[email protected] wrote:
Hi Chuck,
Been living in Sweden my whole life. And almost exclusivly in houses
heated by circulating hot water through radiators. I have yet to spot an
O-ring.
Where in Sweden did you see this strange system?
Hi Bjorn,
In the US, hydronic heat comes in a couple of flavors: The old fashioned
cast iron radiators, fin/coil baseboard radiators, radiant baseboard, or
steel radiators/towel warmers imported from the Europe.
Most of the European systems are geared towards PEX tubing, and compression
fittings... and untapered pipe thread with jamb nuts and O-rings.
The US cast iron radiators all use tapered pipe thread, fin coil is almost
always
soldered copper, and the steel radiators from Sweden/Denmark/Norway/Switzerland,
and Italy, all have straight pipe thread, and use a Jamb nut with an O-ring.
Runtal, Cordivari, Wirsbro and Wesaunard are examples I have run into.
I have also run into this system in shut-off valves, manifolds, flow
control valves, air eliminators, ... all coming from Europe.
Do you install and repair systems? Or just live with them?
-Chuck Harris
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