RINNAI 108000086 Supply Air Filter

( Brand: Rinnai ), ( Manufacturer Part Number: 108000086 ), ( Type: Air Supply Filter )

Review RINNAI Air Supply Filter

The Rinnai 108000086 Air Supply Filter is an essential component for maintaining the optimal performance of your Rinnai tankless water heater. This replacement filter is specifically designed to fit Rinnai models RL, RL94iN, RL94iN , and RL94iNX.

Measuring 10 inches in length, 8 inches in width, and 6 inches in height, this filter is compact yet effective in removing impurities from the air supply before it enters the heater. The filter housing is made of durable, corrosion-resistant materials to ensure a long service life, while the filter media itself is made of pleated, high-density polyester that can trap even the smallest particles, including dust, lint, and other airborne contaminants.

The Rinnai 108000086 Air Supply Filter is easy to install and replace. Simply remove the old filter, place the new one in the housing, and secure it in place with the provided clips. It's recommended to check and replace the filter every 6-12 months, depending on the specific operating conditions of your water heater.

Regular filter maintenance is crucial for ensuring the longevity and efficiency of your Rinnai tankless water heater. A clean filter helps prevent the build-up of dirt and debris, which can reduce airflow and cause the heater to work harder than necessary. By investing in a high-quality, genuine Rinnai replacement filter like the 108000086, you can enjoy peace of mind knowing that your water heater is operating at its best and providing you with an endless supply of hot water when you need it most.

Rinnai 108000086 Air Supply Filter: A Comprehensive Analysis

The Rinnai 108000086 air supply filter is an essential component for maintaining the efficiency and longevity of Rinnai tankless water heaters. In this analysis, we will discuss the pros and cons of purchasing this particular filter.

1. Enhanced filtration: The Rinnai 108000086 air supply filter is designed to remove impurities, including sediments and rust, from the incoming air before it enters the heating system. This ensures a cleaner burn and improved combustion efficiency.

2. Extended heater life: By reducing the amount of contaminants that can damage the heating components, the air supply filter helps increase the overall life of the Rinnai tankless water heater.

3. Improved energy efficiency: Filtered air results in better combustion and, consequently, increased energy efficiency. This translates to lower energy bills and a reduced carbon footprint.

1. Periodic replacement: The Rinnai 108000086 air supply filter needs to be replaced every 12-18 months, depending on the water quality and usage patterns. Regular filter replacements can add up to additional costs over time.

2. Availability: This specific filter model might not be readily available at all home improvement stores or online retailers. Users may need to order it directly from Rinnai or through authorized dealers, which may take longer than expected.

The Rinnai 108000086 air supply filter plays a crucial role in the proper functioning and longevity of Rinnai tankless water heaters. Its benefits, such as enhanced filtration, extended heater life, and improved energy efficiency, outweigh the cons, which include periodic replacement and potential availability issues. Homeowners and property managers who rely on Rinnai water heaters for their hot water needs should consider the importance of this filter in their maintenance plan.

We recommend investing in the Rinnai 108000086 air supply filter to ensure the optimal performance and longevity of your Rinnai tankless water heater. Regularly check the filter's condition and replace it as needed to maintain the efficiency and effectiveness of your heating system. Additionally, consider stocking up on filters to minimize the inconvenience of potential availability issues.

Details:

Compatibility can vary by model revision, production year, and part number. Part Details. May be compatible with other Rinnai thankless water heater model's. Part Number: 108000086.

May show minor signs of wear such as surface marks, discoloration, or residue from normal operation. Model Compatibility Buyer to Verify. No cracks or major damage were observed unless clearly shown in the photos. Installation should be performed by a qualified technician.

Do not rely on model alone confirm fitment using the part number and photos. This listing is for a used, genuine part removed from Rinnai RU180iN thankless water heater. Part Name: Air Supply Filter. Examine all photos carefully to determine the exact condition and confirm this is correct part for your application.

Verify the part number and compatibility with your specific Rinnai model before purchasing. The part was taken from a working unit and shows normal cosmetic wear consistent with prior use.

part #: 108000086 prices

• $8.99-$153.00

specifications wateheat:

• brand: Rinnai
• mpn: 108000086
• type: Air Supply Filter

seller wateheat:

• rating: 100.0%
• city: Lawton, Oklahoma
• # reviews: 1396

offer wateheat:

• availability: In Stock
• options: Ship-to-home
• sold: 0
• best offers: True
• quantity: 1
• started: January 17, 2026

general wateheat:

• condition: Used
• Heating, Cooling Air > Water Heaters > Water Heater Parts

returns wateheat:

• paid by: Buyer
• policy: Returns Accepted
• method: Money back
• time: 14 Days

shipping wateheat:

• transit: 6-12 Days
• cost: $0.00
• type: Calculated
• class: Standard
• service: USPS Ground Advantage
• carrier: USPS

payments wateheat:

• wallet: Apple-pay
• credit card: Diners-club
• other

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