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Hot Water/Steam Unit Heaters

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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.
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Model Number HSB33S01 is the Number 1 Seller
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
14% Buy This
4.7 out of 54.7 out of 54.7 out of 54.7 out of 54.7 out of 5(6)
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On Sale Ends 03/31
$450.00
Was 
$482.00
SAVE $32.00
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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)
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On Sale Ends 03/31
$390.00
Was 
$412.00
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Model Number HSB47S01 is the Number 3 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)
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On Sale Ends 03/31
$550.00
Was 
$580.00
SAVE $30.00
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Model Number HSB86S01 is the Number 4 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
7% Buy This
4.7 out of 54.7 out of 54.7 out of 54.7 out of 54.7 out of 5(7)
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On Sale Ends 03/31
$645.00
Was 
$675.00
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Only 2 In-Stock
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Model Number V42S01 is the Number 5 Seller
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
7% Buy This
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$661.00
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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
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)
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On Sale Ends 03/31
$482.00
Was 
$500.00
SAVE $18.00
Only 2 In-Stock
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Learn More About V95S01
Modine V - 95,000 BTU - Hot Water/Steam Unit Heater - Vertical - Copper Heat Exchanger
Model: V95S01
Modine - V95S01 - 95,000 BTU - Hot Water/Steam Unit Heater - Vertical Orientation - Copper Heat Exchanger - 115V/60Hz/1 Phase
6% Buy This
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$877.00
Factory-Direct
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Learn More About HSB121S01
Modine HSB - 121,000 BTU - Hot Water/Steam Unit Heater - Horizontal - Copper Heat Exchanger - Top/Bottom Connections
Model: HSB121S01
Modine - HSB121S01 - 121,000 BTU - Hot Water/Steam Unit Heater - Horizontal Orientation - Copper Heat Exchanger - Top/Bottom Connections - 115V/60Hz/1 Phase
5% Buy This
4.6 out of 54.6 out of 54.6 out of 54.6 out of 54.6 out of 5(5)
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$1,070.00
Only 2 In-Stock
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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% Buy This
4.5 out of 54.5 out of 54.5 out of 54.5 out of 54.5 out of 5(8)
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On Sale Ends 03/31
$595.00
Was 
$640.00
SAVE $45.00
Only 3 In-Stock
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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% Buy This
4.6 out of 54.6 out of 54.6 out of 54.6 out of 54.6 out of 5(5)
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$450.00
Factory-Direct
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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
4% Buy This
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$1,054.00
Factory-Direct
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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 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
2% Buy This
4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5(5)
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$795.00
Only 1 In-Stock
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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
2% Buy This
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$1,285.00
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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Learn More About WS-44/62-HA11
Reznor WS-44/62 Suspended Hydronic Unit Heater - 2 Row Steel Coil - Hot Water Only - 62,000 BTU
Model: WS-44/62-HA11
Reznor WS-44/62 Suspended Hydronic Unit Heater, 2 Row Steel Coil, Hot Water Only - 62,000 BTU, 115V, two speed motor, 560-860 CFM
2% Buy This
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$722.11
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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
1% Buy This
4.8 out of 54.8 out of 54.8 out of 54.8 out of 54.8 out of 5(5)
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$2,040.00
Factory-Direct
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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 HSB18S01
Modine HSB - 18,000 BTU - Hot Water/Steam Unit Heater - Horizontal - Copper Heat Exchanger - Top/Bottom Connections
Model: HSB18S01
Modine - HSB18S01 - 18,000 BTU - Hot Water/Steam Unit Heater - Horizontal Orientation - Copper Heat Exchanger - Top/Bottom Connections - 115V/60Hz/1 Phase
1% Buy This
4.6 out of 54.6 out of 54.6 out of 54.6 out of 54.6 out of 5(5)
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$448.00
Factory-Direct
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Learn More About HSB108S01
Modine HSB - 108,000 BTU - Hot Water/Steam Unit Heater - Horizontal - Copper Heat Exchanger - Top/Bottom Connections
Model: HSB108S01
Modine - HSB108S01 - 108,000 BTU - Hot Water/Steam Unit Heater - Horizontal Orientation - Copper Heat Exchanger - Top/Bottom Connections - 115V/60Hz/1 Phase
1% Buy This
4.6 out of 54.6 out of 54.6 out of 54.6 out of 54.6 out of 5(5)
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$995.00
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Learn More About HSB258S01
Modine HSB - 258,000 BTU - Hot Water/Steam Unit Heater - Horizontal - Copper Heat Exchanger - Top/Bottom Connections
Model: HSB258S01
Modine - HSB258S01 - 258,000 BTU - Hot Water/Steam Unit Heater - Horizontal Orientation - Copper Heat Exchanger - Top/Bottom Connections - 115V/60Hz/1 Phase
1% Buy This
4.6 out of 54.6 out of 54.6 out of 54.6 out of 54.6 out of 5(5)
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$1,839.00
Only 1 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 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
1% Buy This
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$1,109.00
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.
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 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
1% Buy This
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$1,586.00
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.
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 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
1% Buy This
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$1,880.00
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 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
1% Buy This
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$1,997.00
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 VN385S04
Modine VN - 385,000 BTU - Hot Water/Steam Unit Heater - Vertical - Cupro Nickel Heat Exchanger
Model: VN385S04
Modine - VN385S04 - 385,000 BTU - Hot Water/Steam Unit Heater - Vertical Orientation - Cupro Nickel Heat Exchanger - 208V/60Hz/3 Phase
1% Buy This
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$3,934.00
Factory-Direct
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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.
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
1% Buy This
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$899.95
Factory-Direct
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