A furnace that suits your house
Sized on what your house actually loses, not on whatever came out. Oversize a furnace and it short cycles all winter.
Replacement and furnace installation Calgary homeowners can trust, from the sizing measured on the first visit to the combustion test on the way out.

BBB A+ Accredited
WCB Alberta currentThe answer is not always the expensive one, and not always the cheap one. Here is how we decide, in the same words we would use standing in your basement.
The unit has real life left and the fault is a part, not the design.
The money is going into a unit that will ask again next season.
If a repair gets you another few good seasons we will say so. Nobody here works on commission.
Two quotes for the same furnace can be thousands apart, and it is almost never the box that explains it. These four are what you still have after the van leaves.
Sized on what your house actually loses, not on whatever came out. Oversize a furnace and it short cycles all winter.
A new furnace on an undersized return runs hot and loud. The filter goes in the right size, in a slot you can reach.
A two-stage furnace on a single-stage thermostat runs like a single-stage one. Wired, configured, and shown to you before we go.
The permit pulled, the inspection booked in your name, and the equipment warranty registered. Two years on the labour.
Three steps, and the same person start to finish. Whoever comes out and gives you the quote is the one who returns to see the installation is done properly.
A real visit to your Calgary house. The sizing, static pressure across the ductwork, gas line capacity, venting route.
Equipment, labour, venting, gas, electrical*, permit and disposal, all itemised on one sheet before anything is ordered.
Boot covers on, drop sheets down, old unit out and the new furnace installed. Every technician in your house is a TNT employee.
The quote is written on the visit, not posted to you three days later. If your system is down right now, skip the form and call. 24/7 emergency service, an owner answers or calls back.
*Electrical sometimes needs a licensed electrician. Where it does, it is discussed on the visit and added to the quote afterwards rather than priced on the spot.
Most furnace installations in Calgary take a single day. A straight swap is out, in, commissioned and cleaned up by mid afternoon.
A straight swap in the same footprint. Old unit out, the new one set and levelled, gas and venting reconnected, thermostat configured, combustion tested.
If the venting has to come off the chimney. Sidewall PVC means new penetrations to cut, clearances to hold at the terminations, and a condensate drain to route.
If the gas line is undersized for the new unit, or the return is strangled. Both get priced before the job is booked, never discovered halfway through it.
Which of those three applies is decided on the quoting visit. If it is worth fixing instead, we book Furnace Repair & 24/7 Emergency instead.
A furnace installation Calgary homeowners did not plan for is a four-figure decision.
Promotions on new installations change through the year, so ask what is running when you book. Once approved, you sign off directly with the lender.
The discount comes off the price we quote you. There is no list price marked up first so the saving looks bigger than it is. Ask about it when you book.
Equipment, labour, and what is included, itemised before any work starts. If something turns up on the day, you decide before we carry on.
If our workmanship is at fault we come back and fix it, no argument. The equipment carries its own manufacturer warranty on top of that.
Subject to a third-party credit check. Approval and terms are set by the lender, not by us, and we will tell you what you qualify for before you commit.
A furnace is a box a hundred companies in Calgary can sell you. What separates one furnace installation Calgary quote from the next is who bolts it in.
Since 2020
Started by family and close friends and still run by them. No head office, no franchise agreement, and no regional manager between you and the work.
No subcontractors, on any job
The technician in your mechanical room is a TNT employee, not a crew hired for the week. The standard is the same on the fifth job of the day as on the first.
24/7, answers or calls back
No heat at 2am in a Calgary February is an emergency, not a ticket. Ring at any hour and an owner answers or calls back, tells you what to check, and when someone can be there.
Before a tool leaves the van
An itemised quote covering equipment, labour and what is included. 15% off new installs, plus financing with promotions that change through the year.
Combustion tested every install
Gas pressure set, venting verified, static pressure read across the ductwork, and a combustion analysis run before we leave. Two year warranty on the labour.
Every review TNT has ever received is a five star review. These are the Calgary homeowners whose furnace installation we did.
TNT installed the furnace system on our new build, and then we proceeded to get our AC with TNT as well. Jamie was super responsive, kind, and informative… In addition to being fairly priced.
Jamie and his team provide incredible expertise. They gave me consultative choices to improve my existing system, and clean installation done right… all at a fair price.
Great job and great price.
It was -30 kind of winter day… other companies asked for us to wait over 24 hours… Jamie came to service our non heating furnace within an hour and fixed the problem quickly.
Amazing service. I would not go with anyone else. Jamie tells you the truth, stands by his work and follows up.
Not only was TNT very reasonably priced, they fit me into their busy schedule during the heat spell and got me all set up in no time.
Jaime was professional and kept me informed throughout the entire process… His technician arrived on time, was knowledgeable, and took the time to answer all of my questions.
Would highly recommend. Check with TNT before making any decision regarding heating or AC install. Believe me. They were amazing.
Every furnace installation Calgary homeowners get from us is high efficiency condensing, 95% AFUE or better. The choice you actually make is staging, which is how finely the furnace controls its output.
One output, on or off
Fires at full output every time it runs, so the house swings either side of the thermostat. Defensible on a small tight house, a rental, or one you are selling.
Low fire and high fire
Runs on low fire for most of a Calgary winter and steps up when it turns cold. Longer, gentler cycles, quieter operation, and fewer swings through a chinook.
Variable, with an ECM blower
Trims its output in fine increments instead of steps, paired with a variable-speed blower. The most even heat and the most expensive, and it wants sound ductwork.
Bring us the quotes you already have. We will walk you through what each one is proposing, line by line, so you can compare them on the same terms.
We do not publish a price here. The honest spread is too wide for one number to mean anything until somebody has seen your mechanical room. These six things are what your quote is made of.
Worked out by measuring your own house, not copied off the old nameplate. Paying for output the house cannot use is how a quote gets inflated.
A single-stage condensing unit and a modulating one do the same job at very different prices. This is the one line on the quote you genuinely control.
Coming off a chimney and out a sidewall in PVC means new penetrations, correct terminations and clearances, and a condensate drain that will not freeze.
The pipe has to carry the new furnace with the hot water tank, the range and the garage heater all running. Where it will not, it gets upsized and priced.
We read static pressure before quoting. An undersized return strangles any furnace put in front of it, so if one needs opening up you see it on the sheet.
A humidifier, a smart thermostat, a filter cabinet, or an air conditioner while the plenum is open. One visit costs less than two, and none of it is required.
The number you approve is the number you pay. The 15% off new installs comes off the real quote, and HVAC financing in Calgary runs with monthly promotions on new installations, subject to a credit check.
Furnace installation in Calgary and the surrounding communities, quoted on site rather than over the phone.
All four quadrants, and no part of the city is treated as out of the way.
Further out? Tell us where you are and we will say straight away.
The ten questions we get asked most about furnace installation Calgary homeowners book, price included. If yours is not here, ring the number and ask an owner.
Question not answered here? Ask TNT Heating directly or call (403) 408-6136.
A free written quote on furnace installation Calgary homeowners can hold us to, after a proper look at the house. No salesperson, and an owner on the phone or calling straight back.
Broken down right now? Call us. The line is 24/7 and an owner answers or calls straight back.
