Bungalow
Roof exposure, horizontal ducts and basement or crawl-space access.
At a glance
- Coverage
- Canadian market & registry
- Reviewed
- 11 October 2026
- Price
- Scope-specific written quote
- Reliability
- Evidence, not invented scores
Canadian furnace comparison
Bungalow vs two-storey vs three-storey furnace workloads
Compare heating demand, air distribution and installation labour separately. Storey count alone cannot determine furnace capacity or a fair price.
The same floor area can create different jobs
Compare three deliberately simplified detached, square-plan houses, each with 150 m² (about 1,615 ft²) of above-grade floor area and 2.5 m per storey. These are geometry examples, not assessed Toronto homes. Basement area, openings, insulation, air leakage and shared walls are excluded.
| Illustrative geometry | Bungalow | Two storeys | Three storeys |
|---|---|---|---|
| Above-grade floor area | 150 m² | 150 m² | 150 m² |
| Footprint / horizontal roof area | 150 m² | 75 m² | 50 m² |
| Gross above-grade exterior wall area | 122.5 m² | 173.2 m² | 212.1 m² |
| Distribution question | Long horizontal runs and distant rooms | Supply and return paths between floors | Top-floor runs, vertical chases and balancing |
| Potential installation work | Basement or crawl-space access; return transitions | Basement exchange plus any justified upstairs duct/control work | Same exchange, or added chase, access and distribution work if needed |
| Automatic BTU or price multiplier? | No | No | No |
Calculation: footprint = 150 ÷ storeys; square perimeter = 4 × √footprint; gross wall area = perimeter × 2.5 × storeys. A smaller roof and a larger wall surface pull in different directions. The net heating load needs the actual thermal properties and exposed areas.
Three workloads to keep separate
| Heating workload | How much heat the building loses at the selected winter design condition. This determines required delivered heat, using a qualified heat-loss calculation. |
|---|---|
| Air-distribution workload | How the required heat reaches individual rooms. Duct capacity, return paths, balancing and controls affect comfort. |
| Installation workload | The labour and materials to fit, connect, vent, drain, wire, commission and service the selected equipment. Access and required alterations affect price. |
A cold third floor may require distribution work without a larger furnace. A bungalow can have a difficult crawl-space installation despite having only one storey. A finished basement can make the same duct alteration more labour-intensive than an open one.
Compare the actual layout
Two-storey home
Whole-house capacity versus upstairs distribution and return paths.
Three-storey home
Top-floor diagnosis, stack effect, chases and justified controls.
Translate the findings into the quote
Ask each contractor to connect additional charges to an observed condition: a return that needs enlargement, a new vent route, a difficult removal, or a documented control requirement. Request a base furnace exchange and optional improvements separately where practical.
Read explicit explanations of price differences · Compare totals and itemized allowances · See Toronto-area winter climate context
Sources & verification
Research snapshot: 11 October 2026. Confirm the current complete model, Canadian supply and warranty before purchase.