Looking at the TT prestige trimax series, there is the 60 with input modulation of 16 to 60K MBH. The next size up is the trimax solo 110, with input modulation of 30 to 100k MBH
I understand that the 110 unit does not modulate low enough given the size/mass of the fine/tube zones, leading to short cycling, which led to the advice to take a look at the trimax 60.
What impact does air-sealing and insulation of the house have in all of this? The rooms with the baseboads units are both facing the north side of the house and they are pretty cold
in the winter. The addition was build about 15 years ago and insulation was part of the building code back then but I am not sure that they really followed it.
At this point I am looking into a energy home performance audit to get a better understanding of how leaky the house really is.