Water Heater Installation in Thornton, CO
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What Thornton winters ask of a new water heater
Your water heater works alongside your furnace from October through May, eight months a year. On winter nights averaging 16°F, incoming water is colder for longer, so the unit runs harder to bring it up to temperature, and it does this for most of the year, not just a few weeks.
Adams County sees real storms, 50 winter storms and 85 damaging wind events over the past ten years, and 13% of Colorado households lost power for 24 hours or more in 2024. A gas water heater with a standing pilot keeps working through an outage. An electric one, or a gas unit with electric ignition, will not. Whatever you install, it has to meet the federal minimum efficiency for its size and type, since the standard is set separately for each tank volume and draw pattern rather than as one number for all water heaters.
- 16°F
- the average winter night, and colder incoming water means longer heating
- 8 months
- October through May, the months homes here need heat
- 13%
- of Colorado 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 $370 a year to run in Colorado compared with an electric water heater.
Estimates for a typical Colorado home, from EIA household energy data and Colorado fuel prices. Your home will differ.
- How do I know it's time to replace my water heater?
- The clearest sign is age. Most tank water heaters have a working life of only so many years, and once yours is old, a repair just delays a replacement you'll need anyway. Watch for water pooling around the base of the tank, since that usually means the tank itself is failing from the inside and no repair fixes that. Rusty or metallic-tasting hot water, popping or rumbling sounds, and hot water that never gets as hot as it used to are all signs the tank is on its way out. If yours sits in an unheated garage or basement, keep in mind winter nights here average 16°F, and a tank that's already struggling will show its age faster in that cold.
- Should I switch to a tankless water heater?
- It depends on what you want out of it, not on whether your current tank is failing. A tankless unit heats water only when you turn on a tap instead of storing a tankful ready to go, so you get a steady supply without running out partway through a shower. It also takes up much less space than a tank. The tradeoff is that installation is more involved than swapping one tank for another, since the gas line, venting, and sometimes the electrical setup need to be different. A contractor can look at your home and tell you what switching would actually involve for your setup.
- What changes when you install a tankless water heater?
- The biggest change is that the unit heats water only when a tap calls for it, instead of keeping a tank full and ready. That means no more running out of hot water, but flow rate matters more, since the unit has a limit on how much water it can heat at once if you're running two showers and a dishwasher together. Venting is different too, since tankless units often need their own dedicated vent rather than sharing a flue with another appliance. Gas line sizing can also need to change, because a tankless unit draws more gas at once than a standard tank does. A contractor can check your gas line, venting, and water usage to tell you what your home would need.