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Maximize the efficiency of your Rinnai I-Series Solo (Heat Only) Boiler with the factory-engineered Primary-Secondary Heating Kit (Part #807000213). This kit is specifically designed to provide hydraulic separation between the boiler’s primary loop and your home’s secondary heating loops. It is a critical component for Ontario homes with complex hydronic setups, such as multi-zone in-floor heating, radiators, and indirect domestic hot water tanks.
Installing a Rinnai Solo boiler requires a high level of technical expertise to ensure the primary and secondary loops are balanced for peak efficiency.
Rinnai I-Series Boiler Solo Primary-Secondary Kit – Specification Sheet (PDF)
5-Year Limited Manufacturer Warranty on parts. 4Most Energy stands behind every installation with our 1-Year Labour Guarantee, ensuring your high-efficiency system delivers peak performance from the very first day.
While both provide hydraulic separation, they are used in different scenarios:
| Feature | Solo Heating Kit (807000213) | Low Loss Header (LLH) |
| Best For | Typical Ontario residential homes | Large luxury homes / Commercial |
| System Complexity | Standard (Basement in-floor, rads, air handlers) | Very high (6+ zones, massive flow rates) |
| Indirect Tank Setup | Dedicated ports included | Requires custom manifolding |
| Installation | Ready-to-install, compact (19.49") | Larger footprint, custom piping required |
| Cost | Cost-effective residential solution | Premium specialized component |
The 4Most Recommendation: For the vast majority of Ontario hydronic homes, this ready-to-install kit is the most useful and common solution. It handles typical basement in-floor, cast iron or baseboard radiators, and air handlers perfectly without the complexity of a commercial header.
| Specification | Details (Model 807000213) |
| Applicable Models | i060S, i090S, i120S, i150S |
| Material | Type L Copper |
| Weight | 7.0 lb (3.2 kg) |
| Height (Total) | 19.49 in. |
| Width (Overall) | 20.05 in. |
| Boiler Connection | 1 in. NPT Dielectric Union (Qty 2) |
| Indirect Tank Ports | 1 in. CTS Copper Supply & Return |
| Manifold Connection | 1-1/4 in. CTS Copper |
| Isolation | (2) 1 in. CTS Isolation Flanges |
| Drain Valve | 3/4 in. GHT Quarter Turn |
Our specialized Solo installation process includes:
No, this kit is an optional accessory and must be purchased separately. While the boiler includes the Pressure Relief Valve (PRV), the plumbing kit is a factory-built solution recommended for any multi-zone or multi-pump installation.
This kit is necessary when you have a multi-zone system or multiple recirculation pumps in your hydronic setup (such as a mix of radiators and in-floor heating). Its job is to separate the primary boiler loop from the secondary loop, ensuring that opening or closing various zones does not fluctuate the flow through the boiler heat exchanger.
This kit is factory-engineered for the I-Series Solo. It guarantees the correct spacing for the "closely spaced tees," which is difficult to get perfect in the field. It also includes the specific ports for an indirect tank, saving hours of labour and reducing potential leak points.
Both separate the primary and secondary loops. A Low Loss Header is typically used for massive, high-flow commercial systems. This Primary-Secondary Kit is designed specifically for typical Ontario residential applications like in-floor heating and radiators. It is much more common, easier to install, and perfectly suited for home use.
Toronto, Markham, Richmond Hill, Vaughan, Aurora, Newmarket, Scarborough, Brampton, and Mississauga.
Extended Service Area: Stouffville, Oshawa, Barrie, Orangeville, Hamilton, St. Catharines, Guelph, Kitchener.
