I was thinking of using a 45 degree out of the back of the GARN with a short piece of pipe then another 45. Is this worth the effort or will it really make much of a difference over using 1 - 90 degree elbow? I would then repeat the procedure to get from the back of the unit along the side. So, in other words, would 4 - 45's be better then 2- 90's (for each supply and return pipe run)? Thanks.
Piping elbows
- Thread starter Ecky
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The charts in Siegenthaler's book suggest maybe 20% or so less resistance to flow with the 45s. If you have the fittings anyway, why not? When is anything too good if it doesn't cost a lot more in money or time.
heaterman
Minister of Fire
Dave is correct. A couple 45's with a nipple of at least 2 pipe diameters in length will decrease flow restriction 20% compared to a 90* ell. A few seemingly minor things like that along with the correct piping size can add up to a lot of difference in pumping power needed to move a given GPM. I'd say go for it.
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