We replaced an aging 75-gallon tank water heater with a new tankless system, so the household gets hot water on demand instead of waiting on a storage tank to recover. The install also frees floor space in the same closet.
Tank water heaters store and reheat a fixed volume of water. When the household runs multiple showers, laundry, and dishwashing close together, that stored supply can run out. A properly sized tankless unit heats water on demand, so the household is not waiting on a tank to recover between uses.
What we completed on this job
- Removed the existing 75-gallon tank water heater
- Installed a new tankless water heater
- Updated the connections, venting, and related plumbing for a code-compliant install
What the homeowner gains
- Hot water on demand for normal simultaneous use
- Less standby heat loss than continually reheating a large tank
- More usable space in the same closet thanks to a compact wall-mounted design
The household can run back-to-back showers and kitchen use without waiting on a tank to reheat. That is the practical gain from a correctly sized tankless install.
Why homeowners switch from tank to tankless
A storage tank keeps 40 to 75 gallons hot even when nobody is drawing water. That standby heat loss shows up on the energy bill, and the tank still runs out when showers, laundry, and dishwashing overlap. A properly sized tankless unit heats water as it flows, which is why households often get continuous hot water for normal simultaneous use.
The compact wall-mounted design also frees floor space in a closet or garage alcove that used to be filled by a tall cylinder, straps, and a drain pan. On this job, the same opening that held the 75-gallon tank now holds a much smaller unit with updated copper piping and venting.
What we check before recommending tankless
Not every home is ready for the same model. Gas line capacity, vent path, electrical needs, and peak hot-water demand all matter. We inspect the existing setup, explain tank versus tankless options in plain language, and only recommend a conversion when the property can support a reliable install to code.
Considering a tankless water heater?
Not every home is a candidate for the same unit. Gas supply, vent path, electrical needs, and peak hot-water demand all matter. Drain Doctor Plumbing & Rooter evaluates the existing setup, explains tank versus tankless options in plain language, and installs the system to code.
We have served Covina, West Covina, Glendora, Walnut, and the wider San Gabriel Valley since 1996. Browse our water heater repair and replacement service, see more of our work, or contact us to schedule an assessment. Call (626) 332-9984 for same-day service when scheduling allows.