Enhancing everyday living

A family business since 1945

For more than 70 years, GIANT has been the only privately held company in Canada specializing in water heater manufacturing.

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Residential Water Heaters

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

Commercial Water Heaters

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

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 9001-2008 certified.