Groupe H2O

Our water heaters

What is a water heater?

Easy to recognize, the residential water heater is a large steel-clad cylinder.

An anti-corrosion tank is located inside. This tank is covered with insulation, either fiberglass or better yet, polyurethane foam.

To protect metals from corrosion, a magnesium-coated rod is placed inside the tank. This rod can sometimes be replaced by an aluminum rod or an electronic rod.

Stem replacement is necessary when the water contains bacteria that react with magnesium. By reacting with magnesium, these bacteria release sulfur. Replacing the stem avoids the rotten egg smell caused by the presence of sulfur.

Cold water comes in through the top of the heater. It is then heated by two electrical elements, one at the bottom and one at the top, which are controlled by thermostat. Usually the water is kept at 60°C.

In Quebec, the main source of energy is electricity. However, it is possible to use fuel oil or natural gas.

The water heater is the appliance that consumes the most energy after the heating.

As the name suggests, a water heater is used to heat water! Your teenagers will say: “taking a hot shower, what a pleasure”! This is possible thanks to the water heater that keeps a reserve of hot water ready to be used.

Hot water demands vary depending on the number of people in the household and their consumption habits. The size of the water heater is chosen accordingly. The most common sizes are :

  • 60 gallons for four or five people (about 230 liters).
  • 40 gallons for three people or less (just over 150 liters).

The John Wood residential electric water heaters we install are made only for contractors. They are available in a wide variety of designs and sizes, and the warranty is excellent.

They have unique characteristics:

  • They are very resistant to corrosion
  • They offer good energy savings
  • They are easy to maintain

Installation : $

Maintenance : $

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