Hi! Happy to have found this forum. I have been working on a 18 unit building apartment building in Detroit, doing %90 of the work myself, unit by unit, over the last 5 years. I am not a boiler technician, just a handy guy, so please excuse my lack of boiler knowledge.
It's now time to replace the steam boiler, I believe. It is still working properly, no problems, but I am worried about its age, and I know if it is going to fail iti s going to be in the middle of febuary, not in the middle of summer. I now have a dozen great tenants, and I just want to be able to sleep better in the winter without worrying about the boiler.
What I have now is an 850,000 input btu National-U.S. steam boiler. I have no idea of the age, but based on what I have found on the internet so far, likely from the 60s. What concerns me most, is heavy rust and a small drip from around the nipple/faucet that must be the tap to completely drain the boiler. (on the back of the unit, at the bottom of the back section. ) I can picture this breaking, the boiler dumping all its water, and shutting off. Or the water feed just perpetually feeding water into the boiler as it runs out the back. I have no idea what other kind of rust is present inside the boiler.
Anyway, it may work another 5 years, it may fail this winter. I just think its time to bite the bullet and replace it. I am going to own this building for the rest of my life, so might as well do this now.
I have a reputable local boiler company on hand to do the work (Aladdin heating and cooling), they have replaced the boiler on a few other apt buildings in my neighborhood, and seem professional and trustworthy.
My question is, whether the boiler they are suggesting I install is the best one. They want to install a Weil McLain steam boiler, model #LGB-8. Is this a "good" boiler"? Is there a better one? I am impressed the old National US one has kept that building toasty for 50-60 years, (I plan to give it a proper send-off) and am anxious that I am spending a small fortune to install one that may just be the cheapest one for the HVAC company to install. I really want to make sure I am doing this right.
Thanks in advance!