So, your water heater is on its last legs, and now you're faced with a big decision: stick with a traditional tank water heater or make the leap to a tankless model?
It’s kind of like choosing between a trusty old sedan and a sleek, fuel-efficient electric car—both get the job done, but in very different ways. Let’s break it down so you can make the best choice for your home (and your wallet).
How They Work: The Basics
Tank Water Heater
A traditional tank water heater is like an oversized thermos for your house. It keeps a large amount of water (usually 40-80 gallons) heated at all times, ready for you to use.
The problem? If you use up that hot water (think long showers), you have to wait for the tank to refill and heat up again.
Pro Tip: If you have a big family, think about a larger tank or a high-recovery model to avoid morning shower battles for warm water. Nobody likes a cold surprise in the shower.
Tankless Water Heater
A tankless water heater, on the other hand, only heats water when you need it. Instead of keeping a reservoir of hot water, it uses high-powered burners to instantly heat water as it flows through.
That means you never run out—unless, of course, you try to run multiple showers, the dishwasher, and the washing machine all at once.
Pro Tip: If your house has a high demand for hot water, consider installing multiple tankless units or a hybrid system to keep up with the demand.
Energy Efficiency: Which One Saves You More Money?
Tank Water Heater
Since tank water heaters are constantly heating water, they use more energy—even when you’re not home. That means you’re paying to keep water hot, even when you don’t need it.
Think of it like leaving a pot of soup on the stove all day just in case you get hungry later. Not the most efficient, right?
Pro Tip: Lowering your tank water heater’s temperature to 120°F can reduce energy costs without sacrificing comfort, and your wallet will thank you.
Tankless Water Heater
Tankless heaters are about 24-34% more energy-efficient than traditional tanks because they only heat water on demand.
That means lower energy bills over time. However, they do cost more upfront, so you’ll need to weigh the long-term savings against the initial investment.
Pro Tip: If you're planning to stay in your home for a long time, a tankless water heater can pay for itself through energy savings within a few years.
Installation & Space Considerations
Tank Water Heater
These are bulky. A traditional water heater takes up a decent amount of space in your basement, garage, or utility closet. If you have the room, no big deal.
If you’re tight on space though, that big tank can be a bit of a nuisance.
Pro Tip: If your tank is over 10 years old, start thinking about replacement before it fails. The last thing you want is a surprise indoor swimming pool.
Tankless Water Heater
Tankless water heaters are small and wall-mounted, freeing up floor space.
However, installation can be more complex, especially if you're switching from a traditional tank. You might need upgraded gas lines or electrical work, which can add to the upfront cost.
Pro Tip: If you’re doing a major home renovation, it’s a great time to switch to a tankless system since you’ll already have contractors on hand.
Hot Water Supply: Do You Ever Run Out?
Tank Water Heater
Once you use up the hot water in your tank, you’re out of luck until it heats up again. That means if you’re last in line for a shower in a big household, you may be in store for a lukewarm shower.
Pro Tip: If running out of hot water is a daily struggle, consider a larger tank or a tankless upgrade. No one likes a cold shower—except maybe your overly enthusiastic gym coach.
Tankless Water Heater
Technically, tankless heaters provide unlimited hot water—but only up to a certain point.
If too many appliances demand hot water at once, the system might struggle to keep up. That’s why it’s important to get a unit sized properly for your home’s needs.
Pro Tip: If you have a large household, consider a higher-capacity tankless model or multiple units to ensure enough hot water for everyone.
Cost: What’s the Damage?
Tank Water Heater
The good news? Traditional water heaters are cheaper upfront, typically ranging from $800-$1,500 installed.
The bad news? They have a shorter lifespan (about 8-12 years) and higher long-term energy costs.
Pro Tip: Regularly flushing your tank water heater can extend its life and improve efficiency. Think of it as giving your water heater a mini rest day.
Tankless Water Heater
Tankless models are pricier upfront, usually between $2,500-$4,500 installed, but they last longer (about 20 years) and are more energy-efficient. Over time, they can save you money on energy bills.
Pro Tip: If cost is a concern, check for rebates or tax incentives for installing energy-efficient appliances in your home. Free money is always a win.
The Verdict: Which One Should You Choose?
Go with a Tank Water Heater if: You want a lower upfront cost, don’t mind occasional cold showers, and have the space to store a large tank.
Go with a Tankless Water Heater if: You want energy efficiency, unlimited hot water, and a long-lasting system—even if it means a higher initial investment.
Still not sure? Venture Plumbing can help you figure out the best option for your home. Contact us today to discuss your needs and schedule an installation. Because no one deserves to start their day with an unexpected ice bath!