Tankless Water Heaters
A tankless water heater provides hot water only when it is needed, eliminating the need to continuously heat and store water inside a large tank. When properly selected and installed, a tankless system can deliver dependable hot water, reduce equipment space, and improve energy efficiency.
RDZ Plumbing and Drains provides professional tankless water heater installation, replacement, and plumbing service for homes, businesses, rental properties, and multi-unit buildings throughout San Diego.
Our plumbers evaluate your hot-water demand, existing gas or electrical service, water-line capacity, venting, equipment location, and installation requirements before recommending a suitable system.
Whether you are replacing an older tankless unit or converting from a traditional water heater, we can help you plan a safe and reliable installation.
Get A Free Quotes
How Does a Tankless Water Heater Work?
A traditional water heater stores heated water inside a tank. A tankless water heater activates when a hot-water fixture is opened.
Cold water enters the unit and passes through a heat exchanger, where it is heated by a gas burner or electric heating elements. The heated water then travels directly to the open faucet, shower, or appliance.
When hot-water use stops, the unit shuts down.
Because the system heats water on demand, it does not experience the same standby energy loss associated with maintaining a full tank of heated water throughout the day.
Benefits of Tankless Water Heaters
On-Demand Hot Water
A properly sized tankless system can provide continuous hot water without relying on a limited storage tank.
The unit must still have enough capacity to support the number of fixtures being used at the same time.
Improved Energy Efficiency
Tankless systems operate only when hot water is requested, which may reduce the energy used to maintain stored water.
Actual savings depend on equipment efficiency, household usage, fuel costs, installation quality, and maintenance.
Space-Saving Design
Tankless water heaters are typically mounted on a wall and occupy less floor space than traditional tank-style units.
This can be helpful in garages, utility rooms, closets, apartments, and other areas with limited space.
Longer Potential Service Life
With proper installation and maintenance, a tankless system may provide a longer operating life than some traditional storage water heaters.
Water quality, usage, maintenance, and equipment condition all affect service life.
Reduced Risk of Tank Failure
Because there is no large storage tank, the system does not carry the same risk of a corroded tank releasing a substantial amount of stored water.
Tankless units can still develop leaks from internal components, valves, fittings, and plumbing connections.
Precise Temperature Control
Many modern units allow the water temperature to be adjusted through a digital control panel.
Professional setup helps ensure that the temperature is appropriate for comfort, performance, and safety.