A Rinnai 109000616 Gasket preserves a tight seal at key mating surfaces to reduce leakage and sustain reliable operation.
The gasket seals the connection points around the secondary heat exchanger to maintain proper water and combustion-related separation within the system. Its material and fit are critical because they must withstand heat, moisture and pressure changes to preserve efficiency and prevent leakage in the heating and cooling equipment.
The gasket may need replacement if the water heater shows reduced efficiency, inconsistent heating performance or signs of internal leaking that could affect normal operation. Physical signs can include cracking, brittleness, compression wear or visible deterioration, while environmental signs may include moisture buildup, water seepage or staining around the secondary heat exchanger area.
Yes! We provide same-day shipping on in-stock real OEM HVAC parts Monday—Friday until 9 PM ET and on Saturday until 4 PM ET for online air orders. When you want to solve equipment issues in a timely manner, we're here to help. You can check the delivery status of your real OEM heating and cooling parts by heading to our Track My Order page and putting in your order number or purchase order (PO) number and zip code. If you want to stay updated on your order's delivery status, you can do so at any time. Absolutely! Customer support for real OEM heating and cooling replacement parts is available 8 AM to 9 PM ET Monday—Friday through chat, email, phone and more. Check our Contact Us page to see our contact details. We allow you to return most new, unopened real OEM HVAC parts within 90 days of delivery, so visit our Returns page for more details. For orders that came from a third-party seller, their policy applies.Read More FAQs
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