Best Of

Piping is horrible. No two ways about it. Maybe try to get the manufacturer involved

For me, he’s either BSing, or just doesn’t know. I question the knowledge when they can’t size it correctly. There are generous factors built into those rating to cover piping. A properly sized IN4 has enough factor for 140’ of 2” piping. I’m going to guess you don’t have close to that. With the IN6, it’s hundreds of feet. Are you planning on adding an addition to the house and expand the system? If not the additional radiators comment makes no sense. Also made me chuckle, like he’s making future plans for your house, on your behalf.

One step at a time makes no sense. The piping is wrong, it’s not really a discussion topic, there’s a picture in the manual showing what’s correct and that isn’t it. So is this like trial piping and he’s going to rip it out and do it over as part of the process? That wouldn’t make sense at all.

I would also suggest you contact Burnham about them disconnecting 2 burners. That very likely will void the warranty for the boiler if the contractor didn’t get their approval for it. To be very clear on this comment, you contact Burnham, I wouldn’t take the contractors word for it.

My assessment, they are doing a few things to cover up until you go away out of frustration. And yes, I’m sure they are being super nice while they are doing it. Nice won’t make it work.

This lack of knowledge in my area is why I ended up replacing my own boiler, I just had zero confidence in any of the local contractors.

I wish you luck.

In my experience with combustion analysis anywhere in the 200 degree range. I used to do a lot of fan assisted furnaces and they would run anywhere from 225-275 temp range. And if they used single wall flue you would always see corrosion at the joints. Nobody would use B-vent as recommended in the instruction manual because they wouldn't bother to read the manual. thats the range i would see most damage but its just from testing

All boilers should be checked for combustion. I'm just saying it is very different checking this style of boiler now that they have removed most of the adjustments then it is checking high efficiency boilers or power burners.

There isn't anything you can adjust on that boiler besides supply pressure to the burner. Excess air is going to be ridiculous. But as long as it doesn't soot up no one will notice or care besides the poor owner. But it is still cheaper than buying a new boiler. Becoming a less idealistic these days. I understand why old tradespeople are grumpy more every day.

Advice is get boiler properly piped as best as you can with the copper supply pipes of the system. Drop the pressure of the steam. Then plug one burner orifice and see if it is liveable in operation. If not plug a second one. This is what needs done if the original installer won't replace boiler with the proper size boiler. The horse left the barn, I can't worry about the door now.