If your hot water runs out fast, takes forever to recover, or your lights/daily routine “fight” each other when multiple fixtures are running, your water heater may be undersized for your household.
Why size matters
A too-small unit gets overworked. That can mean inconsistent hot water, higher energy use, and more wear on parts over time. (Too big isn’t great either — it can waste energy.)
Quick signs it’s undersized
- Hot water runs out too soon (showers go cold, tub won’t fill with hot water)
- You can’t run two things at once (running the shower while the dishwasher or laundry is on causes a noticeable drop in hot water)
- Long recovery time (you’re waiting a while for hot water to come back)
- Utility bills creeping up (unit runs more often trying to keep up)
- More repairs than expected (overworking can shorten component life)
What to do next
- Confirm the right size based on household size, usage habits, and appliances
- Consider upgrading to a larger tank or the right-size tankless system
- Improve efficiency with insulation and proper temperature settings
Maintenance that helps (no matter the size)
- Flush yearly to remove sediment buildup
- Check the anode rod every few years
- Watch for leaks/rust at the tank and connections
If you’re seeing these signs and want a straightforward evaluation, Bobcat Home Inspector can help you pinpoint what’s going on and what makes sense next.