Tankless Water Heaters

Next to heating and cooling, water heating is typically the largest energy user in the home.

Next to heating and cooling, water heating is typically the largest energy user in the home.

As homes have become more and more energy efficient during the last 20 years, the percentage of energy used for water heating has steadily increased. A Plumbing Today Technician can help you select the water heater that can best reduce water heating costs and increase comfort in your home.

Selecting a New Water Heater

There are numerous factors to consider when choosing a new water heater, including type, capacity, efficiency, and cost.


While storage water heaters are most common, there are a number of other types of water heaters including Tankless water heaters that may suit your needs.

Tankless Water Heaters

  • Unlimited supply of hot water on demand
  • Typically 30% more energy efficient than a traditional water heater
  • Navien units allows for 98% efficient and trutankless units allow for 99% efficiency
  • On-demand performance reduces water heating costs by up to 50% in most households
  • Copper heat exchanger is coated to prevent corrosion and deterioration increasing the life above ordinary water heaters
  • Low emission technology reduces the CO and NOx emissions making the air inside your home cleaner and healthier
  • Advanced valve system maintains a constant temperature while the digital control panel allows for precise control of the water temperature


Don't buy a water heater bigger than you need. Although some consumers base their purchase on the size of the storage tank, the peak hour demand (or first-hour rating, FHR) is actually more important. The FHR is the measure of how much hot water the heater will deliver in an hour and is required by law to appear on the Energy Guide label. Your Plumbing Today Technician will perform a capacity test to determine the right size water heater for your home.


The energy efficiency of a storage water heater is indicated by its "Energy Factor" (EF). The higher the EF, the more efficient the water heater. The Navien has a 0.98 EF rating and the trutankless has a .99 EF rating.

Other features to look for are tanks with at least 1.5 inches of foam insulation and energy efficiency ratings shown on the Energy Guide labels.


It may be tempting to look for a hot water heater that is inexpensive and ignore the operating cost. This is a poor strategy. Often the least expensive water heaters are the most expensive to operate. A high-efficiency water heater may cost a little more initially, but reduced operating costs will more then make up for the higher outlay. Check the Energy Guide label to help choose an energy thrifty heater.

For more on tankless water heaters or any of our other products and services, please contact us online. Don’t forget to ask us about our exclusive 100% Satisfaction Guarantee!