My furnace was frankenfixed tonight with this part, but from an unused commercial trailer and by my ex who is a diesel mechanic. What I had was ancient and broke down two days ago. My house is from what I can tell, a sprawling mess of drafty "porch" , then closed in additions, rancher style and about 3,000 sq ft. at this point. Wondering if it is at all sufficient. Definitely looks better than what I had going on. We worried that this might not be sufficient and might burn up whats in the tank. Any advice would be great. Also, in my research I went further in "paying it forward" aka karma so anyone I responded to might want to check out my later posts!