# HVAC Maintenance Schedule Every Ottawa Homeowner Should Follow

Ottawa's climate demands a lot from your HVAC system. Summer highs above 30°C. Winter lows below -30°C. A well-maintained system handles these extremes efficiently. A neglected system fails when you need it most.

## Monthly Tasks

### Check and Replace Filters

**Why it matters:** Dirty filters restrict airflow, making your system work harder and reducing efficiency by up to 15%.

**How to do it:**

1. Turn off the system

2. Locate the filter (usually near the return air duct or inside the furnace)

3. Check for dirt accumulation

4. Replace if dirty (typically every 1-3 months depending on filter type)

**Filter types:**

- Basic fiberglass: Change monthly

- Pleated: Change every 2-3 months

- HEPA: Change every 6-12 months (check manufacturer guidelines)

### Listen and Observe

Briefly pay attention to your system:

- Unusual noises (banging, squealing, rattling)

- Unusual smells

- Inconsistent temperatures between rooms

- System cycling on and off frequently

Early detection prevents expensive repairs.

## Seasonal Tasks

### Spring (Before Cooling Season)

**Professional AC tune-up should include:**

- Refrigerant level check

- Condenser coil cleaning

- Evaporator coil inspection

- Thermostat calibration

- Electrical connection tightening

- Drainage line clearing

- Motor lubrication

- Overall system inspection

**Cost:** $100-$200

**DIY tasks:**

- Clear debris from around outdoor unit (2 feet clearance minimum)

- Wash outdoor unit with garden hose (gently)

- Open any closed supply vents

- Replace thermostat batteries

- Test AC operation before you need it

### Fall (Before Heating Season)

**Professional furnace tune-up should include:**

- Heat exchanger inspection

- Burner cleaning and adjustment

- Ignition system check

- Safety control testing

- Combustion analysis

- Blower motor inspection

- Gas pressure verification

- Flue pipe inspection

**Cost:** $100-$200

**DIY tasks:**

- Replace furnace filter

- Test heating operation

- Check carbon monoxide detectors

- Clear area around furnace (3 feet clearance)

- Ensure all supply and return vents are unobstructed

## Annual Tasks

### Ductwork Inspection

Every 1-2 years, check accessible ductwork for:

- Disconnected sections

- Damaged insulation

- Visible gaps or holes

- Signs of pest activity

### Duct Cleaning

**When to clean:**

- Visible mold growth

- Vermin infestation

- Excessive dust or debris

- After major renovation

**Frequency:** Every 3-5 years for typical homes, more often if issues present

**Cost:** $300-$500 for whole-house cleaning

### Thermostat Evaluation

Annually assess whether your thermostat meets your needs:

- Is it programmable?

- Does it offer Wi-Fi control?

- Does it support zoning if needed?

- Are schedules optimized?

Upgrading to a smart thermostat can save 10-15% on heating/cooling costs.

## Winter-Specific Maintenance

### Monitor Furnace Operation

- Is the system maintaining set temperature?

- How often does it cycle?

- Any unusual sounds or smells?

### Check Humidifier (If Equipped)

- Clean or replace pad/filter

- Check water supply line

- Verify operation

- Adjust humidity setting (30-40% typically comfortable)

### Clear Exhaust Vents

After heavy snow, check:

- Furnace exhaust and intake pipes

- Dryer vent

- Range hood vent

- Bath fan vents

Blocked vents can cause carbon monoxide buildup or system shutdown.

## Summer-Specific Maintenance

### Monitor AC Performance

- Is the system keeping up on hot days?

- How often does it cycle?

- Any ice forming on the unit or lines?

### Clear Condensate Drain

- Locate the condensate drain line (usually a PVC pipe near indoor unit)

- Pour 1 cup of white vinegar down the line to prevent algae buildup

- Check drain pan for water accumulation

### Check Refrigerant Lines

- Look for ice formation (indicates problem)

- Ensure insulation is intact

- No visible leaks or oil stains

## System-Specific Considerations

### Heat Pumps

Heat pumps work year-round and need:

- Filter changes (may need more frequent in heating season)

- Defrost cycle monitoring in winter

- Professional tune-ups twice yearly

### Boilers

If you have hot water heat:

- Annual professional inspection

- Radiator bleeding (when tops are cold but bottoms are hot)

- Pressure gauge monitoring

- Leak inspection

### Geothermal Systems

- Professional inspection annually

- Loop system pressure check

- Filter changes

- Coil cleaning

## Signs You Need Professional Help

Don't wait for complete failure. Call a technician if:

**Heating:**

- Furnace not igniting

- System running constantly without reaching temperature

- Strange smells (especially burning or gas)

- Yellow or flickering pilot light (should be blue)

- Carbon monoxide detector alarming

**Cooling:**

- AC not cooling despite running

- Ice on indoor or outdoor unit

- Water pooling around indoor unit

- Electrical tripping when AC runs

- Refrigerant leak signs (hissing, ice, reduced cooling)

## Maintenance Costs vs. Neglect Costs

**Annual maintenance:**

- Two professional tune-ups: $200-400

- Filter replacements: $50-150

- Occasional repairs: $100-300

- **Total: $350-850/year**

**Consequences of neglect:**

- Emergency repair visit: $200-500

- Failed heat exchanger: $1,500-3,000

- Compressor replacement: $1,500-2,500

- Premature system replacement: $5,000-15,000

**Efficiency impact:**

- Well-maintained system: Operates at rated efficiency

- Neglected system: 5-25% efficiency loss

- On a $2,000/year heating bill, that's $100-500 wasted annually

## The Maintenance Calendar

**January:** Check filters, monitor heating operation

**February:** Check filters, clear snow from vents

**March:** Check filters, schedule spring AC tune-up

**April:** Professional AC tune-up

**May:** Check filters, test AC, clean outdoor unit

**June:** Check filters

**July:** Check filters, monitor AC operation

**August:** Check filters, schedule fall furnace tune-up

**September:** Professional furnace tune-up

**October:** Check filters, test heating, check humidifier

**November:** Check filters, winterize outdoor unit

**December:** Check filters, monitor heating operation

Consistent maintenance keeps your system running efficiently and extends its lifespan by 3-5 years on average. That's real money saved.

The Bottom Line

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