Water heater repair in Bismarck, ND

Missouri River water and lime softening

Bismarck's water plant sits beside the Missouri River and draws from two sources, including a horizontal collector well that pulls river water through the sand and gravel beneath the channel. Treatment centers on lime softening in a solids contact basin rated for about 30 million gallons a day, followed by clarification, carbon dioxide to bring the pH back down, rapid sand filtration and disinfection.

Raw Missouri River water carries plenty of dissolved minerals from the plains upstream, and without softening it would scale a water heater quickly. After treatment, Bismarck tap water is moderately hard. Tanks still gather some pale, chalky sediment, and an electric element left for years in the same tank will grow a thin crust, but the buildup is slow compared with the private wells that serve many rural Burleigh County homes.

The Missouri below Garrison Dam is cold even in summer because it is released from deep in Lake Sakakawea. In winter the river runs under ice, and the supply reaching Bismarck homes hangs just above freezing well into March. A water heater here may need to raise water close to 90 degrees to deliver a hot shower, and that sets the tone for nearly every sizing and repair decision.

Basements from the Cathedral District to the north side

Bismarck's oldest homes are in the Cathedral District and the blocks around the State Capitol, where early twentieth century houses have full basements, brick chimneys and heaters that once shared a flue with a coal and later a gas furnace. Many of those flues now serve the water heater alone after a high-efficiency furnace was added, which can lead to weak draft and condensation inside the chimney.

Highland Acres, the hillside neighborhood northwest of downtown, has a large group of mid-century ranches with basement mechanical rooms. Newer development has pushed far north and east, with neighborhoods past the Interstate 94 corridor and along the north end of the city filled with homes built since the 1990s. Those houses usually have finished basements, power-vent or direct-vent heaters, and a sump pit near the mechanical room. In south Bismarck near the river, Fox Island, Hoge Island and Riverwood homes sit on low ground where flood risk shapes where the heater belongs.

The 2011 Missouri River flood

In 2011, record snowpack in the Rockies and heavy spring rain across the northern plains forced the Army Corps of Engineers to send unprecedented releases through Garrison Dam, including the first use of its emergency spillway. The river at Bismarck stayed high for weeks. Nearly 900 homes in Burleigh and Morton counties were evacuated, and low-lying south Bismarck areas such as Fox Island and Hoge Island were among the hardest hit, with groundwater rising into basements even behind temporary levees.

Since then, local agencies have built more permanent levee protection for parts of south Bismarck, but homes near the river can still see seepage when releases run high. Water heaters in those basements belong on a raised stand, and a heater whose gas control or burner was ever submerged should be replaced, not dried out and restarted.

The problems plumbers see most in Bismarck

• Running out of hot water through the coldest months, when the inlet temperature hovers just above freezing and a 40-gallon tank cannot keep pace.
• Lone heaters on oversized chimneys in Cathedral District homes, causing weak draft, backdrafting and rust on the draft hood.
• Frozen or drifted-over sidewall vents that stop power-vent and tankless heaters during blizzards and subzero wind.
• Frozen supply lines in crawl spaces, garages and outside walls during long stretches below zero.
• Worn burners and gas valves on heaters that run almost constantly from November through March.
• Seepage damage to heaters in river-adjacent basements in south Bismarck during high-water years.

Typical water heater prices in Bismarck

Bismarck prices run a little above other midsize plains cities because the cold calls for bigger equipment and because emergency demand spikes during subzero weeks. Chimney relining, gas line upsizing for tankless units, and after-hours calls during a blizzard push the cost up.

North Dakota licensing and Bismarck permits

Plumbers in North Dakota are licensed by the State Plumbing Board, which is headquartered in Bismarck and keeps a public list of licensed contractors. A heater replacement in Bismarck calls for a licensed plumber, a permit and work that follows the North Dakota plumbing code.

Inside city limits, the City of Bismarck's building inspections office issues permits and schedules inspections. Properties in unincorporated Burleigh County go through the county building office, and Mandan and Lincoln handle their own permits. Ask your plumber to confirm which office covers your address and to include the permit in the quote.

Sizing for near-freezing water

When the water entering the tank is 33°F instead of 60°F, a tank delivers far fewer gallons of usable hot water in a busy hour. That is why many Bismarck families who were comfortable with a 40-gallon tank in another state find themselves needing a 50- or 75-gallon model, or a high-input tank with a faster burner. Compare the first-hour rating on the label rather than the tank size alone.

Going tankless can handle Bismarck winters, but only a large unit sized for a 90-degree rise, with gas piping that can carry its full input. Smaller tankless models that work well in warm climates often leave only one shower at a time here in January. Recirculation and long pipe runs in large new homes on the north side add further demand.

MDU and keeping a heater running all winter

Montana-Dakota Utilities, headquartered right in Bismarck, delivers the gas and power for most of the city, and some outer areas get electricity from Capital Electric Cooperative. Natural gas is the standard fuel for water heaters here, and MDU has run conservation rebates at times, and its program page is the place to look before picking a high-efficiency model.

After every blizzard, walk outside and clear snow and frost from the intake and exhaust terminals of any sidewall-vented heater. Insulate the first few feet of the hot and cold lines, keep the basement heated, and know where the gas shutoff and main water valve are. A pilot that goes out repeatedly in high wind, or a burner that won't stay lit, usually traces to a worn pilot part or control, which is cheap to fix compared with a frozen, cracked tank.

Around Bismarck

Mandan, across the Missouri, treats its own river water and has its own permit office. Lincoln, just southeast of Bismarck, is a fast-growing small city with newer homes. Out in rural Burleigh County, houses draw from private wells or a rural water cooperative, usually harder than city water, and areas north of the city along Highway 1804 include river-adjacent subdivisions that faced flooding in 2011.

Water heater questions from Bismarck