Calgary Furnaces — Install, Replace, Repair & Service

It depends on the efficiency tier, the output your home actually needs, and what's already in your mechanical room — and we won't quote it over the phone, because a number given sight-unseen is a number that changes on install day.

The main variables: the unit itself (entry single-stage 92% AFUE through premium modulating 97-98%), whether it's a straight swap or the ductwork needs rework, whether the venting or gas line has to change, and whether any electrical work is needed to support a variable-speed blower.

We come out, run the heat-loss calc, and give you the model, the AFUE rating, the full scope, and the all-in price in writing at no charge. Monthly financing is available to spread the cost.

Depends on your insulation, ductwork, and whether you also need cooling.

A modern high-efficiency furnace is the simplest and lowest-cost-upfront path, especially for older homes with marginal insulation. A hybrid setup (furnace + cold-climate heat pump) cuts your gas bill 60-70% across the year while still using the furnace for the worst cold-snap weeks.

Our heat pump vs furnace in Calgary guide walks through the math with real Calgary numbers. If a hybrid sounds right, we install those — see cold-climate heat pump installation.

Consider replacement when your furnace is over 15-20 years old (typical lifespan), repair costs exceed 40% of replacement, the unit fails repeatedly within 24 months, or your heat exchanger has cracked (safety issue — never repair).

Under 15 years old with a single failed component — a bad igniter, inducer motor, or control board? Usually worth the repair.

We give honest replace-or-repair assessments — if your 12-year-old furnace just needs an igniter, we'll do the repair and tell you so.

Annually, ideally booked September through October before the heavy heating season starts. The annual service includes combustion analysis, heat-exchanger crack inspection (safety check that matters most), blower cleaning, filter change, and a full safety system test including carbon monoxide.

Annual maintenance is also required to maintain warranty coverage on most modern furnaces — skip it and you may void parts coverage if you ever need a claim.

We're an AirEase Pro Team dealer and install AirEase most often — the 12-year parts-and-labour warranty is the strongest in the market, and the A96 two-stage and A97 modulating units perform reliably through Alberta winters.

We also install and service Carrier, Lennox, Rheem, Daikin, and most other brands. Avoid the no-name builder-grade units from big-box retailers — the warranties are weak and part availability becomes a problem within 5-7 years.

Straight replacements typically complete in 6-10 hours (one day). More complex jobs requiring ductwork modifications, chimney lining, or gas line upgrades may extend into a second day. Winter installs require freeze-protection precautions and may take longer. We confirm timeline at the quote stage.

Yes. Calgary requires a residential gas permit and inspection for furnace installations. FlameTech handles all permit applications, schedules inspections, and registers manufacturer warranties as part of the install — no homeowner paperwork chasing.

In nearly every case. Condensing units (90%+ AFUE) extract extra heat from exhaust gases that older 70-80% AFUE units lose up the chimney.

In Calgary's seven-month heating season, that efficiency gap is working in your favour for most of the year. The gas savings pay back the install premium well inside the furnace's service life, and the unit keeps running long after it's paid for itself.

The only cases where standard efficiency might make sense: temporary install (selling within 2-3 years) or a mechanical room where condensate drainage genuinely can't be routed.