4" Reznor Unit Heater Horizontal Vent Kit - Category 1

Name: 4" Reznor Unit Heater Horizontal Vent Kit - Category 1
Brand: Reznor
SKU: 4IN-CAT1-HORZ-KIT
Price: 377.17 USD
Availability: InStock

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Reznor

Out of stock

Model

4IN-CAT1-HORZ-KIT

189058

Was $382.55

Your Low Price $377.17

Description

The 4" Reznor Unit Heater Horizontal Vent Kit - Category 1 - 4IN-CAT1-HORZ-KIT is carefully crafted to provide efficient and safe venting for Reznor unit heaters. This all-inclusive kit contains everything needed for a vertical installation, ensuring top performance and compliance with safety standards. Perfect for both residential and commercial use, this vent kit makes installation easy while upholding high quality and reliability.

Features

Complete Kit: Includes all essential components for vertical installation.
High Compatibility: Specifically designed for Reznor unit heaters.
Safety Compliance: Meets all necessary safety standards for secure operation.
Optimal Performance: Ensures efficient venting for maximum heater performance.
Durable Construction: Made from high-quality materials for long-lasting use.
Easy Installation: Simplifies the installation process with clear instructions.
Included SKUs: 4MDC, 4M24, 4M12, 4M45/60, 4MPT.

Reznor CC1 4" Vent Cap

The Reznor 4" Vent Cap is perfect for when you need to seal off unneeded vents and protect against moisture and debris. This vent cap is manufactured for Reznor UDX models 30-125.

Metal-Fab 4" 4MDC Draft Hood Connector

The Metal-Fab 4MDC is a durable round draft hood connector, designed for use with Type B gas vent systems. Featuring an aluminum inner wall and galvanized steel outer wall, it ensures long-lasting performance and meets UL 441 safety standards for gas appliances. Ideal for both residential and commercial applications, it provides a reliable connection for various gas vent systems.

4M24 Metal-Fab 2 ft Pipe Length

Two foot pipe length used with B-vent. Male end.

4M12 Metal-Fab B-Vent Pipe - 12"

One foot pipe length used with B-vent. Male end. 4" duct diameter.

4M45/60 Metal-Fab 60 Degree Adjustable Elbow - 4" Diameter

The 60 Degree Adjustable Elbow allows for up to 60 degree adjustments. 4" duct diameter.

Product Specs

More Information
Metal-Fab 4" B-Vent 4MPT Wall Thimble
Feature	Spec
SKU	4MPT
Weight (in lbs)	15
Brand/Manufacturer	Metal-Fab
UPC	na
Additional Information	Material Thickness: The inner wall is 0.012 inches thick, while the outer wall is 0.018 inches thick.
Additional Information	Material: Aluminum alloy for the inner wall and G90 galvanized steel for the outer wall.
Duct Diameter	4"
Width	4 Inches
Warranty	1 Year Limited
Resources	Manual Specification Sheet. You will need Adobe® Acrobat® Reader to view PDF documents.
Safety Information	PROPOSITION 65 WARNING This product and many products on our site may contain a chemical know to the state of California to cause cancer or birth defects or other reproductive harm. For more information about Proposition 65 please Click Here.
Reznor CC1 4" Vent Cap
Feature	Spec
SKU	111848
Weight (in lbs)	5
Brand/Manufacturer	Reznor
Duct Diameter	4"
Resources	Installation Manual You will need AdobeÂ® AcrobatÂ® Reader to view PDF documents.
Safety Information	PROPOSITION 65 WARNING This product and many products on our site may contain a chemical know to the state of California to cause cancer or birth defects or other reproductive harm. For more information about Proposition 65 please Click Here.
Metal-Fab 4" 4MDC Draft Hood Connector
Feature	Spec
SKU	4MDC
Weight (in lbs)	1
Brand/Manufacturer	Metal-Fab
UPC	na
Additional Information	Material Thickness: The inner wall is 0.012 inches thick, while the outer wall is 0.018 inches thick.
Additional Information	Material: Aluminum alloy for the inner wall and G90 galvanized steel for the outer wall.
Duct Diameter	4"
Width	4 Inches
Warranty	1 Year Limited
Resources	Install Instructions Specification Sheet. You will need Adobe® Acrobat® Reader to view PDF documents.
Safety Information	PROPOSITION 65 WARNING This product and many products on our site may contain a chemical know to the state of California to cause cancer or birth defects or other reproductive harm. For more information about Proposition 65 please Click Here.
4M24 Metal-Fab 2 ft Pipe Length
Feature	Spec
SKU	4M24
Weight (in lbs)	15
Brand/Manufacturer	Metal-Fab
UPC	na
Duct Diameter	4"
Height	24 Inches
Width	4 Inches
Safety Information	PROPOSITION 65 WARNING This product and many products on our site may contain a chemical know to the state of California to cause cancer or birth defects or other reproductive harm. For more information about Proposition 65 please Click Here.
4M12 Metal-Fab B-Vent Pipe - 12"
Feature	Spec
SKU	4M12
Weight (in lbs)	5
Brand/Manufacturer	Metal-Fab
UPC	na
Duct Diameter	4"
Height	12 Inches
Width	4 Inches
Safety Information	PROPOSITION 65 WARNING This product and many products on our site may contain a chemical know to the state of California to cause cancer or birth defects or other reproductive harm. For more information about Proposition 65 please Click Here.
4M45/60 Metal-Fab 60 Degree Adjustable Elbow - 4" Diameter
Feature	Spec
SKU	4M45/60
Weight (in lbs)	5
Brand/Manufacturer	Metal-Fab
UPC	na
Duct Diameter	4"
Width	4 Inches
Safety Information	PROPOSITION 65 WARNING This product and many products on our site may contain a chemical know to the state of California to cause cancer or birth defects or other reproductive harm. For more information about Proposition 65 please Click Here.

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Why Choose Reznor Unit Heaters?

Reznor unit heaters are engineered for powerful, energy-efficient heating in commercial, industrial, and residential spaces. With durable construction and advanced technology, these heaters deliver reliable warmth, even heat distribution, and flexible installation options—making them ideal for warehouses, garages, workshops, and more.