Water Heater Installation in Rock Springs, WY
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Ten months of heat, and winters that hit 11 below zero
Rock Springs asks for heat from September through June. That is ten months a year your water heater is working alongside the furnace, both drawing on the same gas line or the same electrical panel. Winter nights average 11°F here, and cold groundwater means the tank has to work harder to bring water up to temperature, whatever fuel it runs on.
Sweetwater County has seen 87 winter storms and 185 damaging wind events over the past ten years, and across Wyoming 8% of households lost power for a full day or more in 2024. A gas water heater with a standing pilot stays lit through an outage. One that relies on electronic ignition will not fire until the power is back. Either way, a new installation has to meet the federal efficiency minimum for its size and type, which is set separately for each tank volume rather than as one number for every heater.
- 11°F
- the average winter night, and colder incoming water means longer heating
- 10 months
- September through June, the months homes here need heat
- 8%
- of Wyoming 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
A heat pump water heater would save about $300 a year to run in Wyoming compared with an electric water heater.
Estimates for a typical Wyoming home, from EIA household energy data and Wyoming fuel prices. Your home will differ.
- How do I know it's time to replace my water heater?
- If your tank is old and giving you trouble, that combination is the real signal, not age by itself. Rusty water, a tank that's damp or wet at the base, and a pilot light or igniter that keeps failing all point to the tank wearing out rather than one part failing. A tank rusting from the inside only gets worse, and a leak from the seam can't be repaired. If your water heater sits in an unheated space, keep in mind winter nights here average 11°F, and a tank that fails in that cold leaves you without hot water at the worst time.
- Should I switch to a tankless water heater?
- It depends on what you want from it, not on your old tank failing. A tankless unit heats water on demand instead of storing it, so you don't run out partway through a shower, and it keeps running as long as you need it. It won't sit there losing heat overnight the way a stored tank does. The tradeoff is that a tankless unit needs a gas line, venting, and sometimes electrical work sized to it, and not every home already has that in place. A contractor can look at your gas line, venting, and where the unit would go, and tell you what switching would actually involve in your house.
- What changes when you install a tankless water heater?
- The biggest change is that you stop storing hot water and start heating it as you use it. That means no standby heat loss, and no tank to run out during back to back showers or laundry and dishes at the same time. It usually calls for a larger gas line and its own venting, since a tankless unit draws more fuel in the moment than a tank does. Some households also notice the water takes a moment longer to reach full temperature at the tap, especially on the first draw of the day. Most tankless units need electricity to ignite and run, so a power outage means no hot water from it, same as with most powered tanks, which is worth knowing given how often storms roll through this area.