Tank or tankless? That is the question

March 10, 2017 | by Steve Arel

Photo by Noritz

To use a tank, or to go tankless?

For many building owners, that’s a dilemma they face when it comes to meeting operational water needs and boosting efficiency.

A recent video by Noritz, a leader manufacturer of tankless products, helps facility owners make a choice. The video lays out the differences between tank and tankless systems, the efficiencies of each and credits that are available for going with green technology.

Hot water usage in commercial operations is similar to that in residential settings in that users want it on-demand. The difference is that demand often is constant.

The constant and immediate need for hot water has made tankless systems increasingly popular and run the gambit, from multifamily units to laundries to jails.

Those users – most of which rely on boilers to heat reserve tanks – prove expensive and inefficient. An energy efficient tankless heater, according to Energy.gov, can save about $100 annually over a traditional tank.

Considering that commercial operations tend to use multiple water heaters, that savings can be considerable with a tankless switch.

Those businesses “ don’t have a choice but to continue to heat constantly,” said Andrew Tran marketing manager for Noritz. “Although they’re using hot water constantly, the efficiency to heat such a large reservoir of water requires more energy to keep it at a certain temperature than flash heating it.”

Today’s tankless water heaters are designed around efficiency, to give owners hot water at an affordable cost. Because of their efficiency levels, many tankless systems qualify for federal and state rebates, as well as help facilities rack up points toward certification under the Leadership in Energy and Environmental Design (LEED).

Thanks to the modulating technology, a commercial system heats water using only the energy necessary to meet the demand, reducing energy consumption significantly and saving on water heating costs.

Essentially, tankless units take turns shouldering the load. When one unit reaches its maximum load, another turns on, equalizing the functionality to where both units operate at 50 percent capacity.

“That’s where the cost savings comes in because they’re not constantly running at capacity,” Tran said.

For a more in-depth look at the benefits of tankless water heaters, click here.

 


Topics: Architectural Firms, Automation and Controls, Building Owners and Managers, Construction Firms, Consulting - Green & Sustainable Strategies and Solutions, Energy Saving Products, Great Commercial Buildings, Tankless Water Heaters, Technology, Water Heating Strategies, Water Saving Strategies and Devices

Companies: Noritz


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