Quick answer
Tankless wins on lifespan and space when gas/electrical service supports it; tank wins on upfront cost and simple retrofit — heat-pump hybrid tanks add efficiency and rebates for many Washington homes.
- Compare practical options by risk, cost range, and comfort outcome.
- Identify what to verify in an estimate before you sign.
- Choose a path that fits your budget and timeline.
Replacing a failed tank
Emergency replacement is the worst time to decide — use this guide before failure if possible.
Compare your options
Tank
Fastest install, lowest upfront, good for moderate use.
Tankless
Endless hot water within flow rating; verify gas line or electrical service.
Heat-pump hybrid
Highest efficiency; rebate-eligible; needs space and condensate drain.
Key terms and context
This guide is written for plumbing decisions in the Puget Sound. It uses the same terminology you'll hear from inspectors, technicians, and permit offices.
Undersized tankless
Cold showers during peak demand — size to fixture count.
How we build this guidance
- Straight answers first, so you know your options without the fluff.
- Written and reviewed by techs who do this work every day.
- Specific to Puget Sound homes, weather, and utilities.
- Updated 2026-06-08 from real plumbing jobs around the region.
Methodology: Pricing from cost guide; rebates verified at estimate.
Last updated: 2026-06-08
Ready for the next step?
Get a free, no-obligation estimate from Eco — honest range before any work begins.
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Common questions
Which lasts longest?
Tankless typically 18–20+ years; tank 8–12; hybrid 13–15 — maintenance matters for all.