Quote Originally Posted by swampyankee View Post
Hello

Perhaps a stupid question but I will ask....why wouldn't a couple of small pipes (SS sched 80) across the exhaust gas flowpath pick up more heat (possibly too much) and be a simpler/cheaper solution? Kind of like a feedwater economizer on a large utility boiler
I've read that a couple member have stainless pre heaters running through their exhaust, and I know there is one manufactured for the wood furnace that i heat my house with to augment the electric water heater. I have these tidbits registered in my nugget for sure! For now, this is my first arch, my skills, and resources are limited, but a good idea for sometime down the road.