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New tankless water heater installed on a green tile wall.

Water heaters are an essential part of your plumbing system. Without them, you wouldn’t have hot water for showering, laundry, or washing dishes.

Conventional water heaters are designed to heat water within a large tank, and it is dispersed when you need it. However, these water heaters contain a limited amount of hot water. After the water is gone, it takes time for the tank to fill up and the water to be heated once again.

However, with tankless models, you don’t have this problem.

Tankless water heaters are an innovative alternative to conventional water heaters. While traditional models are reliable and designed to last for many years, tankless water heaters come with some additional benefits.

Tankless hot water heaters provide hot water on demand, just like traditional water heaters, but they also never run out of hot water. This is because tankless water heaters are essentially devices that heat running water as it’s running through the pipes.

Tankless water heaters are installed at the source of the water output. They are much smaller than traditional water heaters and therefore, take up significantly less space. Tankless water heaters are also more energy efficient, because they don’t need to continuously heat water so it’s ready when it leaves the tank. Instead, they heat water only when you are using it.

How Long Does A Water Heater Take to Heat Up

If you have a traditional water heater, it can take a little while for the water to heat up again if it runs out. However, if you have a tankless water heater, the water is only heated when it’s running and passes through the heating system to reach your sink, shower, washing machine, etc. It takes about 15 seconds for a tankless water heater to heat the water.

How Long Does A Tankless Water Heater Last

Tankless water heaters last an average of 20 years with proper maintenance.

Standard and Tankless Water Heater Services in Illinois

If you are interested in upgrading to a tankless water heater, or your existing one has finally reached the end of its lifespan, then it’s time to contact the team at Allied Air Conditioning & Heating Corp.

When you are looking for quality water heater service in Palatine, such as repairs and installation, from trusted HVAC professionals, you can rely on us. Contact us today to schedule a service call—we are available 24/7 for all your heating and cooling needs.


Interested in a boiler for your home or commercial space? Allied Air Conditioning & Heating Corporation partners with IBC and Carrier brands to not only ensure the right fit for any demand but outstanding reliability and lasting performance.


Through our relationship with Wells Fargo Bank, N.A., participating HVAC dealers offer a variety of flexible options for financing your new HVAC product or system. That way, you can invest in your home’s comfort without breaking your monthly budget.

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