My 165 I had first had the 50 cfm blower and my 250 has a 75 cfm fan
Been following this discussion and had some thoughts come to mind:
The 165 comes with a 50 cfm blower with a slide damper for blower air control during off cycle, keeping the fire to a minimum to prevent boiling during off cycle and yet open enough for adequate fire during call for heat.
When ordering the soleniod / damper upgrade, the blower is increased to 75 cfm.
The 250 comes with a 75 cfm blower, ( standard ? ), with or w/out damper upgrade ( ? ).
The increase in blower cfm on the 165 is for ease of installation of damper upgrade when ordering such option.
Thoughts,
1 ) Wouldn't the increase in the blower cfm create a possible overfiring situation ?
2 ) Increased wood consumption ?
3 ) Creating more of a water "hot spot" then conditioning more of the volume of water during a less intense burn cycle ?
4 ) Wouldn't controlling the air flow also contribute to effeciency ? Blower speed controller or slide damper installed along with damper ?
I understand the use of a damper to shut down air flow during off cycle, ( natural draft stoppage ).
Just some thoughts, looking for other opinions and insights.
I understand there are a lot variables when it comes to getting the most out of burning your wood, just looking to get the most from the least.
Thanks,
Church