Many homeowners searching for Rinnai boilers in Calgary are not shopping for new systems, they’re dealing with an older boiler that’s acting up, short-cycling, losing pressure, or failing to heat properly during winter.
Rinnai is a long-established boiler manufacturer, and Calgary has a large number of aging Rinnai systems still in operation, especially in homes built or renovated 10–25 years ago. Comfort Union provides Rinnai boiler repair, maintenance, and replacement, helping homeowners decide whether repair makes sense or if upgrading is the smarter long-term option.
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Rinnai Boiler Models We Commonly Repair in Calgary Homes
Before discussing new models, it’s important to understand the older and discontinued Rinnai boilers we regularly service. Many of these units are still running, and often worth repairing, depending on condition.
Legacy Rinnai Boilers Still in Service
Comfort Union commonly services:
- Early Rinnai I-Series condensing boilers
- Older E-Series heat-only boilers
- First-generation Q-Series hydronic boilers
- High-hour M-Series boilers in large homes and multi-family properties
These systems often experience issues such as ignition faults, sensor failures, scale buildup, pump wear, or venting problems, all repairable in many cases.
Typical Rinnai boiler repair costs in Calgary:
- Minor repairs & diagnostics: $200–$450
- Component replacement (sensors, valves, pumps): $450–$900
- Major repairs (control boards, heat exchanger concerns): $900–$1,500+
If repairs start approaching replacement cost, we help homeowners evaluate next steps honestly.
When It Makes Sense to Replace an Older Rinnai Boiler
Replacement is usually recommended when:
- The boiler is 15–20+ years old
- Multiple repairs are occurring within short intervals
- Efficiency losses are driving up gas bills
- Replacement parts are becoming limited or costly
At that point, upgrading to a modern Rinnai condensing boiler often delivers better reliability, quieter operation, and lower operating costs, especially for Calgary winters.
For guidance, homeowners can review our Boiler Replacement Calgary resource.
Current Rinnai Boilers Available for Calgary Homes
Once replacement is justified, Rinnai’s newer condensing boilers offer compact design, strong cold-weather performance, and improved efficiency.
I-Series Condensing Boilers (Combi & Heat-Only)
Common models: i060CN, i090CN, i120CN, i120SN
Key features:
Stainless steel condensing heat exchanger, modulating burner, wall-mounted design, cold-climate reliability.
Ideal For
Condos, small to mid-size homes, and homeowners replacing older Rinnai units with a modern footprint.
E-Series Condensing Boilers
Common models: E50CRN, E60SRN, E75CRN, E110CRN
Key features:
ENERGY STAR® efficiency, compact sizing, low NOx emissions, consistent output in extreme cold.
Ideal For
Homes needing heat-only hydronic systems with high efficiency and simple zoning.
M-Series High-Output Boilers
Common models: M120CN, M160SN
Key features:
High BTU capacity, robust stainless heat exchanger, strong performance for long run times.
Ideal For
Large Calgary homes, estate properties, and high-demand hydronic systems.
Rinnai Boiler Installation Cost in Calgary (2025 Estimates)
Item | Estimated Cost (CAD) |
I-Series Boiler (unit only) | $5,500–$7,500 |
E-Series Heat-Only Boiler (unit only) | $5,500–$8,000 |
Q-Series Heat-Only Boiler (unit only) | $4,000–$5,500 |
M-Series High-Output Boiler (unit only) | $7,000–$9,500 |
Labour & Installation | $3,000–$4,500 |
Optional Upgrades (venting, piping, zoning) | $300–$1,200 |
Total Installed Cost | $8,000–$13,500+ |
Actual pricing depends on venting changes, zoning complexity, system age, and retrofit requirements.
Rinnai Boiler Maintenance & Long-Term Ownership Costs
Routine maintenance is critical, especially for older Rinnai boilers still in service across Calgary. Annual service typically includes combustion testing, heat exchanger inspection, venting and condensate checks, sensor and safety verification, and system pressure and pump inspection. In Calgary, annual boiler maintenance usually costs between $180–$350, and this preventative care is a major reason well-maintained Rinnai boilers often last 15–20+ years, even in Alberta’s harsh climate. Professional servicing and repairs can be scheduled through Combi Boiler Repair Calgary to ensure continued safe and efficient operation
Is Rinnai a Good Choice for Calgary Homes?
Yes, especially for homeowners already operating an older Rinnai system.
Whether the goal is extending the life of an existing boiler, reducing repair frequency, improving winter efficiency, or planning a long-term replacement, Rinnai boilers offer dependable solutions for Calgary homeowners facing long heating seasons and demanding cold-weather conditions.
Rinnai boilers offer strong cold-weather reliability, compact installation, and solid parts availability across Calgary.
Frequently Asked Questions (FAQ)
How much does it cost to repair a Rinnai boiler in Calgary?
Most repairs range from $200–$900, depending on the issue and parts required.
Should I repair or replace my old Rinnai boiler?
If repairs exceed 30–40% of replacement cost or occur frequently, replacement is usually the smarter option.
Are parts still available for older Rinnai boilers?
Yes, many legacy parts are still available, though costs rise as models age
How long do Rinnai boilers last in Calgary?
With proper maintenance, 15–20+ years is common, even in harsh winters.
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