← All terms
Definition
An on-demand water heater that heats water only as you use it, providing continuous hot water and a compact footprint — with a higher upfront cost than a traditional tank.
Why this matters for your home
- Use this term to ask better questions when you compare estimates.
- Connect the definition to a real decision in our Learning Center guides.
- Confirm how it applies to your home's age, equipment, and Utah climate.
Related pages
Category: Plumbing