K L or M

Viess

Hey,

What is the most commonly used copper pipe thickness for Hydronic piping?

Mark Eatherton

L or M above ground....

K or l below.



I use primarily M in my systems, but know people from back east who use nothing less than L. Not sure why but oh well...



ME

TonyS

Same here

We use M

Unknown

Same here

Ditto,,,,

Alan (California Radiant) Forbes

How I remember

what to use:

M - Most installers

L - Limited use

K - Knuckleheads or government work

Ross_7

M for sure

All of the contractors I've worked for used to use Type M exclusively, but since I've been working for the University,everyone uses Type L in the trades dept. I'll use either, whatever's available to get the job done.

bill_105

Here's a trivia question

While on the topic of pipe thickness, does the paper thin pipe of a baseboard element emit more or less heat then K,L or M?  Say you were to take a foot of K and put the Aluminum things on and measured the BTU'S. Would it be different then the element makers pipe?

MarkPFalade

I use L

I'm not sure why it's just a habit I got into long ago. Not even sure where I picked it up. M always seemed flimsy to me I guess. It sure is a lot easier to cut and ream though. ;-)

TonyS

I would guess

no

SpeyFitter

m?

We used to use 'M' but now we use Aquatherm.