Enhancing everyday living

Manufacturing in Canada since 1945

For over 75 years, GIANT has been proudly serving the Canadian market with its wide range of water heaters.

A water heater that meets your needs

Evaluate your daily consumption to find the residential water heater that meets your needs.

Warranty Validation

Would you like to know if your water heater is still under warranty?

Residential Water Heaters

GIANT manufactures a complete line of electric, gas-fired and oil-fired residential water heaters using some of the best raw materials available in Canada.

Commercial Water Heaters

GIANT manufactures a complete range of gas and electric commercial water heaters to meet all your commercial project needs.

Canada’s EnerGuide program for energy-using products is a rating and labelling system that allows consumers to find the most efficient product in their class. It provides verified data about a product’s energy performance.
The CSA certification indicates that our products have been evaluated by a formal process involving examination, testing and follow-up inspections. It also indicates that Giant products complies with applicable U.S., Canadian and/or international standards for safety or performance.
Giant’s Quality System is
ISO 9001-2015 certified.