Tank-to-Tankless Conversion in Orange County, CA
Switching from a storage tank to a tankless water heater is more than a unit swap. A gas tankless unit usually needs a larger gas supply than a tank, a new vent path, a condensate drain on condensing models, and a new mounting location on a wall.
We plan all of that before quoting, so you know up front what your home needs and what changes to expect in the garage, closet or exterior wall.
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Signs you need tank-to-tankless conversion
- Your tank is near the end of its life and you would rather not replace it with another tank.
- Hot water runs out during back-to-back showers or when filling a large tub.
- You want to free up floor space in a garage, closet or laundry room.
- You want to reduce standby heat loss from keeping a tank hot all day.
- You are planning a remodel and want the water heater handled at the same time.
What the job includes
- Arrival and site survey: we measure gas meter capacity, gas line size and length, and the routes available for venting and condensate.
- Plan and quote: we explain the unit size, location, gas line changes and venting route before any work begins.
- Permit: a conversion typically requires a permit because gas, venting and water piping change. We handle the permit where your city requires one.
- Tank removal: the tank is drained, disconnected and carried out, and the old flue is capped or removed as needed.
- Gas line upgrade: we run or upsize the gas line to the new unit where the existing line is too small.
- Mounting and plumbing: the tankless unit is mounted and connected with service valves and a pressure relief valve.
- Venting and condensate: we install the new vent and route condensate to an approved drain.
- Startup and testing: we check gas pressure at full fire, set the temperature and test hot water at several fixtures.
- Haul-away: the old tank and debris are removed.
Options we install or service
Tank vs tankless: tankless units supply continuous hot water and remove the standby loss of a tank. A tank can deliver a large burst of hot water at once and costs less to install, so we lay out both before you decide.
Gas vs electric: most conversions here are gas-to-gas. Electric tankless units need substantial electrical capacity, so we check the panel first.
Condensing vs non-condensing: condensing models generally use PVC venting and need a condensate drain. Non-condensing models need metal venting.
Brands we work with for this service
How long it takes
Most conversions take a full day because of the gas, venting and mounting work.
Longer gas runs, roof penetrations or a new location can extend the job.
Call for a free quote
Conversion quotes depend on gas line length, vent route and the unit you choose. Call us for a free on-site quote.
(714) 244-8562Tank-to-Tankless Conversion FAQ
Will I need a bigger gas line for tankless?
Often yes. Gas tankless units draw much more gas at full fire than a tank. We measure the line and meter before recommending a unit.
Can the tankless unit go where my tank was?
Sometimes, but tankless units mount on a wall and need their own vent path. Many homeowners move the unit to an exterior wall to free up space.
Does a tank-to-tankless conversion need a permit?
In most cities, yes, because the gas, vent and water piping change. We explain your city's requirements before work starts.
Will tankless give me hot water faster at the tap?
Not by itself. The water still travels from the unit to the fixture. A recirculation system can shorten the wait.