Water Heater Installation in Ottawa, IL
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What a water heater in LaSalle County has to handle
Winter nights here average 19°F from December through February, and homes need heat eight months a year, October through May. A water heater in an unheated basement or garage works against that cold every time it recovers a tank of hot water. The colder the incoming water, the longer the burner or element has to run to bring it up to temperature.
Power is worth planning for too. Statewide, 16% of Illinois households lost power for 24 hours or more in 2024, and LaSalle County has seen 19 winter storms and 124 damaging wind events over the past ten years. A gas water heater with a standing pilot will keep making hot water through an outage. One with electronic ignition needs power to light, and most tank heaters come back on by themselves once power returns. Whatever you install, it has to meet the federal minimum efficiency for its size, since the rated volume of the tank sets the standard it has to hit.
- 19°F
- the average winter night, and colder incoming water means longer heating
- 8 months
- October through May, the months homes here need heat
- 16%
- of Illinois 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 $360 a year to run in Illinois compared with an electric water heater.
Estimates for a typical Illinois home, from EIA household energy data and Illinois fuel prices. Your home will differ.
- How do I know it's time to replace my water heater?
- Age is the first thing to check. If yours is old and starting to act up, a repair often just delays the next problem rather than fixing it for good. Watch for rusty water from the hot tap only, rumbling or popping in the tank, or water pooling underneath it. Pooling usually means the tank itself is failing inside, and that is not something a repair can fix. If you are already calling someone out for a leak or no hot water, ask whether replacement makes more sense than another repair.
- Should I switch to a tankless water heater?
- It depends on what you want from it, not on your old tank being old. A tankless unit heats water as it flows instead of storing it, so you do not run out during a long shower or back to back loads of laundry. It also takes up much less space than a tank. What it will not do is deliver hot water instantly at the far end of the house, since the water sitting in the pipe between the unit and the fixture still has to be pushed out first. A contractor can look at the gas line, venting, and how much hot water the household uses at once to say whether tankless is worth it here.
- What changes when you install a tankless water heater?
- The biggest change is that hot water gets heated on demand instead of stored, and the unit needs enough gas supply and the right venting to do that. Many homes need a larger gas line run to the unit, since tankless heaters draw more gas at once than a tank does. Venting is different too, since tankless units typically vent through PVC or similar pipe rather than the metal flue a tank uses. Because of this, installation is more involved than swapping one tank for another, and a contractor needs to check the gas supply and venting path before quoting the job.