Conventional Vs. Tankless Water Heaters

February 16, 2024

How Efficient Are Conventional Water Heaters?
Information For Cache, OK, Homeowners

Everything You Need To Know About
Your Water Heater’s Efficiency

Your water heater is a necessity for day-to-day life. It helps heat your shower and do your dishes. It heavily influences the overall comfort of your home. But is the conventional water heater in your Cache, OK home efficient in its energy usage?

Energy efficiency has become a major priority for homeowners, especially with the arrival of energy-saving features such as insulated windows, solar roofing, and tankless water heaters.

Tankless water heaters have become very popular in the last few years, with more and more homeowners questioning the efficiency of their older, conventional water heaters. But what makes the two types so different, especially when it comes to efficiency?

Conventional Water Heaters: Less Efficient
Than Tankless Water Heaters

There are two main types of water heaters: tankless and conventional water heaters with a reservoir of usually 30 or 40 gallons, depending on your household’s water needs.

These water heaters are less durable than tankless water heaters. Conventional water heaters last 12 – 15 years, while tankless water heaters can last up to 30 years. This results in more money and more waste, decreasing energy efficiency.

Conventional water heaters are always on, cycling through to heat and reheat the system. So, regardless of whether or not you’re using the system, it consumes energy, even when you’re out of town.

This results in high energy usage and water bills, regardless of whether you’re using any water or energy.

Why Are Conventional Water Heaters Less Efficient
Efficient Than Tankless Water Heaters?

Tankless water heaters are popular for one main reason – they’re far more efficient. They only heat water instantly when needed, so they don’t waste energy heating a whole reservoir.

They can be installed in more versatile locations than conventional water heaters, allowing them to fit into smaller homes more comfortably.

What Factors Contribute To My Conventional
Water Heater’s Efficiency?

Not all conventional water heaters are the energy-guzzling behemoths of their forebears. There have been many improvements to water heaters over the past few decades, making conventional water heaters better than ever before.


Newer water heaters will always be more efficient than older ones. Modern conventional water heaters are designed with the utmost efficiency in mind, with Energy Star ratings that can guide homeowners in choosing the best water heater for their homes.


Conventional water heaters aren’t “one size fits all.” Choosing the right water heater for your home is a significant factor in getting the most out of it. Larger water heaters use more energy but are necessary for larger homes and households. No one wants the hot water to run out in the middle of a shower!

Our experts at Robinson Air will help you determine which size water heater is right for you. We consider your usage needs, household size, and budget to deliver the best option for you and your household.


Regular maintenance on your water heater and quickly taking care of any issues are key to getting the most out of your water heater.

Pros And Cons Of Conventional Water Heaters

Conventional water heaters have pros and cons, and many homeowners can save energy with their water heaters.


While conventional water heaters are less efficient than tankless ones, they have some upsides.

  • Less expensive than tankless – while conventional water heaters certainly aren’t cheap (close to $3,000), they’re cheaper and simpler to install than tankless water heaters.
  • Energy Star certified models – modern water heaters are designed to be as efficient as possible.


Conventional water heaters have some downsides, which is why so many homeowners are making the switch to tankless.

  • Big and bulky – conventional water heaters, which usually have a 30 or 40-gallon reservoir, take up a lot of space.
  • May not fit household needs – especially if your household size changes during your water heater’s lifespan.
  • Waste energy – since conventional water heaters are always running, some energy is always wasted, even if you aren’t home.

Robinson Air: Cache, OK’s Top Choice For Conventional
Water Heater Installation And Replacement

There’s a reason Robinson is the name to trust in the Comanche County area. Homeowners have trusted us for decades for all their conventional water heater needs. We deliver 24/7 repair service, so if your conventional water heater needs repairs, Robinson Air is there for you – any hour of the day or night.

If you need to repair or replace your conventional water heater, give us a call at (580) 699-5760 or reach out to us online for your free estimate!