MegaBoost Tank Booster Water Heater


  •  More hot water for more showers or longer showers
  •  Achieves its boosting effect at 100% efficiency
  •  Makes a small tank perform like a large tank
  •  Saves space
  •  Fast & accurate hot water temperature adjustment for convenience and comfort
  •  Increases existing tank capacity up to 70%
  •  200% faster recovery time
  •  Saves energy
  •  Saves money by preventing the increased standby losses of a larger tank replacement


Do you run out of hot water all the time? Or even some of the time? Do you need a bigger tank water heater but can’t fit one in the space?

Want to save energy and money? Don’t settle for too little hot water from your tank water heater!

It’s easy to expand the capacity of your new or existing electric or gas tank water heater. Just install Stiebel Eltron’s MegaBoost.

MegaBoost Recovery Time Comparison

Install MegaBoost for:

  •  More hot water! Up to 71% more!
  •  Faster hot water recovery time! Up to 385% faster!
  •  Everybody gets hot showers!
  •  Tub filling won’t empty the tank.

MegaBoost Tank Comparison