Water Heater Installation in Dillon, MT
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Dillon asks a water heater to run all year, and the grid isn't always there
Your water heater works every month here, not just in winter. Groundwater coming into the tank starts cold, and on nights averaging 12°F from December through February, it starts colder still. That means more time spent heating each tank before it's ready to use.
Beaverhead County has seen 71 winter storms and 83 damaging wind events over the past ten years, and across Montana, 18% of households lost power for 24 hours or more in 2024. A gas water heater with a standing pilot keeps working through an outage. One that relies on an electronic igniter does not, and neither does an electric tank. Whatever you install, it's worth knowing how it behaves when the power drops, because here it eventually will.
The federal minimum efficiency for a new storage water heater depends on its size, not just its type. Two tanks built the same way can face different minimums simply because they hold different amounts of water. Sizing the replacement correctly is part of meeting that standard, not separate from it.
- 12°F
- the average winter night, and colder incoming water means longer heating
- 18%
- of Montana households lost power for a day or more in 2024, and a heater with an electric element or electric ignition stops without it
NOAA nClimDiv, 1991–2020 normals
- How do I know it's time to replace my water heater?
- Age is the first thing to check. Most tank water heaters are built to last a decade or so, and past that point the tank itself starts to weaken from the inside. Rust-colored water, a tank that's making popping or rumbling noises, or water pooling around the base are all signs the tank is failing rather than something a repair fixes. If yours loses power for a day or more during a winter storm, which happens here often enough to plan for, a gas water heater with a standing pilot will keep working through the outage while an electric one will not heat until power is back.
- Should I switch to a tankless water heater?
- It depends on what you want out of it, not on your current heater failing. A tankless unit heats water on demand instead of storing it, so you get a steady supply as long as the flow rate matches what the unit can handle, and it takes up much less space than a tank. It won't help during a power outage any more than an electric tank would, since the unit still needs power to fire. A contractor can walk through your household's hot water use and tell you whether the switch makes sense for the house.
- What changes when you install a tankless water heater?
- The biggest change is that hot water is made as you use it instead of pulled from a stored tank. That means no more running out of hot water partway through back-to-back showers, but it also means the flow rate matters. A tankless unit is rated for a certain number of gallons per minute, and running multiple fixtures at once can outpace that rating in a way a full tank never would. Venting and gas line requirements are often different from a tank setup too, so the installation itself usually looks different from a straight swap, and a contractor will size the unit and the venting to the house.