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Tankless Water Heaters

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Tankless Water Heaters for Endless Hot Water and Energy Savings

Tankless water heaters deliver continuous hot water while using energy only when you turn on the tap. Their compact design frees up space and can help reduce standby heat loss compared to traditional tanks. Explore options, compare features, and find the right fit for your home at Lowe’s.


Benefits of Tankless Water Heaters

  • Endless Hot Water: On-demand tankless water heaters heat water as you need it, so showers, dishwashing and laundry can run back-to-back without waiting for a tank to refill.
  • Flexible Energy Options: Available in electric models and tankless gas water heaters that support different household energy preferences and installation requirements.
  • Space-Saving Design: Wall-mounted units free floor space in basements, utility rooms or closets, making them ideal for smaller homes and tight installations.
  • Long Service Life: Many on-demand systems are designed with durable heat exchangers and replaceable components, supporting long-term performance when properly maintained.
  • Flexible Applications: Choose models sized for whole-home supply or point-of-use units dedicated to a bathroom, kitchen or workshop sink.

Key Features of Tankless Water Heaters

  • Multiple Fuel Configurations: Available in natural gas and dual-fuel options, including propane tankless water heater models for homes that utilize liquid propane systems.
  • Flow Rate Capacity: Gallons-per-minute ratings help you match a unit to simultaneous demands like running multiple showers or a shower and a washing machine at once.
  • Temperature Control: Digital controls and precise thermostats let you set and monitor outlet temperature for comfort and safety.
  • Condensing Technology: Some gas models use secondary heat exchangers to capture more heat from exhaust gases, which can improve overall efficiency.
  • Advanced Venting: Direct-vent and power-vent configurations support flexible placement, including interior walls or tight mechanical rooms.
  • Smart Connectivity: Select systems offer app integration so you can adjust temperature, track usage and receive maintenance alerts from your phone.
  • Safety Features: Built-in safeguards such as flame failure sensors, overheat protection and freeze protection help protect the unit and your home.

How to Choose Tankless Water Heaters

  • Household Demand: Estimate how many fixtures you’ll use simultaneously and choose a tankless water heater with a sufficient flow rate to handle peak demand.
  • Climate and Groundwater Temperature: Colder incoming water requires more heating power, so homes in cool regions may need higher-BTU or larger electric models.
  • Fuel Availability: Consider whether natural gas, propane or electric service is most practical in your area and select a compatible unit.
  • Installation Location: Plan for wall space, venting routes and access for maintenance when deciding where to mount the unit.
  • Compare Venting Systems: Available in indirect, power and tankless direct water heater configurations, depending on installation needs and home layout.
  • Budget and Operating Costs: Balance upfront price with expected energy savings and maintenance needs to find the best long-term value.
  • Future Upgrades: If you expect to add bathrooms or appliances later, consider sizing slightly larger now to accommodate future demand.

From supplying consistent hot water for busy morning routines to supporting spa-like showers or workshop sinks, tankless water heaters adapt to a wide range of home layouts and lifestyles. Their compact, efficient design makes them a strong choice for remodels, retrofits and new construction. Compare models, capacities and features to find the right on-demand solution for your home at Lowe’s.

Frequently Asked Questions