Power Usage

power usage

PostBy: JD Mike On: Wed Apr 05, 2017 4:27 pm

does anyone know how much electricty is used in a koker for a month.
JD Mike
 
Hot Air Coal Stoker Stove: koker
Coal Size/Type: rice
Other Heating: hotblast


Re: power usage

PostBy: joeq On: Wed Apr 05, 2017 4:47 pm

Not familiar with your stove, but if it has an auger and a blower motor, I would guess the requirements would be minimal. Your kids leaving all the lights on at night would probably eat more electricity. Hopefully you'll hear from someone here with a stoker.
joeq
 
Hand Fed Coal Stove: G111, Southard Robertson
Stove/Furnace Make: Thermopride
Stove/Furnace Model: oil fired

Re: power usage

PostBy: Lightning On: Wed Apr 05, 2017 6:20 pm

Convection blowers can eat up a lot of power. My Clayton (similar to a hotblast) has twin blowers.

2.8 amps each
2.8 × 2 × 120 volts = .672 Kw/hour
.672 × 24 × 30 = 484 Kw per month
484 × $.15 = $72.60 per month

They do run nonstop for two months usually then cycle on and off the rest of the time.

Does your unit have blowers that run a lot?
Lightning
 
Hand Fed Coal Furnace: Overmodified/Bored out Clayton 1537
Coal Size/Type: Anthracite/Awesome Size

Re: power usage

PostBy: WNY On: Wed Apr 05, 2017 6:42 pm

WNY
 
Hot Air Coal Stoker Stove: Keystoker 90K, Leisure Line Hyfire I
Coal Size/Type: Rice
Stove/Furnace Make: Keystoker, LL & CoalTrol
Stove/Furnace Model: 90K, Hyfire I, VF3000 Soon

Re: power usage

PostBy: coaledsweat On: Wed Apr 05, 2017 6:56 pm

It isn't going to pull anywhere near the rated amps.
coaledsweat
 
Stoker Coal Boiler: Axeman Anderson 260M
Coal Size/Type: Pea

Re: power usage

PostBy: Lightning On: Wed Apr 05, 2017 7:54 pm

coaledsweat wrote:It isn't going to pull anywhere near the rated amps.


Why not?
Is that the case with mine too?
Lightning
 
Hand Fed Coal Furnace: Overmodified/Bored out Clayton 1537
Coal Size/Type: Anthracite/Awesome Size

Re: power usage

PostBy: joeq On: Wed Apr 05, 2017 7:56 pm

Lee, do you notice a noticeable increase in your electric bill, during stove season?
joeq
 
Hand Fed Coal Stove: G111, Southard Robertson
Stove/Furnace Make: Thermopride
Stove/Furnace Model: oil fired

Re: power usage

PostBy: Lightning On: Wed Apr 05, 2017 7:59 pm

joeq wrote:Lee, do you notice a noticeable increase in your electric bill, during stove season?


No, it stays roughly the same because my furnace preheats our domestic hot water for the electric tank. They wash each other out.
Lightning
 
Hand Fed Coal Furnace: Overmodified/Bored out Clayton 1537
Coal Size/Type: Anthracite/Awesome Size


Re: power usage

PostBy: coaledsweat On: Wed Apr 05, 2017 8:36 pm

Lightning wrote:
coaledsweat wrote:It isn't going to pull anywhere near the rated amps.


Why not?
Is that the case with mine too?

Pretty much. If you are pulling the nameplate rating, something is wrong. 80% would be my high limit expectation. 50-70% is what I recall, but it's been a while. :what:
coaledsweat
 
Stoker Coal Boiler: Axeman Anderson 260M
Coal Size/Type: Pea

Re: power usage

PostBy: Lightning On: Wed Apr 05, 2017 9:28 pm

coaledsweat wrote:If you are pulling the nameplate rating, something is wrong. 80% would be my high limit expectation. 50-70% is what I recall, but it's been a while.


Yes that amperage was stamped on the motors, I believe. It's been a while since I've seen them since they are enclosed. They are either on or off, no in-between.
Lightning
 
Hand Fed Coal Furnace: Overmodified/Bored out Clayton 1537
Coal Size/Type: Anthracite/Awesome Size

Re: power usage

PostBy: Lightning On: Wed Apr 05, 2017 9:49 pm

I thought they would draw what they are rated since it seems to work that way with light bulbs and heating elements lol.
Lightning
 
Hand Fed Coal Furnace: Overmodified/Bored out Clayton 1537
Coal Size/Type: Anthracite/Awesome Size

Re: power usage

PostBy: 2001Sierra On: Wed Apr 05, 2017 10:42 pm

Power usage is subject to the given activities of the appliance. My Keystoker 90 on max, feed motor feeding, convection fan at 100%, and combustion blower always on is 130 watts. Keep in mind I have a 250 CFM convection blower.
2001Sierra
 
Hot Air Coal Stoker Stove: Keystoker 90 Chimney vent
Coal Size/Type: Rice
Other Heating: Buderus Oil Boiler 3115-34
Stove/Furnace Model: Keystoker 90 Chimney Vent

Re: power usage

PostBy: coaledsweat On: Thu Apr 06, 2017 7:24 am

The number on the plate is full load amps rating, it determines the wire sizing and some other stuff at peak tourqe. I doubt a fan or even a gearbox feeding a stoker is going to see anywhere near a full load. The number is theoretical, not what it operates at and is typically rounded up.
coaledsweat
 
Stoker Coal Boiler: Axeman Anderson 260M
Coal Size/Type: Pea

Re: power usage

PostBy: lsayre On: Thu Apr 06, 2017 9:00 am

As far as I know a 'conventional' electric motor runs at its rated horsepower (HP). There are 746 Watts in a single HP. You should be able to calculate your actual Watts of consumption via this means. Then if you ballpark the fraction of an hour wherein the motor generally runs, you can compute the nominal Watt-Hours (which will vary with temperature conditions). There are 1,000 Watt-Hours in a single KWH.

Or just put a 'Kill-A-Watt' meter in the circuit and measure Watts directly (wherein admittedly for AC you may need to factor in the PF to gain a higher level of precision, and the same meter calculates your PF also).
lsayre
 
Stoker Coal Boiler: AHS S130 Coal Gun
Coal Size/Type: Blaschak Anthracite Pea
Other Heating: Resistance Boiler (13.5 KW)

Re: power usage

PostBy: top top On: Thu Apr 06, 2017 9:31 am

Lightning wrote:I thought they would draw what they are rated since it seems to work that way with light bulbs and heating elements lol.


I could be wrong, but I think one is a static load the other dynamic. Peak draw on the data plate is used to determine wire size and fuse requirement.
top top
 
Stove/Furnace Make: Alaska
Stove/Furnace Model: Kodiac Hand Fired with hopper.