Lansing Heating And Cooling

Differences Between Gas Water Heaters and Tankless Water Heaters

HVAC Repair Lansing, MI

Are you considering water heater replacement in the near future? If so, you’re probably concerned with getting all the information you need to make the right decision for your home’s heating and cooling system.

This guide will help run you through some of the main differences between gas water heaters and tankless water heaters. For more information, we recommend you contact an experienced heating system contractor in your area.


While many homeowners are attracted to the idea of an unlimited hot water supply in their homes, many are not able to afford installation. Please keep in mind that a licensed heating and cooling contractor may need to retrofit your new water heater to make sure it plays nice with the rest of your heating and cooling system, electrical system, and plumbing. Make sure you understand the full cost of tankless water heater installation before moving forward.


A gas water heater has a tank, which means that water is continuously heated in order to supply hot water to your home. However, when the hot water supply runs out, it takes awhile for it to replenish itself. Are you tired of having family members use up all the hot water by taking long showers? A tankless water heater may be the solution you have been looking for.

Like the name suggests, tankless water heaters don’t have tanks. This means that they only heat up water when it is in demand. Demand water heaters help ensure that you never run out of hot water. Never again will you have the unfortunate experience of running out of hot water in the shower. Tankless water heaters only produce as much hot water as you need, when you need it.

Before tankless water heater installation, be sure that you understand that you will still have to wait for the water to get hot whenever you turn on the faucet. Despite the common misconception, tankless water heaters don’t give you immediate hot water. Instead, they simply heat up water when you need it and ensure you don’t run out.

Energy Savings

A storage water heater is constantly using energy to keep the water in the tank heated. However, tankless water heaters don’t require constant heating. They only heat when hot water is needed in your house. While this may not seem like a big deal at first, the energy savings will become more noticeable over time.

The average lifespan of a demand water heateris approximately 20 years. This means that you could enjoy significant energy savings over the course of two decades. Tankless water heaters are recommended for homeowners who plan on staying in their homes for many years to come.

Life Expectancy

You can expect your gas water heater to last you and your family approximately 10 years. However, tankless water heaters can last more than 20 years with regular maintenance from a reputable heating and cooling contractor.


Many homeowners appreciate the smaller model sizes of tankless water heaters in comparison to gas water heaters. Smaller HVAC units make it easier for service repairmen to access your newly installed tankless water heater. While a smaller water heating system won’t make a huge difference for opening up space in your basement or utility closet, it will still help your basement feel more spacious.

If you are interested in our water heater installation services, please feel free to give us our Lansing MI heating system contractors a call at (517) 485-9437. The licensed HVAC technicians at Block Sloane Heating & Cooling work hard to make sure your new water heater unit lasts for as long as possibility through quality maintenance services.