Replacing a furnace is one of the bigger purchases most homeowners make, and it often happens under pressure in the middle of winter. Taking a little time to understand sizing, efficiency and what a good quote looks like can save money and years of discomfort.
Here is how we suggest approaching the decision.
Sizing should be calculated, not guessed
Bigger is not better. An oversized furnace heats quickly, shuts off, and cycles often, which wastes fuel and leaves some rooms uncomfortable. A properly sized unit runs longer, gentler cycles. A good installer looks at the house, not just the old furnace's label, because insulation and windows may have changed since it was installed.
Understanding efficiency
Furnace efficiency is expressed as AFUE, the percentage of fuel that becomes heat in your home. High efficiency condensing furnaces are the standard choice in Ontario today. Features like two stage or modulating burners and variable speed blowers add comfort and quieter operation, and can lower running costs.
Comparing quotes fairly
Two quotes can look very different simply because they include different things. Ask each installer to spell out the scope.
- Make, model and efficiency rating.
- Removal and disposal of the old unit.
- Venting changes and condensate drain.
- Gas permit and inspection.
- Thermostat, filter base and startup testing.
- Warranty terms on parts and labour, in writing.
Not sure it's a DIY fix?
Describe the symptom over the phone and a HeatNest technician will tell you what it likely is and what a repair involves.
Call (289) 801-7262Timing the replacement
If your furnace is aging and has needed repeated repairs, replacing it in late summer or early fall gives you time to compare options. Waiting until it fails in January limits your choices and often means rushing the decision.
Questions to ask any installer
A trustworthy installer will happily answer these.
- Are your technicians licensed for gas work?
- How did you size this furnace for my home?
- What happens if something goes wrong after installation?
- Who handles permits and the gas inspection?
Common questions
+How long does furnace installation take?
Most straightforward replacements are completed in a day.
+Should I replace my AC at the same time?
If the AC is old, replacing both together can save labour and ensures the components are matched.
+What size furnace do I need?
That should be determined by assessing your home's heat loss, not just copying the old unit.
+Is a high efficiency furnace worth it?
For most Ontario homes, yes. They use less gas and are the common standard for replacements.
+Can I get financing?
Ask us about payment options when you request a quote.