Hello all, I haven't posted for several years. My woodgun E200 is doing a great job keeping my 5000 sqft house warm. It's the right unit for me; I can pack it with wood twice daily and basically forget about it otherwise. What I don't like is this: The E200 turns on at 140F. It then heats up to ~170F. At this point it turns itself off and closes the air intake. Then, as my house continues to call for heat, the unit slowly drops back down to 140F, at which time it turns itself back on. Usually this works great. However, if the unit was burning particularly hot, and if my house is calling for a lot of heat, and the wood is seriously pyrolized, and the moon and tides are just right, the firebox reaches flashpoint while there is an optimal balance of flamable gas and air. This results in a gas explosion in the firebox, which vents out the air intake (or the user's eyebrows- see my previous post on that.) I'd like to fix the problem by puting a speed control on the draft inducer fan. This control would do the following: 140 to 150F...........Full power 150 to 160F...........50% speed 160 to 170F.............30% speed 170 or above.........Turned off by existing controls on E200 I think that this will cure the problem. It allows the E200 to match the heating load required by the house. So, instead of turning competely off then back on with a bang 5 minutes later, it will turn the fan DOWN, and run a bit cooler to match the needs of the house. 1. Do you think this is a particularly bad idea? Any other solutions? 2. Does anyone out there know how to get an AC motor to run at 50% power?