If I can't do the work myself then its off the list. Where I live you can't get a contractor to walk through the door for basic maintenance for less than $1k. On my first house 900 square feet I was looking to have central air installed with a Hig…
@SuperJ can you elaborate on the need to protect the cast Iron? My last house I installed a power vent Burnham cast iron. I never worried about thermostatic shock. Are you referring to return water coming in too cold and cracking the cast Iron?
Yes I have zone Circulators. The Swing check was added after the picture was taken. I realized I had reverse flow on the main floor. The Swing check is on the horizontal pipe that parallels the steel beam.
I'm in Fairfax VA. This is a standard out of the crate boiler. Here is a link to pictures and all of the tec documents you could need.