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Replacing steam oil boiler with gas
I’m replacing an old oil steam boiler with a gas boiler. The oil boiler cracked (water spewing out the side) last winter after it was winterized by a boiler technician. Fortunately insurance is covering part of the damage.
I’ve gotten three quotes for the job.
The property is a 3 family, 3 floors + basement and each floor is about 1100 sq ft. 19.75’ x 55’. Attached house (house to the left and right). 3-4 windows in the front and the back on each floor.
I don’t know much about gas boilers …. and from what I’ve read this is not a DIY project at all, so i’m hiring pros.
All 3 quotes are for burnham boilers (independence). IN6 and the IN7. The btu range is as low as 175K and as high as 210k.
How do I know whats right for the space and the existing steam system I have in place?
One contractor (175K BTU) said installing a stainless steel chimney liner may not be necessary. They are going to clean the chimney I’ve read that dangerous gases can seep into the apartments if the chimney isn’t properly lined.
The 2nd contractor says he’ll clean the chimney… but as long as its in good shape, it doesn’t need a liner.
The 3rd contractor is installing a chimney liner.
Any advise on the process will be greatly appreciated.