Horizontal Unit Heaters

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Maximum Input Capacity (BTU) Learn More
Maximum Input Capacity (BTU)
The Maximum Input Capacity describes how quickly the appliance will use fuel when delivering it's maximum capacity. The units may change depending on the fuel being used.
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Thermal Efficiency (%)
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Vent Type Learn More
Vent Type
Products that use combustion (burning) of fuel to create heat also create potentially dangerous gasses that need to be exhausted (AKA "Vented"). Depending on the product, venting can be done via a chimney, through a side wall, or use a second vent to provide fresh air to the appliance.
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Fuel Type Learn More
Fuel Type
To create heat, some form of fuel is required. Fuel Type specifies what the product uses as an input to create heat.
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Air Throw (Feet)
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Product Line
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Product Height (Inches)
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Product Width (Inches)
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Product Depth (Inches)
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Heat Exchanger Material
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Heating Capacity (kW) (kW)
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Maximum Sound Level (dB) Learn More
Maximum Sound Level (dB)
Sound levels are measured in decibels (dB). The lower the decibel rating, the less noise the product makes. As an example, a ticking watch is 20 dB while on the other end of the scale, a lawn mower is around 90 dB.
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Maximum Air Flow (CFM)
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Modine - HDS75AS0121 - 75,000 BTU - Hot Dawg HDS Gas Fired Unit Heater - Single-Stage Liquid Propane Burner - 80% Thermal Efficiency - Separated Combustion - Aluminized Steel Heat Exchanger - Propeller Driven - 115V/60Hz/1 Phase
Item#: 48459
Model#: HDS75AS0121
Brand: Modine
Sale: $1,444.00
On Sale Through 04/30
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Modine - PDP150AE0130 - 150,000 BTU - Gas Fired Unit Heater - Single-Stage Natural Gas Burner - 80% Thermal Efficiency - Power Vented - Aluminized Steel Heat Exchanger - Propeller Driven Air Propulsion - 115V/60Hz/1 Phase*
Item#: 48527
Model#: PDP150AE0130
Brand: Modine
Sale: $1,574.00
On Sale Through 04/30
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Modine - PDP200AE0185 - 200,000 BTU - Gas Fired Unit Heater - Single-Stage Liquid Propane Burner - 80% Thermal Efficiency - Power Vented - Aluminized Steel Heat Exchanger - Propeller Driven Air Propulsion - 115V/60Hz/1 Phase*
Item#: 48533
Model#: PDP200AE0185
Brand: Modine
Sale: $1,761.00
On Sale Through 04/30
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*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 map apply, see our full shipping policy for more details.
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*This product qualifies for Free Lift Gate Service. Items over 100lbs normally ship via semi-truck. Select this service if you need the product lowered to the ground curbside. To learn more about Lift Gate Service, read our shipping policy.
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Modine - PDP200AE0130 - 200,000 BTU - Gas Fired Unit Heater - Single-Stage Natural Gas Burner - 80% Thermal Efficiency - Power Vented - Aluminized Steel Heat Exchanger - Propeller Driven Air Propulsion - 115V/60Hz/1 Phase*
Item#: 48535
Model#: PDP200AE0130
Brand: Modine
Sale: $1,761.00
On Sale Through 04/30
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*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 map apply, see our full shipping policy for more details.
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Reznor - UDXC-100 - 105,000 BTU - Gas Fired Unit Heater - Power Vented - Natural Gas - Aluminized Heat Exchanger - 1,345 CFM - 115V
Item#: 157235
Model#: UDXC-100
Brand: Reznor
Sale: $1,401.00
On Sale Through 04/30
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Reznor - UDXC-250 - 250,000 BTU - Gas Fired Unit Heater - Power Vented - Natural Gas - Aluminized Heat Exchanger - 3,202 CFM - 115V
Item#: 157241
Model#: UDXC-250
Brand: Reznor
Sale: $2,269.00
On Sale Through 04/30
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Modine - HD75AS0121 - 75,000 BTU - Hot Dawg HD Gas Fired Unit Heater - Single-Stage Liquid Propane Burner - 80% Thermal Efficiency - Power Vented - Aluminized Steel Heat Exchanger - Propeller Driven - 115V/60Hz/1 Phase
Item#: 48435
Model#: HD75AS0121
Brand: Modine
Sale: $1,088.00
On Sale Through 04/30
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Modine - PDP150AE0185 - 150,000 BTU - Gas Fired Unit Heater - Single-Stage Liquid Propane Burner - 80% Thermal Efficiency - Power Vented - Aluminized Steel Heat Exchanger - Propeller Driven Air Propulsion - 115V/60Hz/1 Phase*
Item#: 48525
Model#: PDP150AE0185
Brand: Modine
Sale: $1,574.00
On Sale Through 04/30
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*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 map apply, see our full shipping policy for more details.
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In-Stock
Modine - HD125AS0121 - 125,000 BTU - Hot Dawg HD Gas Fired Unit Heater - Single-Stage Liquid Propane Burner - 80% Thermal Efficiency - Power Vented - Aluminized Steel Heat Exchanger - Propeller Driven - 115V/60Hz/1 Phase
Item#: 48419
Model#: HD125AS0121
Brand: Modine
Sale: $1,326.00
On Sale Through 04/30
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In-Stock
Modine - PDP150SE0130 - 150,000 BTU - Gas Fired Unit Heater - Single-Stage Natural Gas Burner - 80% Thermal Efficiency - Power Vented - Stainless Steel Heat Exchanger - Propeller Driven Air Propulsion - 115V/60Hz/1 Phase*
Item#: 48528
Model#: PDP150SE0130
Brand: Modine
Sale: $1,778.00
On Sale Through 04/30
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*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 map apply, see our full shipping policy for more details.
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Free Lift Gate
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Factory-Direct
Reznor - UDXC-75 - 75,000 BTU - Gas Fired Unit Heater - Power Vented - Natural Gas - Aluminized Heat Exchanger - 961 CFM - 115V
Item#: 157234
Model#: UDXC-75
Brand: Reznor
Sale: $1,233.00
On Sale Through 04/30
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In-Stock
Reznor - UDXC-200 - 200,000 BTU - Gas Fired Unit Heater - Power Vented - Natural Gas - Aluminized Heat Exchanger - 2,562 CFM - 115V
Item#: 157239
Model#: UDXC-200
Brand: Reznor
Sale: $1,927.00
On Sale Through 04/30
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*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 map apply, see our full shipping policy for more details.
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In-Stock
Modine - PDP300AE0130 - 300,000 BTU - Gas Fired Unit Heater - Single-Stage Natural Gas Burner - 80% Thermal Efficiency - Power Vented - Aluminized Steel Heat Exchanger - Propeller Driven Air Propulsion - 115V/60Hz/1 Phase*
Item#: 48543
Model#: PDP300AE0130
Brand: Modine
Sale: $2,441.00
On Sale Through 04/30
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*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 map apply, see our full shipping policy for more details.
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In-Stock
Reznor - UDXC-150 - 150,000 BTU - Gas Fired Unit Heater - Power Vented - Natural Gas - Aluminized Heat Exchanger - 1,921 CFM - 115V
Item#: 157237
Model#: UDXC-150
Brand: Reznor
Sale: $1,643.00
On Sale Through 04/30
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*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 map apply, see our full shipping policy for more details.
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In-Stock
Sale: $1,376.00
On Sale Through 04/30
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Reznor - UDXC-45 - 450,00 BTU - Gas Fired Unit Heater - Power Vented - Natural Gas - Aluminized Heat Exchanger - 629 CFM - 115V
Item#: 157232
Model#: UDXC-45
Brand: Reznor
Sale: $1,150.00
On Sale Through 04/30
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Modine - PDP400AE0130 - 400,000 BTU - Gas Fired Unit Heater - Single-Stage Natural Gas Burner - 80% Thermal Efficiency - Power Vented - Aluminized Steel Heat Exchanger - Propeller Driven Air Propulsion - 115V/60Hz/1 Phase*
Item#: 48551
Model#: PDP400AE0130
Brand: Modine
Sale: $2,811.00
On Sale Through 04/30
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In-Stock
Reznor - UDXC-60 - 60,000 BTU - Gas Fired Unit Heater - Power Vented - Natural Gas - Aluminized Heat Exchanger - 769 CFM - 115V
Item#: 157233
Model#: UDXC-60
Brand: Reznor
Sale: $1,138.00
On Sale Through 04/30
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In-Stock
Modine - PDP300AE0185 - 300,000 BTU - Gas Fired Unit Heater - Single-Stage Liquid Propane Burner - 80% Thermal Efficiency - Power Vented - Aluminized Steel Heat Exchanger - Propeller Driven Air Propulsion - 115V/60Hz/1 Phase*
Item#: 48541
Model#: PDP300AE0185
Brand: Modine
Sale: $2,441.00
On Sale Through 04/30
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*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 map apply, see our full shipping policy for more details.
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In-Stock
Sale: $1,606.00
On Sale Through 04/30
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Factory-Direct
Sale: $2,670.00
On Sale Through 04/30
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Modine - HD100AS0111 - 100,000 BTU - Hot Dawg HD Gas Fired Unit Heater - Single-Stage Natural Gas Burner - 80% Thermal Efficiency - Power Vented - Aluminized Steel Heat Exchanger - Propeller Driven - 115V/60Hz/1 Phase
Item#: 48417
Model#: HD100AS0111
Brand: Modine
Sale: $1,293.00
On Sale Through 04/30
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Modine - PTP200AS0111 - 200,000 BTU - Gas Fired Unit Heater - Single-Stage Natural Gas Burner* - 82% Thermal Efficiency - Power Vented - Aluminized Steel Heat Exchanger - Propeller Driven - 115V/60Hz/1 Phase*
Item#: 152241
Model#: PTP200AS0111
Brand: Modine
Sale: $1,629.00
On Sale Through 04/30
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*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 map apply, see our full shipping policy for more details.
Free Lift Gate
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*This product qualifies for Free Lift Gate Service. Items over 100lbs normally ship via semi-truck. Select this service if you need the product lowered to the ground curbside. To learn more about Lift Gate Service, read our shipping policy.
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Reznor - UDXC-175 - 175,000 BTU - Gas Fired Unit Heater - Power Vented - Natural Gas - Aluminized Heat Exchanger - 2,242 CFM - 115V
Item#: 157238
Model#: UDXC-175
Brand: Reznor
Sale: $1,859.00
On Sale Through 04/30
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*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 map apply, see our full shipping policy for more details.
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*This product qualifies for Free Lift Gate Service. Items over 100lbs normally ship via semi-truck. Select this service if you need the product lowered to the ground curbside. To learn more about Lift Gate Service, read our shipping policy.
In-Stock