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Old 10-12-2013, 07:33 AM   #1
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Oil or Electric Furnace in Quebec


Hi,

Currently oil is running about $1 a liter. Electricity here in Quebec is cheap... about 6 cents a kilowatt.

We have an old oil fired furnace, old tank, no chimney liner, 3 year old heat pump. Our house is about 50 years old. the attic is well insulated, but the walls are not.

If you were upgrading your equipment what would you do?

DC variable speed fan?
air exchanger? (really needed with drafty walls?)
thermostat? What model?


Oil option
=======
furnace ($1500??)
tank (1000$)
chimney liner (1000$)

Electric
======
furnace ($1500??)
50 ft 100 Amp wire (10$ a foot??)


Your thoughts?

Regards,
Terry

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Old 10-12-2013, 08:43 AM   #2
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Oil or Electric Furnace in Quebec


At 6 cents no need to even look for my pencil much less my calculator for that one.

Next question

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Old 10-12-2013, 09:20 AM   #3
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Oil or Electric Furnace in Quebec


they make it a little more complex...

The D Rate.

==========
fixed charge of 41 cents a day (already pay that one).

then
first 30kwh/day is 5.41 cents/kwh
then it changes will be 7.78 cents/kwh

and
power above 50 KW (not sure if this is daily, monthly, etc)
winter (Dec 31 - March 31): 6.21 $ / KW
summer: 1.89 $ / KW

now currently I am on the DT rate for dual energy (oil and heatpump)

The DT rate...
===========
fixed charge of 41 cents a day (already pay that one).

when the temperature outside is warmer than -12C it's 4.40 cents / KWh (we heat with pump)
when the temperature outside is colder than -12C it's 21.26 cents / KWh (we heat with oil)(about 2 weeks a year)

power above 50 KW (not sure if this is daily, monthly, etc)
winter (Dec 31 - March 31): 6.21 $ / KW
summer: 1.89 $ / KW

Obviously going electric heat there is a higher risk of hitting that 50KW ceiling. And now we have smart meters that among other things can really calculate daily usage instead of monthly average.
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Old 10-12-2013, 10:43 AM   #4
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Oil or Electric Furnace in Quebec


Thats probably 50KWH a day.

I think I would check into upgrading wall insulation, before I upgraged equipment.
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Old 10-12-2013, 11:03 AM   #5
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Oil or Electric Furnace in Quebec


I agree. plus you said you only heat with oil for 2 weeks when it is below -12C? then there is no point in replacing the furnace. I would get it properly setup by an experienced oil tech with a combustion analyzer. There are electric furnaces with X13 ECM constant torque motors that use a lot less elec if you want to run it continuos for circulation. Do the maths on the basic PSC and it is not good. W=E x I watts =volts x amps. figure that motor runs 3-4 amps x 120 volts = 500 watts. You would have to go to GE Genteq for more info on ECMs but they use a lot less. Electric furnaces also have a mild/cold weather switch to disconnect 2 elements in mild weather. you may get away with running it on mild and that would keep some cost down.

Keeprite makes a nice oil furnace with a true variable speed ECM motor but it is not going to be cheap.

http://www.keeprite.com/products/nomv.html

http://genteqmotors.com/products/
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Last edited by yuri; 10-12-2013 at 11:12 AM.
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