Hot Water/Steam Unit Heaters

Loading Image
Hot water/steam unit heaters are designed to provide spot heating for rooms that don't respond to other heating methods, such as garages, workshops, and other rooms. Due to their popularity, hydronic unit heaters are available from some of the top brands in the entire HVAC industry and are a fantastic method of heating for individual spaces.
Filter By
  • Best Selling
  • Price: Low to High
  • Price: High to Low
  • Name: A-Z
  • Name: Z-A
  • Recommends Only
  • Closeouts Only
  • In-stock Only
  • Next Day Air Only
  • Availability
Model Number H412 2/3-AS/FS-GW is a Recently Added Product
Learn More About King Electric H412 2/3-AS/FS-GW
$498.00
Factory-Direct
Freight Icon
Free Shipping
Learn More About Free Freight
Model Number HSB86S01 is the Number 1 Seller
Learn More About Modine HSB86S01
Modine
Model HSB86S01 is a Recommended Product
Modine - HSB86S01 - 86,000 BTU - Hot Water/Steam Unit Heater - Horizontal Orientation - Copper Heat Exchanger - Top/Bottom Connections - 115V/60Hz/1 Phase
11% Buy This
$750.60
Was 
$834.00
SAVE $83.40
In-Stock
Freight Icon
Free Shipping
Learn More About Free Freight
Model Number HSB290S01 is the Number 2 Seller
Learn More About Modine HSB290S01
Modine
Modine - HSB290S01 - 290,000 BTU - Hot Water/Steam Unit Heater - Horizontal Orientation - Copper Heat Exchanger - Top/Bottom Connections - 115V/60Hz/1 Phase
7% Buy This
$2,051.00
Factory-Direct
Freight Icon
Free Shipping & Lift Gate
Learn More About Free Freight
2% Check Discount Icon
2% Check Discount
Learn More About 2% Check Discount
Model Number V139S01 is the Number 3 Seller
Learn More About Modine V139S01
Modine
Modine - V139S01 - 139,000 BTU - Hot Water/Steam Unit Heater - Vertical Orientation - Copper Heat Exchanger - 115V/60Hz/1 Phase
7% Buy This
$1,054.00
Factory-Direct
Freight Icon
Free Shipping & Lift Gate
Learn More About Free Freight
2% Check Discount Icon
2% Check Discount
Learn More About 2% Check Discount
Model Number WS-78/110-HA11 is the Number 4 Seller
Learn More About Reznor WS-78/110-HA11
$1,033.00
Factory-Direct
Freight Icon
Free Shipping & Lift Gate
Learn More About Free Freight
2% Check Discount Icon
2% Check Discount
Learn More About 2% Check Discount
Model Number HC33S01 is the Number 5 Seller
Learn More About Modine HC33S01
Modine
Model HC33S01 is a Recommended Product
Modine - HC33S01 - 33,000 BTU - Hot Water/Steam Unit Heater - Horizontal Orientation - Copper Heat Exchanger - Side Connections - 115V/60Hz/1 Phase
4% Buy This
$500.00
Only 1 In-Stock
Freight Icon
Free Shipping
Learn More About Free Freight
Learn More About Modine HSB33S01
Modine
Modine - HSB33S01 - 33,000 BTU - Hot Water/Steam Unit Heater - Horizontal Orientation - Copper Heat Exchanger - Top/Bottom Connections - 115V/60Hz/1 Phase
4% Buy This
$540.90
Was 
$601.00
SAVE $60.10
Only 5 In-Stock
Freight Icon
Free Shipping
Learn More About Free Freight
Learn More About Modine HSB24S01
Modine
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
$450.00
Only 2 In-Stock
Freight Icon
Free Shipping
Learn More About Free Freight
Learn More About Modine V42S01
Modine
Modine - V42S01 - 42,000 BTU - Hot Water/Steam Unit Heater - Vertical Orientation - Copper Heat Exchanger - 115V/60Hz/1 Phase
4% Buy This
$661.00
Factory-Direct
Freight Icon
Free Shipping
Learn More About Free Freight
Learn More About Modine V95S01
Modine
Modine - V95S01 - 95,000 BTU - Hot Water/Steam Unit Heater - Vertical Orientation - Copper Heat Exchanger - 115V/60Hz/1 Phase
4% Buy This
$877.00
Only 3 In-Stock
Freight Icon
Free Shipping
Learn More About Free Freight
Learn More About Reznor WS-44/62-HA11
$783.00
Factory-Direct
Freight Icon
Free Shipping & Lift Gate
Learn More About Free Freight
Learn More About Modine HC47S01
Modine
Modine - HC47S01 - 47,000 BTU - Hot Water/Steam Unit Heater - Horizontal Orientation - Copper Heat Exchanger - Side Connections - 115V/60Hz/1 Phase
$672.00
Only 2 In-Stock
Freight Icon
Free Shipping
Learn More About Free Freight
Learn More About Modine HC63S01
Modine
Modine - HC63S01 - 63,000 BTU - Hot Water/Steam Unit Heater - Horizontal Orientation - Copper Heat Exchanger - Side Connections - 115V/60Hz/1 Phase
$730.00
Only 1 In-Stock
Freight Icon
Free Shipping
Learn More About Free Freight
Learn More About Modine V59S01
Modine
Modine - V59S01 - 59,000 BTU - Hot Water/Steam Unit Heater - Vertical Orientation - Copper Heat Exchanger - 115V/60Hz/1 Phase
$695.00
Only 3 In-Stock
Freight Icon
Free Shipping
Learn More About Free Freight
Learn More About Modine V193S01
Modine
Modine - V193S01 - 193,000 BTU - Hot Water/Steam Unit Heater - Vertical Orientation - Copper Heat Exchanger - 115V/60Hz/1 Phase
$1,285.00
Only 5 In-Stock
Freight Icon
Free Shipping & Lift Gate
Learn More About Free Freight
2% Check Discount Icon
2% Check Discount
Learn More About 2% Check Discount
Learn More About Modine V247S01
Modine
Modine - V247S01 - 247,000 BTU - Hot Water/Steam Unit Heater - Vertical Orientation - Copper Heat Exchanger - 115V/60Hz/1 Phase
$1,880.00
Only 1 In-Stock
Freight Icon
Free Shipping & Lift Gate
Learn More About Free Freight
2% Check Discount Icon
2% Check Discount
Learn More About 2% Check Discount
Learn More About Modine V385S04
Modine
Modine - V385S04 - 385,000 BTU - Hot Water/Steam Unit Heater - Vertical Orientation - Copper Heat Exchanger - 208V/60Hz/3 Phase
$2,672.00
Factory-Direct
Freight Icon
Free Shipping & Lift Gate
Learn More About Free Freight
2% Check Discount Icon
2% Check Discount
Learn More About 2% Check Discount
Learn More About Modine V500S04
Modine
Modine - V500S04 - 500,000 BTU - Hot Water/Steam Unit Heater - Vertical Orientation - Copper Heat Exchanger - 208V/60Hz/3 Phase
$3,548.00
Factory-Direct
Freight Icon
Free Shipping & Lift Gate
Learn More About Free Freight
2% Check Discount Icon
2% Check Discount
Learn More About 2% Check Discount
Learn More About Modine V952S04
Modine
Modine - V952S04 - 952,000 BTU - Hot Water/Steam Unit Heater - Vertical Orientation - Copper Heat Exchanger - 208V/60Hz/3 Phase
$8,310.00
Factory-Direct
Freight Icon
Free Shipping & Lift Gate
Learn More About Free Freight
2% Check Discount Icon
2% Check Discount
Learn More About 2% Check Discount
Learn More About WSD WSD-24UH
WSD WSD-24UH, Hot Water Unit Heater - 210,000 BTU, 115/230 volt, variable speed
$984.00
Factory-Direct
Freight Icon
Free Shipping & Lift Gate
Learn More About Free Freight
Learn More About Modine PT500S04
Modine
Modine - PT500S04 - 500,000 BTU - Hot Water/Steam Unit Heater - Horizontal Orientation - Copper Heat Exchanger - 208V/60Hz/3 Phase
$4,199.00
Factory-Direct
Freight Icon
Free Shipping & Lift Gate
Learn More About Free Freight
2% Check Discount Icon
2% Check Discount
Learn More About 2% Check Discount
Learn More About Modine PT610S04
Modine
Modine - PT610S04 - 610,000 BTU - Hot Water/Steam Unit Heater - Horizontal Orientation - Copper Heat Exchanger - 208V/60Hz/3 Phase
$5,177.00
Factory-Direct
Freight Icon
Free Shipping & Lift Gate
Learn More About Free Freight
2% Check Discount Icon
2% Check Discount
Learn More About 2% Check Discount
Learn More About Modine PT952S04
Modine
Modine - PT952S04 - 952,000 BTU - Hot Water/Steam Unit Heater - Horizontal Orientation - Copper Heat Exchanger - 208V/60Hz/3 Phase
$9,410.00
Factory-Direct
Freight Icon
Free Shipping & Lift Gate
Learn More About Free Freight
2% Check Discount Icon
2% Check Discount
Learn More About 2% Check Discount
Learn More About Modine PTN279S01
Modine
Modine - PTN279S01 - 279,000 BTU - Hot Water/Steam Unit Heater - Horizontal Orientation - Cupro Nickel Heat Exchanger - 115V/60Hz/1 Phase
$3,381.00
Factory-Direct
Freight Icon
Free Shipping & Lift Gate
Learn More About Free Freight
2% Check Discount Icon
2% Check Discount
Learn More About 2% Check Discount