Rheem SP20897 2" PVC Concentric Vent Termination Kit (often referenced as SP20897-2)
A Rheem concentric vent termination kit used to route both combustion air intake and exhaust through a single roof or sidewall penetration for compatible Rheem tankless water heater venting applications where the specified kit is required.
Key Features
- Concentric vent termination kit for 2" PVC venting
- Product type: Termination Kit
- Material: PVC
- Rheem states the concentric venting is system matched to the water heater for optimal performance
- Rheem states it allows both the intake air and exhaust vent to pass through a standard roof or sidewall
- Includes a California Proposition 65 warning (as listed by Rheem)
Compatibility & Applications
- Listed under Rheem water heater venting parts; intended for applications where a 2" concentric termination is specified for the installation.
- Must only be used where the manufacturer specifies this exact part number: SP20897 (2" kit).
Installation & Operation Notes
- Installation should be performed by a qualified technician and follow the tankless water heater installation/service manual and any vent kit instructions included with the product.
- Confirm roof vs. sidewall termination requirements per the appliance manual and local codes.
- Q&A guidance notes there is no extended version of this kit; additional length would need to be added separately if required for snow/roof clearance.
Maintenance & Troubleshooting
- As a vent termination component, issues are typically related to fit, required accessories, or site conditions (roof clearance, weather exposure, or animal/insect screening).
- If you need protection from nesting/debris, Q&A guidance points to adding a concentric vent screen accessory sized for 2" venting.
- If the termination location is exposed to weather, Q&A guidance indicates a rain cap may be necessary depending on the application.
User Reviews & Q&A Summary
- Reviews (themes):
- Frequently described as a clean, nice-looking installation and a good value compared with big-box options.
- Common feedback notes easy installation, with some users mentioning they needed an additional fitting (e.g., a street elbow) to complete their specific connection.
- Multiple reviews highlight fast shipping and that the kit arrived as described.
- Q&A (themes):
- Roof termination: Confirmed it can terminate through a standard roof or sidewall; rain cap may be needed depending on the install.
- Snow/clearance: No extended version is offered; add lengths separately if you need additional height.
- Nesting prevention: Add a 2" concentric vent screen accessory if you want mesh screening.