It usually begins with a low rumble from the garage when the burner fires, or a shower that turns lukewarm sooner than it used to. In a Covina home, that's most often a tank carrying years of hard-water sediment. Sometimes it's a damp patch in a hallway closet, which needs attention sooner because of where the water goes.
Where Covina heaters live
- Rear closets, porches and detached garages: older homes near downtown.
- Attached garages and exterior closets: the post-war neighborhoods.
- Interior and hallway closets: apartments, condos and some remodeled houses.
Covina's homes and heaters
Covina was founded in 1884 and incorporated in 1901, and for decades it was a citrus town whose downtown served the surrounding valley. As the citrus industry faded in the 1940s and 1950s, the groves were sold and replaced by housing, and Covina became the suburban city it is today. Its historic downtown, with its early commercial buildings, still anchors the older streets around it, where houses from the town's first decades stand beside later infill. Beyond them, the post-war tracts that replaced the groves fill most of the city, broken up by apartment and condominium complexes along the main roads. This page covers three ZIP codes.
Most homes heat water with gas, in garages and exterior closets. Apartments and condominiums add interior closet heaters, gas or electric, and remodels have moved some heaters indoors. Many homes are several heaters in by now, and each replacement has had to fit a space first laid out for a smaller tank. The water is hard, so sediment and anode wear shape how long tanks last, and a heater that has gone years without a flush tends to announce itself with noise before it leaks.
Hard water in Covina
Covina's water is hard. When it's heated, calcium and magnesium drop out and settle on the tank floor as sediment. The layer grows month by month, traps pockets of water that flash to steam under the burner, which is the rumble you hear, and keeps heat from reaching the water, so the steel runs hotter and wears out sooner. It also crowds out space meant for hot water.
Electric tanks, common in apartments, grow scale on their elements until they fail. Tankless units collect scale in the heat exchanger and throw error codes until they're descaled through service valves.
Hardness depends on the supply and can change as sources are blended; your water provider can tell you about yours. Covina owners get the most from steady maintenance: flushing while sediment is still loose, anode checks every few years and descaling for tankless units. A tank left untouched for many years is handled cautiously, since disturbing old sediment can start leaks at the drain valve.
Catch sediment and anode wear early.
The anode rod
Screwed into the top of every steel tank is an anode rod, a long metal rod made to corrode so the tank doesn't. While it has metal left, the lining is protected. Once it's used up, corrosion moves to the tank itself, and rusty hot water or a leak follows.
Hard water wears anodes steadily, and softened water often wears them faster still. Signs of a spent anode include rust-tinted hot water, a sulfur smell from the hot taps and a tank several years old that has never had its anode checked.
Swapping an anode on a sound tank is one of the best-value jobs in water heater care. Anodes come in magnesium, aluminum and powered versions, and segmented rods suit spots where the ceiling above the heater is low, as in some Covina closets. The worn rod shows the technician how fast your water consumes it, which sets the timing for the next check.
Interior and hallway closets
When a heater sits inside the living space, as in Covina's apartments, condos and some remodeled houses, a leak matters more. Water can reach finished flooring, walls and, in a multi-story building, the unit below. A drain pan with a route to drain is valuable, and a slow drip deserves attention right away rather than at the next service.
A gas heater in an enclosed closet still needs combustion air, through louvers, openings or ducts, and that supply has to stay clear of laundry and stored items. Fit and access are tighter than in a garage, so a replacement is planned around the door, the hallway and any stairs. The new tank has to pass through the same openings the old one came out of, and an upstairs unit means carrying a drained tank down and a full-size one up. In condos and apartments, the building's owner or association may also have rules on when work happens and who is responsible for the closet.
Some owners consider moving an indoor heater to the garage or switching to a tankless unit on an outside wall. That involves new gas, water and venting runs, so it's a bigger job than a straight swap, but it can free the closet and move leak risk outside.
Roomy garages often suit one.
Strapping Covina heaters
California installations are secured with straps or a bracing kit because a full tank is heavy, top-heavy and connected by gas, water and vent lines that shouldn't be pulled apart if the ground moves. Covina replacements almost always include it, and inspectors check it at sale.
Garage walls give the straps solid studs to anchor into. A rear closet in an older home, an interior closet or an exterior closet may need blocking so the straps don't rely on drywall. A wider new tank usually means new straps, and flexible gas and water connectors round out the job. Around Covina, an older heater that has no straps can still be braced in place, and the installer notes what was found. Where an older home has a heater on a porch or in a detached garage, the wall behind it may be original framing, and the installer checks what the straps will grip before drilling. Ask how the heater will be fastened before work begins. The installer confirms the local requirements for your address.
Care by location
Garages: keep fuel and solvents away and a path clear. Exterior closets: keep louvers open. Interior closets: keep the drain pan clear and act on drips quickly.
Covina ZIP codes
ZIP codes served: 91722, 91723, 91724
Nearby cities with their own pages include West Covina, Glendora, Azusa, San Dimas and Baldwin Park. See the Los Angeles Metro page for the rest.
Popular services in Covina
Covina water heater FAQs
It depends on what failed and on the tank. A worn igniter, thermocouple or element on a dry, solid tank is usually worth fixing. Seepage from the tank body isn't. On an older Covina tank with heavy sediment or rust, replacement is often better value.
Normally, yes. Removing the old heater is usually part of the job, and it's drained first so it can be carried out. Old tanks are generally recycled for their steel. If the heater is in an interior closet or upstairs, mention the route so the crew plans for it.
Typical causes are a worn thermocouple or flame sensor, a dirty pilot, drafts through the garage door or a venting fault. A pilot that keeps failing needs a technician rather than repeated relighting. If you ever smell gas, leave and call the gas utility and 911 from outside.
Often, but measure first. Newer tanks are generally better insulated and so wider than the originals in Covina's post-war closets. The installer checks the opening, door, shelf and vent, and suggests a slimmer model or a tankless unit if a standard tank won't fit.
Usually. The places to watch are closets built for smaller tanks, interior closets in older homes and tight spots between laundry hookups. The installer measures the space, checks the vent and connections, and explains any changes to the closet or piping before recommending a unit.
Either demand has grown or the heater has lost capacity. Sediment, a broken dip tube or a failing part can all shrink the supply. A technician rules those out first, then compares the busiest hour of use with the heater's first-hour rating before recommending a larger unit.
Sediment keeps building, the anode rod is consumed and the tank rusts from inside, often failing years early. Drain valves clog and relief valves can stick. In Covina's hard water, a neglected tank usually ends with a leak rather than a gentle warning.
It may be. Older homes around the historic downtown were built before attached garages were standard, so heaters can sit in a rear closet, on a porch or in a detached garage. Describe the location when you call so the technician plans for access.