Tankless Water Heater in Montclair, CA

Many Montclair houses date to the post-war building boom, so a tankless conversion here often involves a new vent and a larger gas line, not just a new heater. Water comes from Monte Vista Water District and permits go through the City. Call the number on this page to be connected with a local plumber in Montclair.

Wall-mounted tankless water heater with copper and PEX lines in a bright laundry room, tankless water heaters in Montclair, CA

Signs to look for

The tank heater is original or close to it and shows rust at the top fittings
Hot water runs out before the dishwasher and a shower can finish
A pilot light that goes out often, or a burner flame that looks lazy and yellow
You are already opening walls for a remodel and want to free up space

Montclair conditions

Montclair grew out of former citrus groves after World War II, and its median home was built in 1969. In houses of that age the water heater commonly sits in a garage or a hall closet, vented through the same flue as the furnace, with a half-inch gas branch that was sized for a tank. A gas tankless unit cannot share that flue. It needs its own sealed vent through a wall or the roof, and its burner can demand far more gas than the old heater, so the pipe from the meter usually gets a close look.

The City of Montclair itself advises owners of older homes to have a plumber check for problems such as pipe corrosion. A tankless install is a good moment to do that, since the plumber is already at the supply and gas lines. Water service comes from Monte Vista Water District at (909) 624-0035, while sewer is a separate City account. MVWD's water quality report lists the hardness, so it is the place to check before you decide on scale treatment.

Call now to be connected with a local plumber in Montclair.

(951) 489-1530

What affects cost

Gas piping: older homes often need a larger line from the meter
Venting: abandoning a shared flue and adding a dedicated vent
Supply lines: corroded galvanized connections near the heater may need replacing
Condensate handling: needed with condensing models
Electrical: a nearby outlet for the unit's controls

What happens when you call

The call puts you in touch with an independent plumber who serves Montclair. They will ask how old the house and heater are and where the gas meter sits. Permits go through Montclair's Community Development Building Department at (909) 625-9477; walk-in counter hours are 7:00 to 9:00 a.m. and 4:00 to 5:30 p.m. If you smell gas, get out of the house first, then phone 911 and SoCalGas at 1-800-427-2200.

Tankless Water Heaters questions in Montclair

Is an older home a good fit for a tankless heater?

It can be. Montclair's median home was built in 1969, so expect the plumber to check the gas line size, replace a shared flue with a dedicated vent and look at aging supply piping near the heater.

Where does a tankless water heater vent?

Through its own sealed vent, never the furnace flue older Montclair homes often use. Condensing units vent with plastic pipe; non-condensing units need stainless steel vent pipe.

How do I find out how hard my water is?

Montclair's water comes from Monte Vista Water District, which publishes an annual water quality report. You can also call MVWD at (909) 624-0035.

Do I need a permit to switch to a tankless water heater?

Yes. The City of Montclair Building Department handles permits and inspections; the department line is (909) 625-9477.