I have hot water heating, and removed all the baseboard heaters to refinish
living room floor. My house was built in 1951 and has old style baseboard
heaters they have two 1/2 inch copper pipes that run through them and each
section is 54 inch long and sweat soldered together...anyway about 36 ft
altogether. I made a few cuts to get it apart and now have run into a
problem trying to put back together...it seems that the 1/2 inch copper they
used in 1951 (or at least what was used in my system) is about 1/16 inch
bigger than the fittings - 1/2" elbows & couplers.....................what
to do? I have tired using emery cloth to grind down old copper a little so
the fitting will go over it, but it is not working, after much work can just
get fitting on like 1/16 inch..... I can not afford to go out and buy all
new heaters right now......I only have 2 90's and about 8 couplers to sweat
together........what to do???? any help appreciated.
Any chance those olde heaters use 5/8" pipe and not the 1/2" pipe you're
You know, there is a 5/8" copper pipe standard:
Have you used a vernier caliper or a micrometer to confirm the pipe's
And, they do make fittings for 5/8" copper pipe:
Good luck, let us know how you make out,
On Oct 17, 8:20 pm, firstname.lastname@example.org wrote:
You have copper tubing not pipe and you should be able to get the
fittings at a wholesale not Home Depot Refridge fittings will work do
not sand the pipe thinner as it is holding some pressure in the system
I did take a sample to ACE Hardware this afternoon, they measured and said
was about 1/16 inch larger than 1/2 inch copper......I do not believe it is
5/8....I just checked and compared with some new 1/2 inch I had in basement
and there is just slight difference in size.... pretty much, they look the
same to me.
That would be 11/16 then. Or very close to 17mm.
Get a micrometer and get the actual size and you may do better finding what
you really need.
Try these guys
I have no idea why metric tubing would be in a US house built that year
though. It would not be common at all.
On Oct 17, 7:42 pm, email@example.com wrote:
What is the od measurement?
What did the ace folks measure it with? a tape?
You really don't care that is measures "about 1/16 inch larger than
1/2 inch copper", that is a pretty much useless piece of information
.......you want the actual outside diameter, measured with a caliper
to the nearest .005"
standard copper tube has the following "od's" ......... in your size
.5, .625 & .750
any other od's are not standard copper "tube"
ACR tube has the same od's but the size designations are
I've been working with copper tube since the 60's and the sizes
for the spec sizes visit
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