I have a new IBC DC 20-125 "Mod Con" on natural gas. I'm living in my circa 1890 construction project without very good insulation in Northern NY. I have the thermostats jumped to run constantly as the house never reaches a set point. Downstairs, I have 600 sq. ft. (footprint of house) of radiant floor heat using Uponor plates and insulated with R-19. The radiant is mixed to 125F and returning at 108F. Upstairs, I have one small cast iron radiator in a bathroom running at boiler temperature which is presently 156F. I do not have the outdoor "Reset" sensor installed. I'm a little hot right now to be condensing but when I lower the boiler temp or watch it come up from being down, I can clearly see the condensing range when water is pouring out of the drain.
My question is about the modulating part. Will my boiler modulate when running like this and how can I tell? There doesn't appear to be a display for this infomation. Thanks in advance for any comments on these mod-cons and the "reset" control, C.
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