thermostatic coupler

john_27

I have an lgb 15(steam) ..sitting next to three hot water heaters run by a taco 007.....is there a way of attaching a themostatic coupler to the exhaust stack of the lgb to transfer some of the heat to the piping coming off of the top
of the hot water heater.....if so,which part, and....is there a risk of transfering to much heat?
I can check the stack temperature before and after......thanks!...John
Also, does anyone know the typeset for the wall....serif 10 point...I like the way it looks.....