EFM - Efficiency

Post by **Rob R.** » Tue. Mar. 19, 2013 9:19 pm

coal_over_oil wrote:Good evening. Should the return always be in the back of the boiler? A guy I work with told me his return is coming in the top of the boiler. I don't think that is correct is it?
TY

That is not common, but the old GE down-draft oil boilers were often piped that way.

AKHEARTH · Post by **AKHEARTH** » Tue. Mar. 19, 2013 10:15 pm

Thanks Rob. The EFM manual show the pumps on the return in the back.
I think I will try to video and take some pictures tomorrow and get them posted.

Post by **Rob R.** » Tue. Mar. 19, 2013 10:18 pm

There are reasons to have the pumps on either side, but for most residential systems with a functional air eliminator it doesn't make a noticeable difference.