sauerzbr wrote:Did some more testing with holding the thermostat in front of the stove and after a good period of time, the stove blowers did slow down. Thermo was reading in the 90's for a long time before those blower even slowed a bit, FR had to be nothing for a long period of time. Just something I need to understand with this unit. My experience is with wood and oil stoves.
I also noticed that since I changed the max setting to 30, the coal in my ash pan was a finer grade compared to the lumpy ash I've been collecting. Is this because it's feeding less of the time and the coal is staying in the burn longer?
Overall, I am very happy with the performance of this unit! It does a GREAT job for what it was designed to do.
I just need to keep learning and with the help of all the GREAT people on this site, I might even be able to help others in the future.
Next is to pick up a ton of coal. $240 ton bagged just down the street... is that about right?
pvolcko wrote:Glad to hear it is working correctly.
You can continue running with MAX of 30 if you like. A down side will be that the stove will not achieve maximum BTU output potential. On very cold days it may not be enough to keep up and it will take a bit longer to achieve setpoint changes to higher temperatures. If the stove is a 90KBTU stove and a MAX of 40 is a full grate of fire, then a MAX of 30 will result in a maximum burn rate of roughly 75% of the stove's 90KBTU potential, or about 68KBTU. Also, since the heat loss of the area being heated is not changed and the Coal-trol will seek the BTU output that matches the heat loss of the room at a given setpoint temperature, the Coal-trol will be forced to settle at a 25% higher FR value in order to compensate. If FR of 50 maintained 72 degrees before, a FR of 62 will be necessary now, assuming the same heating conditions. This means the fans will run faster for any given BTU output of the stove, which means slightly colder air (due to higher CFM) being pushed out of the stove than you would get with a properly set MAX.
As a general matter setting a lower MAX will not result in any change to the completeness of the burn or ash quality, assuming the original setting of 40 was not too high. For LL stoves 40 is a safe MAX setting that results in a full and complete burn at maximum feed rates.
sauerzbr wrote:Did some more testing with holding the thermostat in front of the stove and after a good period of time, the stove blowers did slow down. Thermo was reading in the 90's for a long time before those blower even slowed a bit, FR had to be nothing for a long period of time. Just something I need to understand with this unit.
The fact it is making you uneasy or suspicious is probably a good indication something's not right, if it was mine I would unhook the control and take a ride to LL and ask him for a replacement .
They have them in stock for new units, let the pro's figure it out . If its okay it can be reinstalled on a different unit and then they can help you to figure why it didn't work the way you thought it should, you'd have peace of mind..
WNY wrote:My blowers slow down and bascially stop when the temp is satisfied and will turn on low if it needs heat, and go faster as needed depending on feed rate....mine run slow a lot of the time and I don't even know they are on. If the thermostat is satidfied, the blowers should stop after some time.
I would get a hold of LL or CoalTrol, somethings not right.