Tankless Water Heaters in Port Jefferson Station, NY
Never run out of hot water again. True Quality Plumbing and Heating installs, repairs, and services tankless water heaters across Port Jeff Station and nearby towns. Sized right, piped right, and set up for easy yearly flushing.
How a Tankless Water Heater Works
A regular water heater keeps 40 or 50 gallons hot all day, even when you're asleep. A tankless unit hangs on the wall and heats water only when you turn on a tap. Cold water runs through it, a powerful burner heats it on the spot, and hot water comes out as long as you need it.
Is Tankless Right for You?
| Good reasons to go tankless | Things to know first |
|---|---|
| Hot water that doesn't run out | It heats a set number of gallons per minute. Too many showers at once can drop the temperature. |
| Hangs on the wall and frees floor space | Higher upfront cost than a tank |
| Can last 20 years or more with care | Needs a yearly flush to clear mineral buildup |
| Doesn't keep a big tank hot all day | Often needs a bigger gas line |
| High-efficiency models vent out the side wall with plastic pipe | Needs a nearby outlet for power |
Sizing: It's About Flow, Not Gallons
Tankless units are sized by how many gallons per minute (GPM) of hot water they can make at once. A shower uses about 2 gallons a minute. A kitchen faucet about 1.5. A big unit might make 9 gallons a minute in mild weather.
On Long Island, the water coming into your house is colder in winter, so the heater has to work harder. We size your unit for a cold January morning, not a warm July day.
Why the Gas Line Matters
A tankless heater burns a lot of gas in a short burst. Many homes have a gas line that was sized for a regular tank water heater. If the line is too small, the heater can't get enough gas and throws an error or runs cold.
We check your gas line and meter before we install. If it needs to be bigger, we run a new line, pressure test it, and pull the permit.
Tankless Brands We Install and Service
Navien
Condensing tankless models like the NPE-A2 series (NPE-180A2, NPE-210A2, NPE-240A2) and NPE-S2 series. Navien also makes combi boilers that do heat and hot water in one unit.
Rinnai
Models like the SENSEI RX series. The RX160iN, for example, makes up to 9 gallons a minute and can run on natural gas or propane.
We also service other major tankless brands.
How a Tankless Install Works
Size it.
We count your bathrooms, fixtures, and how your family uses hot water.
Check gas and venting.
We make sure your gas line can feed it and plan where the vent goes out.
Permit.
We file it with the Town of Brookhaven or your village.
Mount and pipe it.
We hang the unit and pipe in the water lines with service valves, so it can be flushed every year without cutting pipes.
Gas and venting.
We connect the gas line and run the venting through the wall or roof.
Condensate drain.
High-efficiency units make a little acidic water. We route it to a drain with a neutralizer so it doesn't damage pipes.
Test and teach.
We fire it up, set the temperature, and show you how it works.
Yearly Tankless Flushing
Minerals in water build up inside a tankless heater over time. That scale makes it work harder and can cause error codes, temperature swings, and early failure.
Our yearly service:
- Close the service valves
- Pump a descaling solution through the unit
- Flush with clean water
- Clean the inlet filter screen
- Check the condensate drain and neutralizer
- Check the venting and gas connections
- Look for error codes
Signs it's due: water temperature swings in the shower, weaker hot water flow, lukewarm water in winter, or popping and whistling sounds.
No service valves on your unit? We can add them so it can be flushed.
Tankless Problems We Fix
| What's happening | Common causes |
|---|---|
| Hot, then cold, then hot in the shower | Scale buildup, low flow, or a clogged inlet screen |
| Error code and no hot water | Ignition, gas supply, venting, or flow problem |
| Lukewarm water in winter | Unit undersized or scaled up |
| Unit won't come on at a small faucet | Flow too low to start it, or a clogged screen |
| Water dripping from the unit | Condensate drain blocked, or a fitting leak |
Other Ways to Get Lots of Hot Water
If you have a boiler, you may have other options:
- Combi boiler: heat and hot water in one wall-hung unit. See Boiler Replacement.
- Indirect water heater: a tank heated by your boiler. See Water Heater Replacement.
We'll help you choose what fits your home.
Tankless Water Heaters Near You
We install and service tankless water heaters in Port Jefferson Station, Terryville, Port Jefferson, East Setauket, Setauket, Mount Sinai, Coram, and Selden.
Tankless is popular with families in East Setauket and Mount Sinai who never want to run out of hot water, and in homes switching from oil to gas.
Tankless Water Heater Questions
Get a Tankless Water Heater Estimate
Call True Quality Plumbing and Heating. Licensed master plumber in Port Jefferson Station.