Tankless water heaters heat water as it is needed instead of storing a full tank. They can provide long periods of hot water and save space, but correct sizing, fuel supply, venting, electrical power and routine care are important to reliable performance.
Tankless repair and troubleshooting
UAC Water Heater services tankless systems that show error codes, fail to ignite, produce fluctuating temperatures, shut down during use or deliver less flow than expected. Diagnosis can include water and gas supply, filters, ignition components, sensors, venting and scale buildup.
Tankless installation
The installation location must support the equipment's input and operating requirements. A gas tankless conversion may require evaluation of the gas line and venting. Electric tankless systems can require substantial electrical capacity. Condensing models also need a suitable condensate route.
Is tankless right for your home?
Potential advantages
- On-demand water heating
- Compact wall-mounted equipment
- No large storage tank
- High-efficiency models available
Planning considerations
- Simultaneous fixture demand
- Gas or electrical capacity
- Venting and condensate
- Water hardness and maintenance
Maintenance and descaling
Mineral accumulation can reduce heat transfer and restrict flow. Maintenance needs depend on water quality, equipment and usage. Follow the manufacturer's instructions and ask whether flushing, filter cleaning or inspection is appropriate for your system.
Tankless replacement
An older tankless unit may sometimes be replaced in the same location, but connections, venting and controls still need evaluation. Newer equipment can have different dimensions and requirements even when the rated capacity is similar.