Hot Water Tanks; hot water takes about 17 to 20% of our heating bill. so more efficient, less the bill. please visit energy.gov, on a real saving steps to take.

illustration of electric and atmospheric hot water tank
Installed Power Vent

There are many types of hot water tanks used in residential/commercials, which some of them are:

  1. Atmospheric vent water heater, using gas/oil
  2. power vent water heater, using gas/oil
  3. Direct Vent water heater
  4. Electric water heater
  5. high efficiency water heater
  6. polaris high efficiency water heater
  7. storage water heater
  8. solar water heater

House Depot carry a wide range of hot water tanks in GTA, we will help you to choose the model best fit to your house needs while providing energy Energy Star certified models. With our 100% service guarantee, you will not have to be concerned about running out of hot water while taking shower.
The traditional residential tanks ranges varies from 20 to 80 Gallons, providing up to 12 gpm hot water. In traditional hot water tanks, preheated water comes from the top when a household opens the hot water tap, the cold water simultaneously pulled in from the bottom of the tank and gets heated.

According to energystar.gov , there are specifications for Energy Star certified models, which have better heat insulation, better heat traps, and more efficient burners.
Call HouseDepot for free evaluations and your needs for your house. There is also a brief description and comparison with tankless water Heaters.

Hot Water tank size
The simplest solution for the sizing is if you already have one and wants to replace it, and if you are happy with it, then use the same size. Or visit energy.gov for more accurate calculations.