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THE EQUIPMENT GUIDE / Furnaces, boilers & radiant heat

Electric furnaces

Resistance heat for a ducted system.

An electric furnace uses resistance elements and a blower to deliver warm air. It can be considered where ductwork exists and combustion equipment is not wanted.

Plan the project ↓
HVACR / SYSTEM NOTES01Electrical supply02Heating elements03Ducted rooms
Electric furnaces: Electrical supply / Heating elements / Ducted rooms. Original HVACR.tv conceptual illustration; labels identify project elements, not an installation sequence or construction drawing.

PLANNING / SELECTION / HANDOVER

Before choosing the equipment

Compare it with a ducted heat pump using local electricity rates and the building heating demand. Ask an electrician to confirm the available supply rather than assuming the existing circuit is sufficient.

What belongs in the quote

Have the quote separate equipment, electrical upgrades, duct changes and controls. Ask how heating stages will operate and how airflow will be checked.

Think about the surrounding system

Start with the building heat loss, available energy supply and the way warmth reaches each room. Ask whether existing ducts, piping and emitters can support the proposed equipment. A replacement is an opportunity to investigate cold rooms and noisy operation rather than simply copying the old nameplate.

Three questions for your contractor

  1. Is the electrical service adequate?
  2. How does the operating-cost estimate compare with a heat pump?
  3. Are the existing ducts suitable?

Prepare a useful first conversation

Bring the site location, building use, equipment model details and photographs of accessible equipment. Describe the problem or planned change and any access or shutdown constraints. Ask the contractor to identify design assumptions, excluded work, required approvals and who will commission the finished system.

This is a project-planning guide. Final equipment selection and installation details need a qualified contractor or designer familiar with the site.

Continue learning

Natural Resources Canada — heating, cooling and ventilation ↗

Independent background reading. Manufacturer references illustrate equipment categories; HVACR.tv does not claim a dealer relationship or recommend a specific model.

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