Heat Commander Big Enough??

[sloeffle]

330W blower (HC @ 0.2” wc) at say 12hrs runtime for 30 day month at $0.30 = 330x12x30/1000 =$118.8 added..

I'm sorry, but your math is not mathing.

330 watts X 3 hours = 1kWh roughly (you are billed by kilowatt hours) = .30 cents in your case

If you are running the blower 12 hours a day, that's .30 (1000 watts = 1kWH per above) x 4 = $1.20 for every 12-hour period

$1.20 every 12 hours X 30 days a month roughly = $36 dollar a month added to your electric bill.

In actuality it's a little less because over a 100-hour period I'm adding 1kWh to my math. And as brenn pointed out, the motor is not going to be running at a full 330 watts all of the time too. My guess is it will add roughly $20 - $30 a month to your bill.

 

[brenndatomu]

it will add roughly $20 - $30 a month to your bill.

agreed

 

[Citationls]

The sad part is $100+ to run a 1/3hp blower motor doesn't seem out of the question with our electricity rates 😄. $20-30 sounds more reasonable though.
For anyone interested: I extended the wires for the plenum RTD and moved the RTD to the very top of the plenum today. I previously had it about 2/3 of the way up the plenum because thats as far as the wires would reach. The blower runs for longer during the "on" cycles now. "Off" cycle times remain similar, maybe slightly shorter. This is based moving the sensor from one location to the other every 10 minutes and timing cycle times. Fire is getting toward towards the last 2/3 of its burn cycle so times were slowly changing due to that during my testing window. Fire was also only started 2hrs before tesring in a luke warm firebox so not ideal testing conditions. Ill test again sometime if I get real bored.
Seeing as heat rises and the top of the plenum is significantly warmer to the touch than the bottom of the plenum, it makes sense that you would get more run time with the sensor near the top.

 

[brenndatomu]

The sad part is $100+ to run a 1/3hp blower motor doesn't seem out of the question with our electricity rates 😄. $20-30 sounds more reasonable though.
For anyone interested: I extended the wires for the plenum RTD and moved the RTD to the very top of the plenum today. I previously had it about 2/3 of the way up the plenum because thats as far as the wires would reach. The blower runs for longer during the "on" cycles now. "Off" cycle times remain similar, maybe slightly shorter. This is based moving the sensor from one location to the other every 10 minutes and timing cycle times. Fire is getting toward towards the last 2/3 of its burn cycle so times were slowly changing due to that during my testing window. Fire was also only started 2hrs before tesring in a luke warm firebox so not ideal testing conditions. Ill test again sometime if I get real bored.
Seeing as heat rises and the top of the plenum is significantly warmer to the touch than the bottom of the plenum, it makes sense that you would get more run time with the sensor near the top.

Lamppa wants the blower switch mounted up high in the VF plenum too...