High Efficiency Water Heaters

NAECA 2015 – What Does It Mean To You?

Big changes are coming to the water heater industry early in 2015. As a matter of fact, industry standards will change with the manufacturing of tank type water heaters starting April 16, 2015. Manufacturers are required to increase the efficiency of all tank type electric water heaters by law. Your typical 30 or 40 gallon electric water heater will be larger in size for the same gallon capacity as before. The energy efficiency will increase from 90% – 94% up to 96% efficient. See below how this increase in insulation will affect the size of your water heater. It will not make a big difference for garage kept water heaters but will affect the many multifamily dwellings with limited closet and storage space. The biggest change will affect those with large tank type water heaters over 55 gallons in capacity. Water heaters over 55 gallons will have to be replaced with a hybrid heaters or other non-tank type options. Rest assured that 4 Star Plumbing Services is following all of the manufacturers and keeping up with all of the water heating options available.


Water Heaters Under 55 Gallons

  • The height of a new unit with the same gallon capacity as an existing unit may be two or more inches taller.
  • The diameter of a new unit that has the same gallon capacity as an existing unit may be two or more inches wider.
  • For units under 55 gallons, add a minimum of three or more inches when planning the space.

Replacement Options

  • For installations where space is not an issue, units of similar gallon capacity but larger in physical size can be installed.
  • For installations where space is an issue, a similar unit with smaller gallon capacity may be installed or a unit with different technology may be a good option.


 Water Heaters Over 55 Gallons

  • Water heaters that are larger than 55 gallons will undergo the biggest changes. They may require more space or potentially switching models.
  • All residential electric models over 55 gallons must be of the Hybrid Electric heat pump water heater type design.
  • All residential gas models over 55 gallons must be of the condensing water heater type design.