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New boiler system considerations
I found this forum in my process of educating myself about boiler systems, as I am faced with the decision of replacing my home's current implementation. I bought a house that was built in 1926 and took the chimney out (more for layout purposes and to gain an open concept). The boiler in there now is a Weil McLain cast iron heat exchanger boiler from 1987 that was being vented out of the chimney I took out. So time to replace that.
In speaking with 4 different hvac professionals I feel like I'm back to square one and undecided, mainly on the technology. 3 of the 4 guys are proposing the mod/con route (triangle tube, nti) with the integrated hot water heating and the other is proposing a Weil McLain gv906 + 2 hot water heaters.
I'm leaning toward not doing the modulating boiler and going with the Weil McLain or equivalent 80-85% afue, as the price is better and it seems more consistently reliable.
Anything I put in there will have to be direct vented out the side of the house from the boiler room in the basement.
I'm wondering if any of you professionals can help steer me in the right direction. Here is some more info which may be relevant:
-3800 sqft home.
-still has the original single pane Windows w storm windows.
- heating is about half cast iron radiators and half copper baseboards (I've been told those need to be zoned separately)
-current system has 3 pumps and all hvac guys are proposing replacing all the pumps.
Most important factors to me are:
1) reliability (minimum service calls outside of routine maintenance)
2) price (of initial install but also gas bills)
3) ample hot water (fill a tub while dishwasher or laundry is on Etc)
The mod/con solutions seem like they will cost me about 1.5x the price of the Weil McLain.
Two of the guys proposing the mod cons are telling me installation will take between 3-5 days.
Last question is: is it typical to pay the large majority of the cost for the labor/installation on these boilers? in some cases I'm discovering the labor might be 75% of the overall cost including equipment. Is this typical and if not, what is?
Lastly, I really appreciate any help you guys can offer. Looking forward to making an informed decision and moving on!