The 4Most Energy Edge
Installing a Rinnai Solo boiler requires a high level of technical expertise to ensure the primary and secondary loops are balanced for peak efficiency.
- Designed for Indirect Tanks: This kit features dedicated 1" supply and return ports, making it the perfect partner for homes using an indirect tank for high-volume domestic hot water.
- Optimized for Multi-Zone Comfort: Perfect for Ontario homes that mix heating applications, such as cast iron radiators on the main floor and in-floor heating in the basement.
- Red-Seal Professionalism: 4Most Energy ensures every connection is TSSA-compliant, maintaining your full Rinnai factory warranty and ensuring safety.
Rinnai I-Series Boiler Solo Primary-Secondary Kit – Specification Sheet (PDF)
Warranty Highlight
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.
Features & Benefits
- Hydraulic Separation: The integrated closely spaced tee acts as a hydraulic separator between the primary boiler loop and the secondary central heating loop. This is mandatory for systems with multiple recirculation pumps to prevent flow interference.
- Dedicated Indirect Tank Ports: Includes specialized 1" CTS copper connections specifically for an indirect tank loop, ensuring prioritized hot water delivery without field-fabricating a manifold.
- Advanced Isolation & Maintenance: Features 1" CTS isolation flanges and a 3/4" GHT quarter-turn boiler drain, allowing for easy system flushing and service without draining the entire house.
- Factory-Built Reliability: Pre-assembled Type L Copper construction eliminates the risk of field-fabricated leaks and ensures the precise "closely spaced" geometry required for effective separation.
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 |
Installation & Service Area
Our specialized Solo installation process includes:
- Loop Audit: We calculate the flow requirements for your radiators, in-floor loops, and indirect tank to ensure the separator is sized correctly.
- Precision Mounting: The 807000213 kit is installed to provide a clean, professional "mechanical room" look that is easy to service.
- Safety Integration: Proper installation of the Pressure Relief Valve (PRV) and system gauges.
Frequently Asked Questions Rinnai I-Series Solo
Is the Primary-Secondary Heating Kit included with the Rinnai Solo boiler?
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.
When is this kit required for a hydronic system?
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.
Why choose this kit over a custom-built manifold?
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.
What is the difference between this kit and a Low Loss Header?
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.
Service Area
Greater Toronto Area (GTA) and surrounding regions
Toronto, Markham, Richmond Hill, Vaughan, Aurora, Newmarket, Scarborough, Brampton, and Mississauga.
Extended Service Area: Stouffville, Oshawa, Barrie, Orangeville, Hamilton, St. Catharines, Guelph, Kitchener.
