Combi Boiler Installation in Calgary, AB
Calgary’s licensed combination boiler installer, transparent pricing, mechanical permit included, sized for Alberta winters.
What Is a Combi Boiler? Calgary Homeowners' Guide
A combi boiler — short for combination boiler — is a single wall-mounted unit that delivers both space heating and domestic hot water on demand, with no separate storage tank.
In Calgary, combi boilers are the fastest-growing boiler type: compact footprint, 95%+ AFUE efficiency, and no hot water tank eating up mechanical room space. They’re the go-to choice for condos, townhouses, and homes under 2,000 sq ft.
The critical Calgary factor
Calgary groundwater hits 3–4°C in winter — requiring a ~50°C temperature rise to reach usable hot water. That cuts manufacturer flow rates nearly in half. We size every install for real Calgary conditions.
How a Combi Boiler Works — Step by Step
AFUE Efficiency
Calgary Winter Groundwater
Required Temp Rise
Typical Lifespan
Combi Boilers We Install in Calgary
IBC DC & SFC Series
Canadian-built combi boiler with a stainless steel heat exchanger, engineered for Calgary’s hard water and cold groundwater.
- 95%+ AFUE
- Canadian Made
- Hard Water Rated
- Stainless Steel HX
Navien NCB Series
Built-in recirculation pump eliminates cold-water delay, with dual stainless steel heat exchangers built for Calgary’s hard water.
- 95%+ AFUE
- Built-In Recirc Pump
- Dual Stainless HX
NTI Trinity Series
Compact high-BTU combi boiler with a stainless steel heat exchanger and strong Alberta parts availability.
- 95%+ AFUE
- Compact High-BTU
- Stainless Steel HX
Viessmann Vitodens 100-W
Premium German-engineered combi boiler with an Inox-Radial heat exchanger delivering up to 98% AFUE efficiency.
- Up to 98% AFUE
- Inox-Radial HX
- Premium Efficiency
Combi Boiler Installation Cost in Calgary
No Calgary HVAC company publishes real combi boiler pricing. We do — because you shouldn’t need a sales call to know if a combination boiler installation fits your budget.
| Service | What's Included | Price Range (CAD) |
|---|---|---|
| New Combi Boiler Installation | Unit, old system removal & disposal, venting, gas piping, magnetic dirt filter, mechanical permit, commissioning | From $8,200 |
| Tank-to-Combi Conversion | All of the above + piping modifications to eliminate existing hot water tank | $8,500–$11,500 |
| Combi + Radiant In-Floor | Combi installation + zone valves + manifold integration for radiant system | Quote on assessment |
| Annual Maintenance | Heat exchanger descaling, combustion analysis, condensate inspection, safety check | $180–$360 |
| Combi Boiler Repair | Diagnostic + diverter valve, plate HX, ignition, control board — same-day dispatch | From $129 + parts |
Not sure which system fits?
For larger Calgary homes, a system boiler with indirect storage tank provides higher simultaneous hot water output. If your home already has a furnace and only needs hot water, a tankless water heater is the right and more affordable choice.
Combi Boiler vs. System Boiler vs. Tankless —
Which Is Right for Calgary?
Not sure which system fits your home? Here’s a side-by-side comparison so you can make an informed decision before picking up the phone.
|
Combi Boiler
|
System Boiler + Tank
|
Tankless Water Heater
|
|
|---|---|---|---|
| Function | Heating + hot water, one unit | Heating + high-volume hot water | Hot water only — no heating |
| Best For | Under 2,000 sq ft, 1–2 baths | Larger homes, 3+ baths | Homes with furnace, hot water only |
| Footprint | Wall-mounted, minimal | Boiler + separate tank space | Wall-mounted, minimal |
| Starting Price (Calgary) | From $8,200 | From $7,600 | From $5,600 |
| Simultaneous Fixtures | One at a time (cold groundwater) | Multiple simultaneously | One at a time |
| Radiant Floor Compatible |
Ideal low-temp use
|
|
|
| Mechanical Permit | Required — included in quote | Required — included in quote | Required — included in quote |
Our Calgary Combi Boiler Installation Process
Every Comfort Union combi boiler installation follows the same proven six-step process. No shortcuts, no surprises, no leaving your home without heat overnight.
In-Home Assessment & Heat-Loss Calculation
Asif visits and assesses your home against Calgary's -33°C design temperature. Written all-inclusive quote — no hidden fees added later.
Mechanical Permit — City of Calgary
We pull the required City of Calgary mechanical permit on your behalf. Included in your quote. Required by law for all combi boiler installations.
Installation Day
Old system removed and disposed. New combi boiler, venting, gas piping, and magnetic dirt filter installed. Standard installs complete in one day.
Commissioning & Combustion Analysis
Full system startup, combustion analysis, and safety verification. Flow rates confirmed at Calgary's actual groundwater temperature — not manufacturer spec conditions.
Warranty Registration & Handover
Manufacturer warranty registered in your name. Full walkthrough of system operation, thermostat settings, and annual maintenance requirements.
Annual Maintenance Support
Calgary's hard water (11–15 grains/gallon) requires annual descaling of the plate heat exchanger. One call books your yearly service — keeps your warranty valid.
Why Calgary Homeowners Choose Comfort Union for Combi Boiler Installation
Every Calgary HVAC company says they’re the best. Here’s what actually sets Comfort Union apart on combi boiler installation.
We publish what no Calgary competitor will. Combi boiler installation from $8,200, permit included, no surprise add-ons after the fact.
Every install starts with a heat-loss calculation at -33°C design temperature and real Calgary groundwater conditions — not manufacturer headline specs.
Every installation is fully permitted with the City of Calgary. No shortcuts that void your warranty or create problems when you sell your home.
Every installation is fully permitted with the City of Calgary. No shortcuts that void your warranty or create problems when you sell your home.
500+ Calgary installs. 10+ certified technicians. 4.9★ across 220+ Google reviews. We've been in your neighbourhood for 30 years.
All four Calgary quadrants: NW, NE, SW, SE. When your heat goes out at -30°C, we answer and dispatch — same day, every time.
Combi Boiler Installation Calgary — FAQs
The questions every Calgary homeowner asks before booking a boiler installation. Straight answers, no runaround.
How much does a combi boiler installation cost in Calgary?
From $7,890 installed. Includes the unit, old system removal, venting, gas piping, magnetic dirt filter, mechanical permit, and commissioning. Tank-to-combi conversions run $8,500–$11,500. 0% financing available.
What permit is required for combi boiler installation in Calgary?
A mechanical permit from the City of Calgary — required by law for all combi boiler installations. Comfort Union pulls it on your behalf, included in every installation quote. Work done without a permit voids manufacturer warranties and creates issues at home resale.
Can a combi boiler handle Calgary’s cold groundwater?
Yes — but only if properly sized for Calgary conditions. Calgary groundwater hits 3–4°C in winter, requiring a ~50°C temperature rise. That cuts published flow rates nearly in half. We size every installation for real Calgary conditions, not manufacturer spec-sheet numbers.
Is a combi boiler right for a larger Calgary home?
Combi boilers suit homes under 2,000 sq ft with 1–2 bathrooms. For 3+ bathrooms or high simultaneous demand, a system boiler with indirect tank is the better fit — it delivers higher simultaneous hot water output.
Can a combi boiler power radiant in-floor heating in Calgary?
Yes — radiant systems run at 30–45°C water temperatures, exactly where condensing combi boilers hit peak efficiency. An excellent space-saving combination for smaller Calgary homes.
How often does a combi boiler need maintenance in Calgary?
Annually. Calgary’s hard water at 11–15 grains/gallon makes yearly descaling of the plate heat exchanger essential. Skipping it reduces efficiency and voids most manufacturer warranties. Our service includes descaling, combustion analysis, condensate inspection, and a full safety check.
What’s the difference between a combi boiler and a tankless water heater?
A tankless provides hot water only — no space heating. A combi provides both. If your home has a furnace and only needs hot water, a tankless water heater is the right and more affordable choice. Need hydronic heating plus hot water? Go combi.
How long does a combi boiler installation take in Calgary?
One day for a standard replacement. Tank-to-combi conversions take 1–1.5 days. We never leave your home without heat overnight.
Real Reviews from Real Calgary Homes
Thank you Comfort Union for Installing IBC combination boiler with two IBC Air Handlers/Fan coils.
They were very professional. Highly recommended for all your HVAC and plumbing needs.
We recently had a new IBC combination boiler installed after losing hot water for a few days. The team understood the urgency and moved quickly to get the job done. Mohammad came out and worked long hours to complete the installation, and his professionalism and dedication really stood out. The entire team handled everything efficiently—from installation to inspection—and made sure the new unit was working perfectly. We’re very happy with the result and would highly recommend their services!
We are absolutely thrilled with the service we received from Comfort Union. When our boiler went we were out of hot water as well as heat in our basement because of the in-floor heating. Mohammed came the same day I called and I could tell immediately that he really knew what he was talking about!! He explained clearly what was wrong and what needed to be replaced. And he and Abdul came the next day to do the install and stayed late to get it done! We’re so happy with the work they both did. We highly recommend Comfort Union, Mohammed and Abdul!
Combi Boiler Installation Across All of Calgary
Combi Boiler Install NW Calgary
Tuscany, Royal Oak, Scenic Acres, Hawkwood, Edgemont, Varsity, Dalhousie, Montgomery, Bowness and all NW communities.
Combi Boiler Install NE Calgary
Skyview Ranch, Saddle Ridge, Martindale, Taradale, Temple, Pineridge, Rundle, Marlborough and all NE communities.
Comni Boiler Install SW Calgary
Signal Hill, West Springs, Aspen Woods, Cougar Ridge, Springbank Hill, Pump Hill, Lakeview, Glamorgan and all SW communities.
Combi Boiler Install SE Calgary
Auburn Bay, Mahogany, Cranston, McKenzie Towne, Copperfield, New Brighton, Douglasdale, Riverbend and all SE communities.
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