I am turning my Keystoker 90 into a mini furnace. I did not get the duct ring in the top from the factory but will now weld one in. I ran a Buderus hand fed for years in the basement family room, and supplemented the heat with a few hundred gallons of fuel oil. Well, in comes the Keystoker 90, and knocks the socks of my previous arrangement. Last 2 years thermostats where turned off for the oil fired Buderus. I did a redneck hookup to the Keystoker gathering the air off the front and feeding my air distribution blower of many years and all of a sudden the house was equally warm. Cold weather was forcasted last nite so out came the redneck setup. This morning my bride of 32 years said " I was wondered why the house has not been that warm? Now you hooked up that tube and everything is better
Tis weeekend it will be warmer and I will sell the new duct ring into the top, showing the cleaner and more efficient connection of the convection blower to the distribution blower. The Keystoker Koker should kick your install up a notch or two if installed into your existing furnace. I only wish this site and my knowledge I have now was here 30 plus years ago
All in all I never went off half cocked and did anything stupid with my install. Everything is still pleasing to the eye, and very functional as well.