Lennox Furnace Parts: What’s Replaceable, What’s Not & What It’ll Cost You

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If you own a Lennox furnace in Metro Vancouver, here’s a reality check: parts wear out, and repairs can add up fast. Some fixes are simple. Others? Not so much.

At Whyte Mechanical, we’ve repaired and replaced Lennox furnaces in homes across Vancouver, North Shore, Coquitlam, and Burnaby. We’ve seen every part fail at some point—and we know exactly when it’s worth fixing, and when it’s time to walk away.

Here’s your no-fluff breakdown of what’s replaceable, what’s not, and what it’ll really cost you.

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What You Can Expect to Replace (and the Price Tag That Comes With It)

These are the most common Lennox furnace parts we replace, with average installed prices based on real Metro Vancouver projects:

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Keep in mind: costs vary by model, home layout, and condition of surrounding components. We provide upfront quotes with zero surprises. Use our HVAC Install + Replacement Cost Calculator to get an instant estimate tailored to your system.

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The Big One: Lennox Heat Exchanger Replacement

The heat exchanger is the core of your furnace. If it fails, repairs usually cost $1,500–$2,500—and that’s if the rest of the unit is in good shape.

When we recommend replacing the whole furnace instead:

• Your Lennox is out of warranty
  
• It’s 12+ years old
  
• You’ve had multiple repairs in the last 2–3 years
  
  

Upgrading to a new unit (yes, even Daikin) might be the smarter long-term play. We install both high-efficiency Lennox and Daikin systems backed by full warranties and transparent pricing.

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What’s NOT Worth Replacing

At Whyte, we’re straight shooters. If the repair cost crosses $1,500 or if multiple parts are going, we won’t pressure you to fix it. Instead, we’ll break down your options for:

• A full replacement
  
• Rebates available through CleanBC or Canada Greener Homes
  
• Financing options to spread the cost
  

Not sure where you stand? We’ll inspect your Lennox furnace and walk you through every option—without the sales pitch.

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Final Word from Whyte Mechanical

There’s no “forever furnace.” But with honest advice and professional installation, you’ll get more years (and fewer repairs) from your system.

Need a fast quote or expert opinion?

• Use our Free & Instant HVAC Price Calculator
  
• Or reach out to our local team for a service call
  
  

We’re Whyte Mechanical—trusted by Vancouver homeowners who want it done right the first time.