Discontinued Rifeng radiant heat manifold flow meter

[ronstory]

Hi, hoping for a bit of guideance. In 2014 I put in a simple radiant heating system in a ADU using 3/4 Heatpex, a 40 gallon gas waterheater and grundfos recirc pump. I got a generic manifold from Pex Universe and plumbed it up, bled it and it has work perfectly for 10 years. Until this week. (sigh)

One of the flow meter had developed a hairline crack in the plastic gauge and it appears Rifeng changed from a fine thread on the one I own to a course thread for the newer FN16 manifolds. Any one have experience with finding a replacement part? Or do I need to bite the bullet and swap everything out to the new manifolds so i can get replacement parts.

Thanks,
Ron

 

[John Gayewski]

Hi, hoping for a bit of guideance. In 2014 I put in a simple radiant heating system in a ADU using 3/4 Heatpex, a 40 gallon gas waterheater and grundfos recirc pump. I got a generic manifold from Pex Universe and plumbed it up, bled it and it has work perfectly for 10 years. Until this week. (sigh)

One of the flow meter had developed a hairline crack in the plastic gauge and it appears Rifeng changed from a fine thread on the one I own to a course thread for the newer FN16 manifolds. Any one have experience with finding a replacement part? Or do I need to bite the bullet and swap everything out to the new manifolds so i can get replacement parts.

Thanks,
Ron

I've had this same problem with generic products
It's almost as expensive to find and replace them as it is to replace the manifold. You can do it, but then you'll likley have to do it again, and again, and again. Get an uponor manifold.