Top 5 Tankless Water Heater Problems Homeowners Should Know

Tankless water heaters are popular for their energy efficiency and endless hot water, but they come with potential drawbacks. Here are the top 5 problems homeowners may encounter:

1. High Initial Cost

Tankless units cost more upfront than traditional water heaters, and installation may require upgraded gas lines or electrical systems. While they save energy over time, plan for higher installation expenses.

2. Limited Flow Rate

Because tankless systems heat water on demand, multiple simultaneous hot water uses can reduce pressure or cause cooler water during showers. Larger households may need higher-capacity models or multiple units.

3. Cold Water Sandwich

Some users experience brief bursts of cold water between hot water cycles, especially when switching fixtures quickly. Newer models with improved sensors minimize this effect.

4. Regular Maintenance

Hard water can cause mineral buildup in the heat exchanger, reducing efficiency. Annual flushing is recommended, and using a water softener can help prolong the system’s life.

5. Power and Gas Requirements

Tankless systems need adequate gas supply or electricity. Homes with older plumbing or undersized gas lines may face heating issues. Power outages also stop hot water flow unless a backup is available.

Is a Tankless Water Heater Right for You?

Tankless water heaters are great for energy savings, consistent hot water, and space efficiency. Understanding these common problems helps homeowners make informed decisions.

Schedule a consultation with us today to assess your home’s water usage, plumbing, and electrical setup before installing a tankless water heater.