boiler MT080GBR - 75 Gal. - Indirect Water Heater
Model: MT080GBR
3% Buy This
Write a Review
Ask a Question
$1,869.00
Factory-Direct
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Learn More About Free Freight *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.
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2% Check Discount
Learn More About 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.
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Learn More About CH-41Z-B
Amtrol CH-41Z - 41 Gal. - Indirect Water Heater - Blue
Model: CH-41Z-B
Includes Mechanical Control.
3% Buy This
Write a Review
Q&A (1)
$1,099.00
Only 4 In-Stock
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2% Check Discount Icon
2% Check Discount
Learn More About 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.
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Learn More About AL55LT
Burnham AL55LT - 55 Gal. - Indirect Water Heater
Model: AL55LT
3% Buy This
Write a Review
Ask a Question
$1,199.00
Factory-Direct
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Free Shipping & Lift Gate
Learn More About Free Freight *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 Icon
2% Check Discount
Learn More About 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
Learn More About SMART 30
Triangle Tube SMART 30 - 28 Gal. - Indirect Water Heater
Model: SMART 30
4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5(11)
Q&A (1)
$999.00
In-Stock
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Learn More About Free Freight *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.
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Learn More About SMART 60
Triangle Tube SMART 60 - 56 Gal. - Indirect Water Heater
Model: SMART 60
4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5(9)
Q&A (2)
$1,399.00
In-Stock
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Free Shipping & Lift Gate
Learn More About Free Freight *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 Icon
2% Check Discount
Learn More About 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
Learn More About SMART 80
Triangle Tube SMART 80 - 70 Gal. - Indirect Water Heater
Model: SMART 80
4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5(9)
Q&A (2)
$1,899.00
In-Stock
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Free Shipping & Lift Gate
Learn More About Free Freight *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 Icon
2% Check Discount
Learn More About 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
Learn More About SMART 100
Triangle Tube SMART 100 - 95 Gal. - Indirect Water Heater
Model: SMART 100
4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5(9)
Q&A (2)
$2,169.00
In-Stock
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Free Shipping & Lift Gate
Learn More About Free Freight *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 Icon
2% Check Discount
Learn More About 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
Learn More About 633800513
Weil-McLain Aqua Logic - 18.2 Gal. - Low Profile Indirect Water Heater
Model: 633800513
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(7)
Ask a Question
$1,479.00
In-Stock
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Free Shipping
Learn More About Free Freight *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 Icon
2% Check Discount
Learn More About 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.
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Learn More About 633600004
Weil-McLain Aqua Plus 105 - 110.9 Gal. - Indirect Water Heater
Model: 633600004
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(6)
Ask a Question
$2,599.00
In-Stock
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Free Shipping & Lift Gate
Learn More About Free Freight *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 Icon
2% Check Discount
Learn More About 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
Learn More About 633500203
Weil-McLain Aqua Pro 119 - 119 Gal. - Indirect Water Heater
Model: 633500203
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(3)
Ask a Question
$2,799.00
In-Stock
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Free Shipping & Lift Gate
Learn More About Free Freight *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 Icon
2% Check Discount
Learn More About 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
Learn More About 633500200
Weil-McLain Aqua Pro 30 - 30 Gal. - Indirect Water Heater
Model: 633500200
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(3)
Ask a Question
$1,249.00
Only 3 In-Stock
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Free Shipping
Learn More About Free Freight *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 Icon
2% Check Discount
Learn More About 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
Learn More About 633500201
Weil-McLain Aqua Pro 55 - 55 Gal. - Indirect Water Heater
Model: 633500201
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(3)
Ask a Question
$1,669.00
In-Stock
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Free Shipping
Learn More About Free Freight *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 Icon
2% Check Discount
Learn More About 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
Learn More About 633500202
Weil-McLain Aqua Pro 80 - 80 Gal. - Indirect Water Heater
Model: 633500202
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(3)
Ask a Question
$1,999.00
In-Stock
Freight Icon
Free Shipping & Lift Gate
Learn More About Free Freight *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 Icon
2% Check Discount
Learn More About 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
Learn More About SST450-119
Buderus SST450-119 - 113.4 Gal. - Indirect Water Heater
Model: SST450-119
4.0 out of 54.0 out of 54.0 out of 54.0 out of 54.0 out of 5(1)
Q&A (1)
$2,989.00
Only 3 In-Stock
Freight Icon
Free Shipping & Lift Gate
Learn More About Free Freight *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 Icon
2% Check Discount
Learn More About 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
Learn More About MT065GBR
Crown Boiler MT065GBR - 60 Gal. - Indirect Water Heater
Model: MT065GBR
Write a Review
Ask a Question
$1,679.00
Factory-Direct
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Free Shipping & Lift Gate
Learn More About Free Freight *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 Icon
2% Check Discount
Learn More About 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

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