Rinnai Primary Secondary Heating Kit for M-Series Boilers – Hydraulic Separator
- Authorized Online Dealer
- Free Shipping (exclusions may apply)
- We Beat The Lowest Price
- Fast 4–7 Day Delivery
- Manufacturer Warranty Included
- Questions? Call Our Experts: +1 (800) 484-0224
Rinnai Primary Secondary Heating Kit for M-Series Boilers – Hydraulic Separator is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
Price Match Guarantee
Price Match Guarantee
We work very hard to ensure that we offer the absolute best prices online. If you find another online store that offers a lower price than us, let us know and we beat the price hands down. We want you to feel confident that you are getting the absolute best price for the product you are ordering.
Our 100% Price Match Guarantee has the following restrictions:
Promotions such as rebates and buy one, get one free offers are not eligible
The website can not be a discounter or auction website (ie; eBay, etc..)
The competitor must be an Authorized Retailer of the item you have purchased
The Price Match Guarantee includes will be calculated based on item price, sales tax, shipping charges
Price Matches Do Not Apply For Exchange Orders, or replacements
Please Note: Some Exclusions May Apply
Delivery and Shipping
Delivery and Shipping
Your order processing time is 1 to 2 days. Please note that the cut-off time for order placement is 6 p.m. Orders received after this time will be processed on the following business day.
Your order will arrive within 4 to 7 days on average (free shipping over $200). Shipping for orders under $200 incurs a flat fee of $15. We currently offer shipping only within the continental United States (island deliveries may incur additional costs); international shipping is not available.
Mostly all of our orders are shipped via one of our third-party freight carriers (18-wheeler). If your order has an item that is shipped on a freight carrier, you will be contacted to schedule a curbside delivery time. Please make sure to put the correct phone number at checkout.
Upon placing your order, you will receive a confirmation e-mail. This message will confirm your order has been received by our system, and your credit card was approved for purchase. We will not charge your card until the item has shipped unless it's back ordered and we need to hold an item for you.
As soon as your order is received on our end, we process it!
• Authorized Online Dealer
• Free Shipping + No Sales Tax (exclusions may apply)
• We Beat The Lowest Price
• Fast 4-7 Day Delivery
• Manufacturer Warranty Included
• Questions? Call Our Experts: +1 (800) 484-0224
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Description
Description
Upgrade your hydronic heating system with the Rinnai Primary Secondary Heating Kit, engineered specifically for Rinnai M-Series Boilers. Designed to function as a high-performance hydraulic separator, this kit ensures stable water flow, eliminates pump curve matching challenges, and enhances system efficiency across multiple heating zones and temperature requirements.
Whether used in residential or light-commercial installations, the closely spaced tee design optimizes circulation between the boiler loop and the central heating loop—delivering quieter, smoother, and more reliable operation. If you want a cleaner installation, reduced flow resistance, and improved heating balance, this kit is the ideal solution.
Key Features:
- Hydraulic Separator Design – Maintains hydraulic balance between boiler and heating loops.
- Improves System Efficiency – Reduces flow issues and prevents pump interference.
- Ideal for Multi-Zone Systems – Works perfectly with multi-temperature and multi-circuit setups.
- No Pump Curve Matching Required – Simplifies planning and installation.
- Enhances Boiler Performance – Designed specifically for Rinnai M-Series Boilers.
- Durable Construction – Built for long-lasting and reliable heating performance.
-
Professional-Grade Compatibility – Suitable for both residential and light commercial heating systems.
What’s Included
- 1 × Rinnai Primary Secondary Heating Kit
- All required fittings and components for installation
- Manufacturer documentation/instructions
Specifications
| Specification | Details |
|---|---|
| Part Number | 803000023 |
| Compatibility | Rinnai M-Series Boilers |
| Function | Hydraulic separator / closely spaced tee for boiler and heating loop separation |
| Application | Primary-secondary piping systems; multi-zone and multi-temperature systems |
| Material | Manufacturer-graded durable metal construction |
| Installation | Indoor hydronic heating systems |
| Dimensions | Manufacturer does not provide published dimensions; designed specifically for M-Series configuration |
Care & Maintenance Instructions
- Inspect system annually to ensure the separator and all fittings remain debris-free.
- Check for leaks or pressure changes as part of routine boiler maintenance.
- Ensure connected piping is flushed and clean for optimal flow.
- Follow Rinnai’s recommended boiler maintenance schedule for best long-term performance.
- Have all service and inspections performed by a certified heating technician.
