- Brand
- Lennox
- Efficiency
- 97% AFUE
- Heating control
- Two-stage
- Purchase check
- Full model + written scope
Lennox EL297E
EL297E is the comparison point for buyers who want two firing stages without assuming they need the variable-speed package. Its constant-torque blower should be identified accurately in the proposal; electronic motor technology is not one interchangeable feature. Compare the control and airflow plan with EL297V, and ask whether the existing cooling equipment changes the recommendation. The sensible purchase is the model whose documented functions match the house, rather than the one with the longest list of adjectives.
Size, efficiency & equipment
| Brand | Lennox |
|---|---|
| Model family | EL297E |
| 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 | Constant-torque |
| 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.
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 EL297E worth comparing
EL297E is the comparison point for buyers who want two firing stages without assuming they need the variable-speed package. Its constant-torque blower should be identified accurately in the proposal; electronic motor technology is not one interchangeable feature. Compare the control and airflow plan with EL297V, and ask whether the existing cooling equipment changes the recommendation. The sensible purchase is the model whose documented functions match the house, rather than the one with the longest list of adjectives.
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
Before accepting EL297E, ask what the completion record will contain. The installer should identify the full supplied model, final controls, relevant commissioning measurements and any conditions still requiring follow-up. Keep the warranty registration together with the paid invoice and equipment photographs. Those records make a later service call more useful because the next technician can distinguish the intended setup from assumptions about how the system was installed.
The question that resolves the choice
The specific question to put to the installer is: How will two-stage operation be controlled with the proposed thermostat, and what airflow measurements support the selection? Ask for the answer in writing, linked to the quoted EL297E 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 EL297E 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.