With over 140 years of history in North America, Weil‑McLain specializes in hydronic heating systems for both small and large homes. Many Calgary residents still rely on older boilers from the brand, creating strong demand for repairs, maintenance, and legacy boiler replacement. Weil‑McLain boilers are valued for robust heat exchangers, quiet operation, and flexible sizing, making them suitable for single-family homes, multi-zone systems, and combination heating + domestic hot water applications.
Professional servicing ensures older units continue operating efficiently, while new installations provide the latest high-efficiency condensing technology for long-term savings.
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Weil‑McLain Models Available for Calgary Homes
Calgary homeowners have a range of Weil‑McLain boilers to choose from, whether they are looking to replace an older unit, upgrade to a high-efficiency model, or repair an existing system.
Whether your priority is energy savings, reducing repair frequency, or extending the life of an older boiler, understanding the features and suitability of each model helps ensure your home stays warm and efficient throughout Calgary’s long, cold winters.
ECO Tec® Premium Residential Gas Boiler
A high-efficiency condensing boiler suitable for heat-only or combi applications, offering up to 95% AFUE.
Key features:
- Stainless-steel fire tube heat exchanger
- Intuitive touchscreen controls
- Multiple heat-only or combi sizes
Best For
Calgary homeowners seeking top-tier energy efficiency and combined space + domestic hot water in one unit.
Simplicity™ High-Efficiency Combi Boiler
Integrates space heating and on-demand domestic hot water in a compact, quiet package.
Key features:
- 95% AFUE
- Convertible between heat-only and combi
- Variable-speed blower for quiet operation
Best For
Homes needing efficient heating and hot water from a single unit, especially in tight spaces.
Evergreen™ High-Efficiency Condensing Boiler
A versatile condensing boiler designed for multi-zone hydronic systems.
Key features:
- Stainless-steel heat exchanger
- ENERGY STAR® “Most Efficient” designation
- Flexible output sizes
Best For
Larger Calgary homes requiring high efficiency and zone control.
Ultra® Series 4 Condensing Boiler
Mid-range condensing boiler with long-lasting Ultra Armor heat exchanger.
Key features:
- Nanotechnology protection against buildup
- Quiet operation with advanced controls
- Multiple zone and setup options
Best For
Homes seeking durable, efficient, and flexible mid-range heating solutions.
AquaBalance® Series 2 Combi Boiler
Combines high-efficiency space heating and on-demand hot water in a compact design.
Key features:
- Stainless steel/titanium-infused heat exchanger
- 95% AFUE
- User-friendly controls
Best For
Calgary homes that want both heating and hot water without a separate tank.
GV90+® High-Efficiency Cast Iron Boiler
Pairs a durable cast iron primary heat exchanger with a stainless steel secondary condensing section.
Key features:
- Quiet operation
- Multiple size options
- Longevity and efficiency
Best For
Homeowners valuing traditional boiler longevity with modern efficiency.
Why Weil‑McLain Boilers Are Great for Calgary Homes
Calgary winters require reliable, efficient heating, and Weil‑McLain boilers deliver just that. These systems feature high AFUE ratings of up to 95%, durable construction for long-term performance, quiet blowers, and advanced digital controls. With flexible sizing available across both heat-only and combi models, homeowners can choose a boiler that fits their specific needs. Older Weil‑McLain boilers can also be repaired or upgraded to extend their lifespan and maintain efficiency.
For additional guidance on selecting the right system, see our Boiler Brands in Calgary guide.
Weil‑McLain Boiler Installation and Repair Costs in Calgary (2025)
Understanding the cost of Weil‑McLain boilers in Calgary helps homeowners plan for both installation and ongoing maintenance. Prices vary by model, home size, and installation complexity, while repairs for older units ensure long-term efficiency and comfort.
Item | Estimated Cost (CAD) |
Simplicity™ Combi Boiler (unit only) | 5,500–8,000 |
ECO Tec® Boiler (unit only) | 5,500–8,500 |
Evergreen™ Boiler (unit only) | 6,000–9,000 |
Ultra® Series 4 Boiler (unit only) | 4,000–7,000 |
AquaBalance® Combi Boiler (unit only) | 5,000–7,500 |
GV90+® Boiler (unit only) | 3,800–6,000 |
Labour & Installation | 3,000–4,500 |
Optional Upgrades (venting/piping) | 300–1,200 |
Total Installed Cost | ~8,000–14,000+ |
Costs vary depending on model, home size, installation complexity, and whether existing systems require repairs or upgrades. For older boilers, repair and maintenance may be more cost-effective than replacement.
Considerations Before Installing or Repairing a Weil‑McLain Boiler in Calgary
Proper Sizing
Ensuring your Weil‑McLain boiler is properly sized for your home is essential to avoid short cycling and maintain efficient operation. Accurate heat load calculations help the system run smoothly and reduce energy waste.
Combi vs Heat-Only
Decide whether your home requires a combi boiler for on-demand domestic hot water or a heat-only system dedicated to space heating. Choosing the right type ensures your boiler meets both comfort and hot water needs.
Certified Installation
Hiring a certified installer like Comfort Union guarantees that venting, gas connections, and control systems are code-compliant and properly configured. Professional installation maximizes efficiency, safety, and the lifespan of your boiler.
For guidance on replacing an old boiler, see our Boiler Replacement Calgary guide.
Maintenance, Repairs, and Long-Term Costs
Annual maintenance keeps Weil‑McLain boilers running efficiently. Inspections include combustion checks, venting, and heat exchanger evaluation. Professional repair services from Comfort Union can extend older boiler life and prevent costly issues. For broader heating system repairs, see our furnace repair services in Calgary.
Installation Process: Step-by-Step
- Assessment & Heat Load Calculation: Choose the correct Weil‑McLain model.
- Venting & Gas Evaluation: Plan venting and gas line requirements.
- Installation: Connect boiler to hydronic loops and control systems.
- System Start-Up & Safety Checks: Test proper function.
- Owner Walkthrough & Maintenance Schedule: Review system operation and future servicing needs.
Is Weil‑McLain Worth It for Calgary Homes?
Weil‑McLain boilers provide reliable, efficient, and long-lasting heating, perfect for Calgary’s harsh winters. Combi models like Simplicity™ and AquaBalance® offer convenience, while cast iron GV90+® units ensure longevity. Proper installation and annual maintenance from Comfort Union guarantee consistent comfort and energy savings.
Frequently Asked Questions (FAQ)
How much does a Weil‑McLain boiler cost in Calgary?
Installed costs range $8,000–$14,000+, depending on model and installation complexity.
Are Weil‑McLain boilers efficient?
Yes. Many models reach up to 95% AFUE, lowering energy costs and qualifying for rebates.
Do Weil‑McLain boilers provide hot water?
Yes, combi models like Simplicity™ and AquaBalance® provide on-demand domestic hot water.
How long do Weil‑McLain boilers last?
With proper maintenance, 15–20+ years is common.
Can older Weil‑McLain boilers be repaired?
Yes. Comfort Union provides repair and service for legacy models, extending operational life and maintaining efficiency.
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