Installation Warning

This water heater must be installed by a licensed and qualified technician. Improper installation or incorrect connections can result in severe safety hazards, including fire, explosion, or carbon monoxide poisoning. By purchasing this product, you agree to hire a trained professional to perform the installation and/or servicing of this unit. We are not responsible for any injuries, damages, or losses that occur as a result of improper installation, servicing, or maintenance.

The installer or service provider is fully responsible for ensuring that the installation complies with all applicable local, state, and national building codes and safety regulations. In many regions, a licensed contractor is required to install this unit. Failure to comply with these requirements may result in voided warranties, fines, or legal consequences. Always ensure that the technician adheres to safety protocols, including proper venting, gas line connections, and electrical work.

By proceeding with the purchase of this unit, you acknowledge and accept the responsibility for ensuring proper installation and compliance with relevant safety standards.

Product Summary

Rinnai Common Vent 6" In-Line Direct Vent Add-On Kit 790135

The Rinnai 790135 is a high-capacity commercial venting accessory designed to connect multiple high-efficiency tankless water heaters into a shared exhaust system. Sized for a 6-inch header, this in-line add-on kit allows installers to expand an existing common vent configuration by connecting one additional unit. Constructed from durable polypropylene (PPtl), it resists the acidic condensate produced by condensing appliances and ensures long-term reliability in commercial applications.

Key Features

• Commercial Vent Expansion – Allows connection of an additional water heater to an existing 6-inch common vent header
• In-Line Configuration – Designed for units installed side-by-side on a single wall
• Direct Vent (DV) – Supports both intake air and exhaust through the same vent system
• Snap-Fit Seal Technology – Self-locking connection design that eliminates the need for glue or solvents

Compatible Units

• Rinnai SENSEI™ Commercial Condensing Tankless Water Heaters
• Rinnai SE Series and SE+ Series Commercial Condensing Tankless Water Heaters

Specifications

Rinnai 6" Common Vent In-Line Direct Vent Add-On Kit 790135

Brand	Rinnai	SKU	790135
Product Type	Commercial Vent Add-On Kit	Vent Type	Direct Vent (DV)
Diameter	6 in (150 mm)	Configuration	In-Line
Material	Polypropylene (PPtl)	UPC	8713645219844

Shipping Policy

We use trusted freight carriers for safe and timely deliveries. For the most accurate tracking of your freight shipments, we recommend visiting the carrier's official website. Once your order is shipped, you'll receive details about the freight company responsible for your delivery and the tracking information to monitor your order's progress.  

Delivery times vary based on factors like shipping method, distance, and carrier schedules. We'll provide an estimated delivery window when you order. While we aim to meet these times, unexpected issues can sometimes cause delays. Contact us for updates.

Return & Refund Policy

We are dedicated to providing exceptional service and support. If you need to return an unused product purchased through our eBay store, we've made the process straightforward and transparent to ensure your peace of mind.

1. Purchase Source: Returns and refunds are available exclusively for items purchased directly from our eBay store.
2. Restocking Fee: A 15% restocking fee may be applicable to returned items, unless the product is defective.
3. Return Window: Initiate a return by contacting our customer service within 30 days from the shipment date.

Requirements for a Refund

To ensure a smooth return process and eligibility for a refund, please adhere to the following guidelines:

1. Resalable Condition: All returned items must be in a condition suitable for resale.
2. No Damages: Products must be free from any damages, scratches, or defects.
3. Uninstalled: Items must not have been installed or used.
4. Original Packaging: Return the item in its original manufacturer packaging, including all manuals, accessories, and packaging materials.
5. Free/Gift Items: Any free or gift items that were included with the purchase must also be returned.
6. Packaging Integrity: Ensure there are no writings or labels on the original manufacturer packaging.

Shipping Instructions for Returns

1. Traceable Shipping: Return packages must be sent via a traceable shipping method such as FedEx or UPS. Please avoid using USPS.
2. Freight Equipment: Freight-bound equipment must be returned via freight carriers. If you are unsure about the return method for your products, please contact us through the eBay mail system.
3. RMA Number: All items must be returned with their assigned Return Merchandise Authorization (RMA) number if applicable.

Our goal is to provide you with a seamless return experience. For any questions or assistance, our customer service team is here to help. Thank you for choosing us!