How many different blower motors are used in furnaces available in Toronto?

We can categorize blowers into three main categories:
  • PSC blowers – Single Speed These blower motors consume the AC city electricity in the same AC form and always run at the same frequency. These are the very basic blower motors used in the heating industry today. They will, of course, beat the efficiency of a 20-year old blower motor by a mile, as they are about 30% more efficient than the old blower motors. However, don’t limit your options. They would not have the quietest operation and will not maximize your comfort.

  • ECM X13 – Multi Speed Motors ECM stands for Electronically-Commutated Motors and all ECM motors will first convert from AC electricity (the type of city electricity) to DC power. There are two direct advantages that will result from DC power: DC Power has a lower and more efficient power consumption as opposed to AC power and converting to DC power will allow for modifying the motor speed – hence the term variable-speed. These are not true variable speed motors, rather they usually have around 4 different speed settings. They are about twice more efficient in electricity consumption than PSC single-speed blowers. The general sense is that they will be quieter, also considering that the furnaces are designed to work on lower heating and speed stages.

  • ECM – True Variable Speed Unlike the multi-speed motors, there are many more different speed settings increasing at small increments. They can be 4 times more efficient than ECM X13 motors. They are in use in Carrier’s INFINITY furnace models.
Operational Cost Comparison Between The Above 3 Types Of Blower Motors

Let’s assume, first, that your old blower motor runs for a full year 24/7. Assuming an average household in Toronto – and assuming average electricity costs – you will incur a cost of about $600 towards your hydro bill alone. 

This value will cut down to around $400 if you end up purchasing a furnace that features a single-speed blower using AC electricity.

With an ECM X13 blower motor, you are looking at reducing this rate to $200.

And finally with the true variable speed ECM, also using DC power, you will be able to further cut the hydro cost to an unbelievable $40. Amazing, don’t you think?


Improving Hot And Cold Spots + Quieter Operation

Read our blog post on Carrier’s COMFORTHEAT Technology and find out in detail how ECM motors in Carrier furnaces improve the quality of your home comfort.

ECM Inducer Motors

Similar to blower motors, inducer motors can be ECM as well. An inducer motor or also referred to as a ventor motor, which basically drives the burnt flue gas (essentially carbon dioxide formed as a result of combustion of natural gas) out of the high-efficiency furnace and outside your home.

An ECM inducer motor will result in quieter as well as a more efficient operation. So you might want to ask about the inducer motor as well!


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