McGiever wrote:Me thinks the 280*F number is factored for creosote condensing from a wood source. So, not an issue w/ coal.
These units inside have several tubes running accross it...essentially an air to air heat exchanger.. What you say about creosote condensing may be true, but I think, using this with coal, these tubes would build up and collect fly ash in no time, thereby quickly making IT less efficient as well, and a constant çlean out chore...
Not worth it in my book...I ended up selling mine to a friend who has an Indoor wood stove, and he loves it!...Thats where they make sense..In a situation where you have a long, hot fire...
In a wood boiler, that is not the case, as the Being a boiler, the fire is not always roaring..it is regulated by a damper of some sort depending on the demand for heat...