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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 HSB63S01 is the Number 1 Seller
Learn More About HSB63S01
Modine
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
31% 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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$640.00
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Model Number HC108S01 is the Number 2 Seller
Learn More About HC108S01
Modine
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
15% 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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$999.00
Only 2 In-Stock
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Model Number HSB86S01 is the Number 3 Seller
Learn More About HSB86S01
Modine
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)
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$675.00
Only 1 In-Stock
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Model Number HC33S01 is the Number 4 Seller
Learn More About HC33S01
Modine
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
8% 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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$500.00
Only 1 In-Stock
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Model Number HC18S01 is the Number 5 Seller
Learn More About HC18S01
Modine
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
8% 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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$412.00
In-Stock
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Learn More About HSB47S01
Modine
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
8% 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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$580.00
Factory-Direct
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Learn More About V193S01
Modine
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
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)
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$1,285.00
Factory-Direct
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2% Check Discount
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Learn More About WS-18/24-HA11
Reznor
Reznor WS-18/24 Suspended Hydronic Unit Heater - 2 Row Steel Coil - Hot Water Only - 24,000 BTU
Model: WS-18/24-HA11
Reznor WS-18/24 Suspended Hydronic Unit Heater, 2 Row Steel Coil, Hot Water Only - 24,000 BTU, 115V, two speed motor, 270-400 CFM
8% Buy This
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Q&A (2)
$499.95
Factory-Direct
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Learn More About HSB165S01
Modine
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)
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$1,280.00
Only 2 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.
Add To Cart
Learn More About HSB33S01
Modine
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)
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$487.00
In-Stock
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Learn More About HC47S01
Modine
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)
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$672.00
Only 5 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.
Add To Cart
Learn More About HC63S01
Modine
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
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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.
Add To Cart
Learn More About HC86S01
Modine
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
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Learn More About HC121S01
Modine
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)
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$1,080.00
Only 1 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 HSB24S01
Modine
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)
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$450.00
Only 1 In-Stock
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Add To Cart
Learn More About HSB121S01
Modine
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
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 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 HSB258S01
Modine
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
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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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 V42S01
Modine
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
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(1)
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$661.00
Only 1 In-Stock
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Learn More About V333S01
Modine
Modine V - 333,000 BTU - Hot Water/Steam Unit Heater - Vertical - Copper Heat Exchanger
Model: V333S01
Modine - V333S01 - 333,000 BTU - Hot Water/Steam Unit Heater - Vertical Orientation - Copper Heat Exchanger - 115V/60Hz/1 Phase
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(1)
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$2,174.00
Only 2 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 V385S04
Modine
Modine V - 385,000 BTU - Hot Water/Steam Unit Heater - Vertical - Copper Heat Exchanger
Model: V385S04
Modine - V385S04 - 385,000 BTU - Hot Water/Steam Unit Heater - Vertical Orientation - Copper Heat Exchanger - 208V/60Hz/3 Phase
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(1)
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$2,672.00
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 V500S04
Modine
Modine V - 500,000 BTU - Hot Water/Steam Unit Heater - Vertical - Copper Heat Exchanger
Model: V500S04
Modine - V500S04 - 500,000 BTU - Hot Water/Steam Unit Heater - Vertical Orientation - Copper Heat Exchanger - 208V/60Hz/3 Phase
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(1)
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$3,548.00
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 V952S04
Modine
Modine V - 952,000 BTU - Hot Water/Steam Unit Heater - Vertical - Copper Heat Exchanger
Model: V952S04
Modine - V952S04 - 952,000 BTU - Hot Water/Steam Unit Heater - Vertical Orientation - Copper Heat Exchanger - 208V/60Hz/3 Phase
5.0 out of 55.0 out of 55.0 out of 55.0 out of 55.0 out of 5(1)
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$8,310.00
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 WSD-24UH
WSD WSD-24UH, Hot Water Unit Heater - 210,000 BTU
Model: WSD-24UH
WSD WSD-24UH, Hot Water Unit Heater - 210,000 BTU, 115/230 volt, variable speed
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)
$894.01
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 PT279S01
Modine
Modine PT - 279,000 BTU - Hot Water/Steam Unit Heater - Horizontal - Copper Heat Exchanger
Model: PT279S01
Modine - PT279S01 - 279,000 BTU - Hot Water/Steam Unit Heater - Horizontal Orientation - Copper Heat Exchanger - 115V/60Hz/1 Phase
Write a Review
Ask a Question
$2,365.00
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

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