John Wood Natural Draft Hot Water TankInstalled in Ottawa
Simple, reliable, and proven. The natural draft water heater has been heating Canadian homes for generations. No fans, no complexity, just dependable hot water.
Who This System Is For
Homes with existing chimney
Uses your existing vertical chimney for exhaust. No modifications needed.
Budget-conscious replacements
Lower upfront cost than power vent or tankless options.
Simple technology preference
No fans or electronics means less to go wrong.
Standard replacement
Direct swap for existing natural draft tanks.
Key Features & Benefits
Natural Draft Venting
Uses natural convection through your chimney. No fan required.
Works During Power Outages
When the power goes out, you still have hot water. No electricity needed.
Simple Operation
Straightforward gas burner with no electronic controls to fail.
Durable Construction
Glass-lined tank with sacrificial anode for corrosion protection.
Lower Cost
Less expensive than power vent or tankless options.
Canadian Made
Built in Canada with local support and parts availability.
Why We Recommend This System
Our installer's perspective:
- For straightforward replacements where you have chimney access, natural draft is the practical choice.
- Simpler technology means less that can go wrong. These tanks just work.
- Lower upfront cost makes it accessible for budget-conscious homeowners.
- John Wood is the trusted Canadian brand for water heaters.
When it might not be the best fit:
If you don't have chimney access, you'll need power vent. If you want endless hot water or maximum efficiency, consider tankless.
Alternative: Power Vent for flexible placement. Rheem Tankless for unlimited hot water.
Installation & What to Expect
Evaluation
We confirm your chimney is suitable and size the replacement properly.
Simple Quote
Straightforward pricing for a straightforward installation.
Quick Installation
Natural draft installations are typically the fastest, same-day in most cases.
Old Tank Removal
We remove and dispose of your old water heater.
Safety Check
We verify proper draft, check for leaks, and test operation.
Orientation
Quick overview of operation and maintenance.
Maintenance & Longevity
Keep it running efficiently:
- Test the T&P relief valve annually
- Flush the tank yearly to remove sediment buildup
- Check the anode rod every 3-5 years and replace if needed
- Ensure the chimney draft is working properly
Comfort Tech Maintenance Plan
Add water heater maintenance to your annual Comfort Tech visit for complete home equipment care.
Learn About Our Maintenance PlanFrequently Asked Questions
Get Your Free Estimate
No pressure, no obligation. We'll help you decide if this system is right for your home.