If your water heater is over 10 years old, you're facing a decision: replace with a traditional tank or upgrade to tankless. Here's the honest comparison.
Traditional Tank Water Heaters
Pros: Lower upfront cost ($800–$1,500 installed), simple reliable technology, works well for most households.
Cons: Standby heat loss (heats water even when you're away), can run out during peak demand, shorter lifespan (10–12 years).
Tankless (On-Demand) Water Heaters
Pros: Endless hot water — never runs out. 20–35% lower energy bills. Longer lifespan (20+ years). Compact — frees up floor space. Eligible for government rebates.
Cons: Higher upfront cost ($2,000–$3,500 installed). May require gas line upgrade. Flow rate limits if multiple sources run simultaneously.
Which Should You Choose?
Choose tank if: you're on a tight budget, have a small household (1–2 people), or your gas line can't support tankless without expensive modifications.
Choose tankless if: you have a family of 3+, you frequently run out of hot water, you care about long-term energy savings, or you're doing a renovation.
🔥 Not sure which is right for your home? Call Dr. Plumbing at (416) 880-1374 — we give free, unbiased recommendations based on your household and current setup.