Proudly Serving Central Maryland

Back to Blog

Tank vs. Tankless Water Heaters in Baltimore County, MD

Save Time, Call Prime!

A water heater impacts your life in more ways than you think. Imagine being in the middle of a relaxing and warm shower, your hair covered in shampoo, and suddenly the water turns freezing cold. And if you have several roommates or a large family living under one roof, you may find yourself having to schedule your showers around the valuable hot water supply.

Since water heaters can be an expensive investment for homeowners, it is important to know when it’s time to replace your old water heater or change the type of model you use. You should consider the efficiency, cost, and longevity of a new water heater. Although traditional storage tank water heaters are still the most common type, tankless water heaters are becoming more popular.

Traditional Water Heaters

Standard water heaters store and heat water in a reservoir. Typically, the insulated tank has the capacity to hold between 30 and 50 gallons of water. The preheated water in the reservoir is used when someone showers, washes dishes, or does anything involving hot water. As the hot water is used up, the storage tank refills and is reheated again.

Pros of Traditional Water Heaters

  • A storage tank water heater operates more simply compared to a tankless water heater which means its installation and repair costs are often less than that of a tankless heater.

Cons of Traditional Water Heaters

  • Traditional water heaters are bigger, bulkier, and harder to place than their tankless counterparts.
  • These heaters often have a shorter useful life compared to tankless ones. They typically last for 8-12 years. As a result, they may have to be replaced nearly twice as often as tankless heaters.
  • With a traditional heater, the capacity is limited and, as a result, you run the risk of having hot water run out while you’re using it.
  • Storage tank heaters repeatedly heat and reheat water at a pre-defined temperature regardless of your water usage. This can increase your utility bill—particularly during the winter.

Tankless Water Heaters

As the name suggests, a tankless, or on-demand, water heater does not store water in a tank. They heat the water on demand using gas or electric coils as the water passes through the unit. This feature eliminates the standby energy losses that you incur with a storage tank.

Pros of Tankless Water Heaters

  • Perhaps the greatest benefit of using a tankless water heater is they are extremely energy efficient and require little to no upkeep which often means lower utility bills and maintenance costs.
  • They are smaller and can be easily installed in tight spaces or on the exterior walls of your house.
  • Theyare capable of providing 2 to 3 gallons of on demand hot water each minute.
  • If maintained properly, tankless heaters can last for 20 to 30 years, nearly twice the life of most storage tank heaters.
  • They can provide unlimited hot water so long as they are operating within their normal capacity.
  • Tankless water heaters often offer longer warranties.

Cons of Tankless Water Heaters

  • The upfront costs for tankless heaters are higher than those of traditional heaters but, as a result of their energy efficiency, save you money over time.
  • If you are simultaneously running too many appliances that use hot water, there is a chance the heater will fail to meet your hot water demands for every device.

Find the Right Water Heater

Get help selecting the right water heater

Prime Plumbing has the tools and knowledge to work on all heating systems, including tankless water heaters. We carry tankless heaters from leading brands Navien and Rinnai, giving you options and the ability to find the heater that’s right for you. Your friendly neighborhood plumber, we can tackle all your plumbing needs quickly, efficiently, and professionally. Call today to install, repair, or replace your water heater. Don’t get left out in the cold!

WHAT TO EXPECT

The Difference With Prime

About Us

Locally owned & OPERATED; Founded IN 2012

We take the worry out of things with upfront pricing

OPTIONS TO HELP YOU finance any service needed

Licensed Technicians who treat your home with care

Our maintenance plans make you the priority

Discount pricing for active and retired militaRy personnel

Locally owned & OPERATED; Founded IN 2012

We take the worry out of things with upfront pricing

OPTIONS TO HELP YOU finance any service needed

Licensed Technicians who treat your home with care

Our maintenance plans make you the priority

Discount pricing for active and retired militaRy personnel

    Get a FREE second opinion on water and sewer service, and septic repair/replacements!

    About Us

    Don’t Just Take Our Word for it

    More Reviews
    Great work! Very nice service; fixed our water heater issue and had us back up and running in no time. The service provided by Ernie and Hayleigh was very professional and courteous.
    fred pletz
    2 days ago
    [UPDATE: RESOLVED] I'm updating this review to reflect that Prime Plumbing has owned up to the situation and made it right. Once my new toilet arrived, they returned and completed the installation at no additional cost to me. The 5-stars are for Ernie and Hailey who handled the final install, and they were a complete 180 from my previous experience. They were awesome, professional, and sociable. You could tell they actually enjoy their work and take pride in it. They got the job done right. While the road to get here was frustrating, I appreciate the company standing by their work and sending the right team to finish the job. [OLD REVIEW] I hired Prime Plumbing to fix a toilet leak, and after 4 visits and hundreds of dollars, I had to do their work for them. Here is the timeline of negligence: March 27, 2025 (Invoice #90891): I paid an $89 trip fee to have a technician come out. He did a visual glance without even lifting the toilet and told me "nothing was wrong." The leak continued. Nov 1, 2025 (Invoice #97073): I paid $634.56 for a "Toilet Pull and Reset" (Service Code TUR-110). The invoice states they would "prepare the mounting system." They claimed the issue was a decayed wax seal (after initially guessing "condensation"). They did not inspect the toilet for cracks, but they didn't miss the opportunity to try and upsell me a new water heater. The leak continued. Nov 24, 2025 (Return Call): When they came back, the technician tried to blame "condensation" again and claimed "these electric toilets aren't reliable", again making excuses. He replaced the wax seal again without inspecting the toilet. Nov 30, 2025: The leak returned. Before booking them again, I spent 1.5 hours doing what they should've done. I replicated the leak and reached behind the toilet to feel the failure point. I felt the wax ring and—crucially—I felt plastic obstructing the seal. Dec 1, 2025 (Invoice #97936 Return Call): The tech arrived, and I told him what I found. He told me, "That's impossible... Show me how you did it. Show me this magic." I had to literally get on the floor and prove it to him. I ABSOLUTELY should not have had to do his job for him. He then complained about how he "can't keep coming out here" and is "losing money." Completely unprofessional. He finally pulls the toilet up, actually inspects it, and finds a crack. He sounded gleeful showing it to me, acting like this vindicated his misdiagnosis. He then told me I need to pay a third time to have a new toilet installed. THE REALITY: Did he inspect it the first time? If he did and saw no crack, then he caused the crack by mishandling the toilet. Did he not inspect it? Then the crack was there the whole time, and due to his incompetence, he misdiagnosed the issue for months while taking my money. I paid premium pricing for a professional diagnosis and fix. Instead, I got laziness in March, incompetence in November, disrespect in December, and an issue that wasn't fixed. Now they want more money to fix the issue they likely caused. Avoid this company unless you want to do the plumbing yourself after paying the bill. When my new toilet arrives, I will be reaching out to them to complete the install of the toilet at no additional cost to myself (I am not asking for a refund on the cost of a toilet, just want them to install it properly.) Otherwise, this is definitely going to be a complaint to the MHIC.
    Justin Jones
    2 days ago
    Ernie and Hailey are absolute legends! I cannot say enough good things about Ernie and Hailey! I hired them to install a new toilet, and they turned what is usually a mundane maintenance appointment into a genuinely great experience. From the moment they arrived, the service was top-tier. They were incredibly professional and got the installation done flawlessly, but what really stood out was their attitude. They were sociable, friendly, and you could tell they actually have fun on the job. They have a great dynamic and brought such positive energy into my home while working. It is rare to find a team that combines expert workmanship with such a great "vibe." If you need plumbing work done and want it done right by good people, ask for Ernie and Hailey. 10/10 would recommend!
    Oanh Jones
    2 days ago
    Paul was awesome fixed my issue right away! Prime plumbing came out the same day !
    Sasha spalding
    3 days ago
    Very professional and courteous Friendly would recommend this company
    kathryn matthews
    3 days ago

    Why Choose Prime Plumbing?

    Professional Services at an Affordable Price

    • Transparent Pricing
    • No Additional Charges for Overtime
    • Flexible Financing Solutions
    • Thorough Employee Background Checks
    • Complimentary Second Opinions
    Learn More