Shipping Crate Icon
Free Shipping On Orders Over $199
Welcome:  Sign In | Contact Us
Call Us: (866)-437-7998
Home » » »

Hot Water/Steam Unit Heaters

Quick Search
Plus Icon
Loading Image
Find the perfect hot water/steam unit heater at eComfort. We carry a wide selection of hot water/steam unit heaters from the top brands. Shop our selection or let our experts help you find your hot water/steam unit heater today.
Filter ▼
Model Number HSB86S01 is the Number 1 Seller
Learn More About HSB86S01
Model HSB86S01 is a Recommended Product
Modine HSB - 86,000 BTU - Hot Water/Steam Unit Heater - Horizontal - Copper Heat Exchanger - Top/Bottom Connections
Model: HSB86S01
Modine - HSB86S01 - 86,000 BTU - Hot Water/Steam Unit Heater - Horizontal Orientation - Copper Heat Exchanger - Top/Bottom Connections - 115V/60Hz/1 Phase
15% Buy This
4.7 out of 54.7 out of 54.7 out of 54.7 out of 54.7 out of 5(7)
Ask a Question
$675.00
Factory-Direct
Freight Icon
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.
Add To Cart
Model Number HC18S01 is the Number 2 Seller
Learn More About HC18S01
Modine HC - 18,000 BTU - Hot Water/Steam Unit Heater - Horizontal - Copper Heat Exchanger - Side Connections
Model: HC18S01
Modine - HC18S01 - 18,000 BTU - Hot Water/Steam Unit Heater - Horizontal Orientation - Copper Heat Exchanger - Side Connections - 115V/60Hz/1 Phase
12% Buy This
4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5(5)
Ask a Question
$412.00
In-Stock
Freight Icon
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.
Add To Cart
Model Number HC33S01 is the Number 3 Seller
Learn More About HC33S01
Model HC33S01 is a Recommended Product
Modine HC - 33,000 BTU - Hot Water/Steam Unit Heater - Horizontal - Copper Heat Exchanger - Side Connections
Model: HC33S01
Modine - HC33S01 - 33,000 BTU - Hot Water/Steam Unit Heater - Horizontal Orientation - Copper Heat Exchanger - Side Connections - 115V/60Hz/1 Phase
9% Buy This
4.9 out of 54.9 out of 54.9 out of 54.9 out of 54.9 out of 5(7)
Ask a Question
$500.00
Only 2 In-Stock
Freight Icon
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.
Add To Cart
Model Number HSB47S01 is the Number 4 Seller
Learn More About HSB47S01
Modine HSB - 47,000 BTU - Hot Water/Steam Unit Heater - Horizontal - Copper Heat Exchanger - Top/Bottom Connections
Model: HSB47S01
Modine - HSB47S01 - 47,000 BTU - Hot Water/Steam Unit Heater - Horizontal Orientation - Copper Heat Exchanger - Top/Bottom Connections - 115V/60Hz/1 Phase
9% Buy This
4.6 out of 54.6 out of 54.6 out of 54.6 out of 54.6 out of 5(5)
Ask a Question
$580.00
Only 1 In-Stock
Freight Icon
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.
Add To Cart
Model Number HHD45S01 is the Number 5 Seller
Learn More About HHD45S01
Modine Hot Dawg HHD - 45,000 BTU - Hot Water Unit Heater - Low Profile - Horizontal - Copper Heat Exchanger
Model: HHD45S01
Modine - HHD45S01 - 45,000 BTU - Hot Water Unit Heater - Low Profile - Horizontal Orientation - Copper Heat Exchanger - 115V/60Hz/1 Phase - Order Number 63713
9% Buy This
Write a Review
Ask a Question
$1,074.00
Factory-Direct
Freight Icon
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 HC108S01
Model HC108S01 is a Recommended Product
Modine HC - 108,000 BTU - Hot Water/Steam Unit Heater - Horizontal - Copper Heat Exchanger - Side Connections
Model: HC108S01
Modine - HC108S01 - 108,000 BTU - Hot Water/Steam Unit Heater - Horizontal Orientation - Copper Heat Exchanger - Side Connections - 115V/60Hz/1 Phase
6% Buy This
4.9 out of 54.9 out of 54.9 out of 54.9 out of 54.9 out of 5(7)
Ask a Question
$999.00
Factory-Direct
Freight Icon
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.
Add To Cart
Learn More About HC290S01
Modine HC - 290,000 BTU - Hot Water/Steam Unit Heater - Horizontal - Copper Heat Exchanger - Side Connections
Model: HC290S01
Modine - HC290S01 - 290,000 BTU - Hot Water/Steam Unit Heater - Horizontal Orientation - Copper Heat Exchanger - Side Connections - 115V/60Hz/1 Phase
6% Buy This
4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5(5)
Ask a Question
$2,040.00
Factory-Direct
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 V42S01
Modine V - 42,000 BTU - Hot Water/Steam Unit Heater - Vertical - Copper Heat Exchanger
Model: V42S01
Modine - V42S01 - 42,000 BTU - Hot Water/Steam Unit Heater - Vertical Orientation - Copper Heat Exchanger - 115V/60Hz/1 Phase
6% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(1)
Ask a Question
$661.00
Factory-Direct
Freight Icon
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.
Add To Cart
Learn More About V193S01
Modine V - 193,000 BTU - Hot Water/Steam Unit Heater - Vertical - Copper Heat Exchanger
Model: V193S01
Modine - V193S01 - 193,000 BTU - Hot Water/Steam Unit Heater - Vertical Orientation - Copper Heat Exchanger - 115V/60Hz/1 Phase
6% Buy This
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(1)
Ask a Question
$1,285.00
Factory-Direct
Freight Icon
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 V139S01
Modine V - 139,000 BTU - Hot Water/Steam Unit Heater - Vertical - Copper Heat Exchanger
Model: V139S01
Modine - V139S01 - 139,000 BTU - Hot Water/Steam Unit Heater - Vertical Orientation - Copper Heat Exchanger - 115V/60Hz/1 Phase
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)
Ask a Question
$1,054.00
Factory-Direct
Freight Icon
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 V161S01
Modine V - 161,000 BTU - Hot Water/Steam Unit Heater - Vertical - Copper Heat Exchanger
Model: V161S01
Modine - V161S01 - 161,000 BTU - Hot Water/Steam Unit Heater - Vertical Orientation - Copper Heat Exchanger - 115V/60Hz/1 Phase
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)
Ask a Question
$1,109.00
Factory-Direct
Freight Icon
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 V212S01
Modine V - 212,000 BTU - Hot Water/Steam Unit Heater - Vertical - Copper Heat Exchanger
Model: V212S01
Modine - V212S01 - 212,000 BTU - Hot Water/Steam Unit Heater - Vertical Orientation - Copper Heat Exchanger - 115V/60Hz/1 Phase
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)
Ask a Question
$1,586.00
Factory-Direct
Freight Icon
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 V247S01
Modine V - 247,000 BTU - Hot Water/Steam Unit Heater - Vertical - Copper Heat Exchanger
Model: V247S01
Modine - V247S01 - 247,000 BTU - Hot Water/Steam Unit Heater - Vertical Orientation - Copper Heat Exchanger - 115V/60Hz/1 Phase
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)
Ask a Question
$1,880.00
Factory-Direct
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 V279S01
Modine V - 279,000 BTU - Hot Water/Steam Unit Heater - Vertical - Copper Heat Exchanger
Model: V279S01
Modine - V279S01 - 279,000 BTU - Hot Water/Steam Unit Heater - Vertical Orientation - Copper Heat Exchanger - 115V/60Hz/1 Phase
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)
Ask a Question
$1,997.00
Factory-Direct
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 WS-78/110-HA11
Reznor WS-78/110 Suspended Hydronic Unit Heater - 2 Row Steel Coil - Hot Water Only - 110,000 BTU
Model: WS-78/110-HA11
Reznor WS-78/110 Suspended Hydronic Unit Heater, 2 Row Steel Coil, Hot Water Only - 110,000 BTU, 115V, two speed motor, 1100-1650 CFM
3% Buy This
Write a Review
Q&As (2)
$899.95
Factory-Direct
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.
Add To Cart
Learn More About HHD30S01
Modine Hot Dawg HHD - 30,000 BTU - Hot Water Unit Heater - Low Profile - Horizontal - Copper Heat Exchanger
Model: HHD30S01
Modine - HHD30S01 - 30,000 BTU - Hot Water Unit Heater - Low Profile - Horizontal Orientation - Copper Heat Exchanger - 115V/60Hz/1 Phase - Order Number 63712
3% Buy This
Write a Review
Ask a Question
$930.00
Factory-Direct
Freight Icon
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.
Add To Cart
Learn More About HSB63S01
Model HSB63S01 is a Recommended Product
Modine HSB - 63,000 BTU - Hot Water/Steam Unit Heater - Horizontal - Copper Heat Exchanger - Top/Bottom Connections
Model: HSB63S01
Modine - HSB63S01 - 63,000 BTU - Hot Water/Steam Unit Heater - Horizontal Orientation - Copper Heat Exchanger - Top/Bottom Connections - 115V/60Hz/1 Phase
4.5 out of 54.5 out of 54.5 out of 54.5 out of 54.5 out of 5(8)
Ask a Question
$640.00
Only 3 In-Stock
Freight Icon
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.
Add To Cart
Learn More About HSB165S01
Model HSB165S01 is a Recommended Product
Modine HSB - 165,000 BTU - Hot Water/Steam Unit Heater - Horizontal - Copper Heat Exchanger - Top/Bottom Connections
Model: HSB165S01
Modine - HSB165S01 - 165,000 BTU - Hot Water/Steam Unit Heater - Horizontal Orientation - Copper Heat Exchanger - Top/Bottom Connections - 115V/60Hz/1 Phase
4.7 out of 54.7 out of 54.7 out of 54.7 out of 54.7 out of 5(7)
Ask a Question
$1,280.00
Only 2 In-Stock
Freight Icon
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 HSB33S01
Modine HSB - 33,000 BTU - Hot Water/Steam Unit Heater - Horizontal - Copper Heat Exchanger - Top/Bottom Connections
Model: HSB33S01
Modine - HSB33S01 - 33,000 BTU - Hot Water/Steam Unit Heater - Horizontal Orientation - Copper Heat Exchanger - Top/Bottom Connections - 115V/60Hz/1 Phase
4.7 out of 54.7 out of 54.7 out of 54.7 out of 54.7 out of 5(6)
Ask a Question
$482.00
In-Stock
Freight Icon
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.
Add To Cart
Learn More About HC47S01
Modine HC - 47,000 BTU - Hot Water/Steam Unit Heater - Horizontal - Copper Heat Exchanger - Side Connections
Model: HC47S01
Modine - HC47S01 - 47,000 BTU - Hot Water/Steam Unit Heater - Horizontal Orientation - Copper Heat Exchanger - Side Connections - 115V/60Hz/1 Phase
4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5(5)
Ask a Question
$672.00
Only 5 In-Stock
Freight Icon
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.
Add To Cart
Learn More About HC63S01
Modine HC - 63,000 BTU - Hot Water/Steam Unit Heater - Horizontal - Copper Heat Exchanger - Side Connections
Model: HC63S01
Modine - HC63S01 - 63,000 BTU - Hot Water/Steam Unit Heater - Horizontal Orientation - Copper Heat Exchanger - Side Connections - 115V/60Hz/1 Phase
4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5(5)
Ask a Question
$730.00
Only 2 In-Stock
Freight Icon
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.
Add To Cart
Learn More About HC86S01
Modine HC - 86,000 BTU - Hot Water/Steam Unit Heater - Horizontal - Copper Heat Exchanger - Side Connections
Model: HC86S01
Modine - HC86S01 - 86,000 BTU - Hot Water/Steam Unit Heater - Horizontal Orientation - Copper Heat Exchanger - Side Connections - 115V/60Hz/1 Phase
4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5(5)
Ask a Question
$795.00
Only 1 In-Stock
Freight Icon
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.
Add To Cart
Learn More About HC121S01
Modine HC - 121,000 BTU - Hot Water/Steam Unit Heater - Horizontal - Copper Heat Exchanger - Side Connections
Model: HC121S01
Modine - HC121S01 - 121,000 BTU - Hot Water/Steam Unit Heater - Horizontal Orientation - Copper Heat Exchanger - Side Connections - 115V/60Hz/1 Phase
4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5(5)
Ask a Question
$1,080.00
Only 1 In-Stock
Freight Icon
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 HSB24S01
Modine HSB - 24,000 BTU - Hot Water/Steam Unit Heater - Horizontal - Copper Heat Exchanger - Top/Bottom Connections
Model: HSB24S01
Modine - HSB24S01 - 24,000 BTU - Hot Water/Steam Unit Heater - Horizontal Orientation - Copper Heat Exchanger - Top/Bottom Connections - 115V/60Hz/1 Phase
4.6 out of 54.6 out of 54.6 out of 54.6 out of 54.6 out of 5(5)
Ask a Question
$450.00
Only 1 In-Stock
Freight Icon
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.
Add To Cart

ABOUT US
+−
COMMUNITY
+−
CUSTOMER SERVICE
+−
DISCOUNT DEN
+−
PARTNERSHIPS
+−
PRODUCT SUPPORT
+−
Experts
Better Business Bureau Internet Retailer Inc 5000
CALL TO ORDER
(866) 554-4328
Hide
Visit eComfort on Facebook
View the eComfort Twitter Profile Page
Follow eComfort on Pinterest
View eComfort YouTube Channel