- Brand
- Lennox
- Efficiency
- 97% AFUE
- Heating control
- Two-stage
- Purchase check
- Full model + written scope
Lennox EL297V
EL297V separates two-stage combustion from variable-speed air delivery. In a side-by-side proposal with EL297E, both families have a 97 percent headline AFUE, so the blower and control details deserve more attention than the shared efficiency number. Ask the contractor to describe the practical difference in your existing duct system and thermostat arrangement. This is especially valuable when the higher quote bundles a thermostat change or filter upgrade that the alternative excludes.
Size, efficiency & equipment
| Brand | Lennox |
|---|---|
| Model family | EL297V |
| Fuel / equipment class | Natural gas; propane conversion only where explicitly approved for the exact model and kit |
| Efficiency | 97% AFUE |
| Burner stages / control | Two-stage |
| Blower | Variable-speed |
| Input capacity, BTU/h | Not verified — obtain the exact model specification |
| Rated output, BTU/h | Not verified — obtain the exact model specification |
| Cabinet dimensions | Not verified — obtain the exact model specification |
| Canadian availability | Brand has Canadian-market evidence; exact model, orientation, certification and current local stock require confirmation. |
Manufacturer family headline / up to; confirm selected model.
Family maxima and ranges are not the specification of every size. Obtain the complete model suffix, current output rating and dimensional drawing. Cabinet dimensions do not include all service clearances.
Manufacturer pictures & technical drawings
Manufacturer picture and original source ↗ · Manufacturer-hosted; availability may change.
- EL297UH 2026 manufacturer installation manual with dimensional drawings ↗
- Lennox representative furnace rendering displayed on the manufacturer’s EL297V page; not a dimensional photograph of a selected SKU. ↗
View manufacturer document on this page
Use the document’s dimensions or technical-data section. On a phone, the original PDF link may be easier to read. This is a manufacturer document, not an installation instruction from this guide.
What makes EL297V worth comparing
EL297V separates two-stage combustion from variable-speed air delivery. In a side-by-side proposal with EL297E, both families have a 97 percent headline AFUE, so the blower and control details deserve more attention than the shared efficiency number. Ask the contractor to describe the practical difference in your existing duct system and thermostat arrangement. This is especially valuable when the higher quote bundles a thermostat change or filter upgrade that the alternative excludes.
Capacity and physical fit
A complete model-specific input value is required; this family overview does not substitute a guessed capacity. Obtain the manufacturer-rated output for that same model; this guide does not calculate it by multiplying input by seasonal AFUE. Exact cabinet dimensions were not established in this overview; require the current full-model drawing before accepting fit.
Review the proposed installation
Use a same-scope comparison for EL297V: separate equipment, labour, vent route, condensate work, thermostat, filter cabinet, disposal and tax. Mark unresolved items as unknown instead of assigning them a zero cost. A remote assessment using postal context and photographs can help organize questions, but it cannot establish hidden site conditions or a fair maximum price. If a substantial price gap remains after the differences are explained, obtain an independent written second opinion.
The question that resolves the choice
The specific question to put to the installer is: What changes between the EL297V and EL297E proposals when installation scope and thermostat are held constant? Ask for the answer in writing, linked to the quoted EL297V model and the work included. If the explanation changes after the visit, retain both versions and identify the newly observed condition. This gives a second reviewer useful evidence and avoids comparing an early allowance with a final assessed price as though they were the same promise.
Read the efficiency number in context
The published 97% figure for EL297V is a family comparison point. Ask for the selected model’s own rating and keep that record with the proposal. It does not include every household energy expense, determine the price of fuel or establish the condition of the ducts. An operating-cost estimate should disclose its fuel-price and usage assumptions so a reviewer can reproduce the calculation rather than accept an unexplained saving.
Cost, reliability & alternatives
No universal Canadian installed price is asserted. Obtain dated CAD equipment and installed-scope amounts, tax treatment and local assessment; compare like-for-like written proposals.
No defensible comparative Canadian failure-rate ranking established.
Read the Lennox brand assessment · Installed-price context · Compare this model
Sources & verification
Research snapshot: 11 October 2026. Confirm the current complete model, Canadian supply and warranty before purchase.