Eccotemp 4" Stainless Steel Vertical Vent Kit - 1779607493554_719

Eccotemp 4" Stainless Steel Vertical Vent Kit - 1779607493554_719

The 4" Single-walled, Stainless Steel Vertical Vent Kit is for vertical installations only.

You may need to purchase additional Eccotemp straight pipe. You may need to purchase additional Eccotemp straight pipe. You will need to determine how many additional feet you will need and determine if you need a condensation drain. Also remember there is a maximum vent run of 20 feet, subtracting 4 feet for every 90-degree elbow in the run.

Special gas vent kits are all made of AL-294C stainless steel and are category II/III and UL compliant. This vent kit is compatible with installation of the Eccotemp 45HI Series, 6.8GB Series, EL22i Series and SH22 Series whole home indoor tankless water heaters.

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Includes

• (1) 4” Rain Cap
• (1) 4” Top Support/Storm Collar
• (1) 4” Adjustable Roof Flashing
• (1) 4” Universal Adapter with Backflow Preventer
• (1) 4” Condensation Drain Pipe
  
  

What our Experts Think

• Dedicated vertical exhaust system component — The Eccotemp 4" Stainless Steel Vertical Vent Kit (1779607493554_719) is designed for indoor tankless water heater installations, providing safe upward exhaust routing through a roof penetration.
• Built for high-temperature gas venting — Made from AL-294C stainless steel, it’s engineered for Category II/III vent systems to handle corrosive exhaust gases and condensation from natural gas operation.
• Complete roof installation solution — Typically includes key components like rain cap, roof flashing, storm collar, adapter with backflow prevention, and condensation drain system for a fully sealed vertical setup.
• Designed for Eccotemp indoor units — Commonly compatible with Eccotemp whole-home indoor tankless series (such as EL22i / 45HI / SH22 variants), ensuring proper airflow and compliance with manufacturer venting specs.
• Condensation management included — Integrated drain design helps manage moisture buildup inside the vent line, improving safety and system longevity in long vertical runs.
• Code-compliant installation required — UL-rated, but must be installed according to gas venting codes; professional installation is strongly recommended due to gas exhaust safety requirements.
• Best for homeowners installing an indoor tankless water heater requiring roof venting, especially where side-wall (horizontal) exhaust is not possible.

                   
Q&A  

Q: What is this Eccotemp 4" vertical vent kit?
A: It is the Eccotemp V4VVK 4" stainless steel vertical vent kit, designed for safely venting compatible indoor tankless water heaters through a roof (vertical installation only).

Q: Which water heaters is it compatible with?
A: It is commonly used with Eccotemp whole-home indoor models like the 45HI Series, 6.8GB Series, EL22i Series, and SH22 Series, depending on installation setup. 

Q: What material is it made from?
A: It is built from AL29-4C stainless steel, a corrosion-resistant material designed for high-efficiency gas venting systems.

Q: Is it for horizontal installation?
A: No. This kit is strictly for vertical (roof) venting only and is not designed for wall or side vent exits.

Q: Does it require additional parts?
A: Yes. Most installations require extra straight vent pipe depending on roof height and run length, and sometimes additional elbows or drain components.

Q: Why is a condensation drain included?
A: It helps manage moisture buildup inside the vent system, improving efficiency, safety, and long-term durability of the water heater venting setup.

Q: Is professional installation required?
A: Yes. Proper venting is critical for safety, so licensed HVAC or gas technicians are strongly recommended for installation.

                 
Maintenance Tips    

• Inspect stainless steel vent pipes regularly for corrosion, cracks, or loose joints
• Ensure all gasketed connections are fully sealed to prevent exhaust leakage
• Check roof flashing and rain cap for blockages from debris, leaves, or ice
• Clean condensation drain pipe periodically to avoid water buildup and backflow
• Verify vent alignment and support brackets remain tight to prevent vibration loosening
• Keep vent termination area clear for proper airflow and safe exhaust discharge
• Do not modify or cut vent components beyond manufacturer installation guidelines
• Inspect for condensation leaks during seasonal temperature changes
• Ensure all joints remain properly supported, especially on vertical runs up to roof exit
• Check for rust or discoloration and replace damaged sections immediately
• Schedule annual inspection alongside water heater service for safe operation