Water Heater Installation in Pekin, IL
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A new water heater here needs to handle eight months of real demand
Homes in Tazewell County need heat from October through May, eight months a year, and your water heater is working the whole time, warming water that comes in cold from December through February when nights average 20°F. That is most of a year spent heating from a colder starting point, not a short stretch of it.
Power is part of the picture too. Illinois saw 16% of households lose power for 24 hours or more in 2024, and this area has logged 154 damaging wind events and 10 winter storms over the past ten years. A gas water heater with a standing pilot keeps working through an outage. One with electric ignition will not light until power is back. Whichever type goes in, it has to meet the federal efficiency minimum, and that minimum is not one number. It is set by a formula tied to the tank's rated volume and applied differently across four draw patterns, so the right minimum depends on the size and how much hot water the household actually uses.
- 20°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?
- Look at the age first. Most tank water heaters have a working life of somewhere close to a decade, and once a tank is old, a repair is a bet against a machine that's already worn. Rust-colored water from the hot tap, a tank that's damp or sweating at the base, or water pooling underneath are signs the tank itself is failing, and a tank cannot be patched. If the heater is still fairly young and the problem is no hot water or lukewarm water, that's more likely the thermostat or the heating element, and those are worth having a contractor look at before you replace anything.
- Should I switch to a tankless water heater?
- It depends on what you want out of it, not on your current heater being old. A tankless unit heats water as you use it instead of storing it, so you don't run out partway through back-to-back showers or a full load of laundry, and it keeps working as long as it has power and fuel, not a tank's worth of hot water sitting in reserve. What it doesn't do is fix a house's water pressure or its pipes. A contractor can tell you whether your gas line and venting can support one, since that's what usually decides if the switch makes sense for a specific house.
- What changes when you install a tankless water heater?
- The biggest change is that hot water doesn't run out. A tank holds a fixed supply and empties, but a tankless unit heats water on demand, so a long shower doesn't take hot water away from the dishwasher running at the same time. Installation itself usually means new venting, since tankless units vent differently than a tank does, and sometimes a larger gas line to supply the burner. It also frees up the floor or closet space a tank used to sit in, which matters in a smaller utility area.