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Modulating boiler question...

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.
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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Edit: Upstairs, I will be adding 14 feet of 9" Base Ray cast iron baseboard that was in the house and two more cast iron radiators.
Sent from Boca Del Toro Panama
IDK if that boiler is equipped to provide 2 SWT zones, but if not, there's a way to run the cast iron rads off of the indirect connections so that the floor could be supplied with much cooler water than 160*+ and the boiler would be at 95% + efficiency instead of 88% that it's at when running 160*.
You can choose to do what you want, but you cannot choose the consequences.
You can choose to do what you want, but you cannot choose the consequences.
How low can you go?
trainer for Caleffi NA
The magic is in hydronics, and hydronics is in me
Assuming it is piped primary/secondary, the DC boiler doesn't really give any information about the modulation or firing rate of the boiler. That said, you can remove the door and listen to the blower. As it speeds up you're getting more heat. As it slows down, you're getting less heat. Also on the top left of the boiler, there is a mirror that allows you to view the flame thru the sight glass.
As to the outdoor reset, installing it allows the boiler to change its target water temperature. This will allow the boiler to modulate down earlier, saving you money, on those 25 - 45 degree days.
I also think you need to add some radiation to the upstairs.
You can set the hot water output down into the condensing range (125F) and this will help efficiency as the coil is separate from the heating side.