feed rate too high ?

feed rate too high ?

PostBy: ncountry On: Wed Dec 30, 2009 1:41 pm

We have a hyfire ll set up in my father's basement. Everything seems to be working properly,plenty of heat, no coals falling off end of grate. He has the feed rate set at 85. From everything I have read here this sounds high.Is this due to the difference in coal sources ?
ncountry
 
Stove/Furnace Model: hyfire ll

Re: feed rate too high ?

PostBy: pvolcko On: Wed Dec 30, 2009 2:06 pm

What do you mean by "He has the feed rate set at 85"? Are you speaking of the "FR" screen? If so, that is a display only, you can not adjust the feedrate directly through that screen. If you are talking about another screen, please let us know.

If the FR screen is reading 85, and the setpoint temperature is being well maintained (of course give it a few hours after lighting it up for things to settle in), then there is no problem. The loading conditions vary from house to house, installation to installation, and from day to day as the weather changes. This FR screen just gives you an idea of how hard the stove is having to work to meet the temperature setpoint you have set.

Coal source can also play into how high of a feedrate the Coal-trol needs to run to meet temperature, but again the Coal-trol will account for this automatically since it is simply going to home in on the FR necessary to maintain temp regardless of why the load is the way it is or what the burn characteristics of the coal you're using are.
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Re: feed rate too high ?

PostBy: ncountry On: Wed Dec 30, 2009 5:48 pm

I would have to go check to see which screen he is on but it is the one where you set the min and max settings. The max setting is at 85 and the feed rate has often stayed at 99% over this last cold snap.
ncountry
 
Stove/Furnace Model: hyfire ll

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Re: feed rate too high ?

PostBy: WNY On: Thu Dec 31, 2009 9:41 am

Coal has a little to do with it, but it Does seem a bit on the high side for the MAX value in the coaltrol settings. Yes, do check it. I only have my Hyfire at MAX 46 (min 8) and no hot coals are falling off at a FR of at least 75, never had it to 99, since it satisfies the temp.

Also, how it is piped upstairs to the thermostat and how far away is the thermostat. Pics or description of setup would help also.
WNY
 
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Re: feed rate too high ?

PostBy: Flyer5 On: Fri Jan 01, 2010 3:00 pm

ncountry wrote:I would have to go check to see which screen he is on but it is the one where you set the min and max settings. The max setting is at 85 and the feed rate has often stayed at 99% over this last cold snap.


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