Efficiency of over-sized boiler
I'm starting to question the efficiency of my heating system...
For my decently insulated 1500 sq/ft home in CT, currently I have a 175,000 btu boiler that does both heat and hot water.
I'm wondering if I can gain significant efficiency by:
1. getting a new boiler that is sized smaller
2. getting a separate hot water cylinder
Contractors have had conflicting opinions, and are of course trying to sell me something. What do you all think?