hot water circulator location

Phil_3

The shipping co should consider having the pump on the supply sticking out of the crate so the installers have a nice handle to carry the boiler down stairs and across dirt floors etc.

steve curran

installation of hot water circulatior

I would Like To Know Which Is A Better Performing Circulator If It Is Installed On The Return Side Of The Boiler Or The Supply Side Of The Boiler.I Am Thinking It Is Better To Install On The Supply Side Or Discharge Side Of The Boiler Because On The Return Side It Has To Circulate Through The Boiler. Will Be Looking For Answers Or Opinions. So Why Is Residential Installations On Package Boilers On The Return Side.

Bob Gagnon plumbing and heating

circ. on supply

absolutly put the pumps on the supply, it works a lot better. check out dan's book "pumping away" and pipe it in just like it says. bob

John Fernandez_2

The pump is on the return side because of the short bx cable. Just kidding Dan!

Earthfire

circs

That and the shipping department likes it there I've been told that they don't do it that way in europe. If the manufacturer mounted the circ on top the crate would be higher, and fewer boiler crates in the truck. Marketing runs the world. Long Live the Pencilpushing Geeks

Mark J Strawcutter

but they sell

bx in long rolls - they really do!

(see Dan, sometimes we actually remember what we read :-)

Mark

Dave Flood

Circulator position

Hi Steve,
In schools and seminars I've attended over the years, it has been explained to me that years ago, cicrculators were installed on the return side because of problems with the seals. The circulators couldn't take the heat of the water on the supply side of the system. We don't have that problem with ciculators of today. On most residential applications, the head that the pumps work against is not a problem, so you can place the circulator on either side. However, we achieve better performance if a pump is on the supply side. With the pump on the return side, we tend to pull the air out of the water and create gurgling in the system. With the pump on the supply side, we push the air back into the water.

Dave Flood
Dir of Tech Trng
ICPA Tech Trng Ctr
Wallingford, Ct