Will Ultrafin work and not make noise?

hot_rod

anything that will minimize the temperature swings will lessen expansion noise.

There are plenty of ways to build a constant circ system, TRv's 3 way ZV's, injection mix stations, etc. It gets a little more involved if you need multiple supply temperatures.

At the design phase try to calculate the emitters so all supplies are within 10- 15 degrees of one another. Add all the requires tempersatures and divide by the number of (average)

Siggy's December 2003 column in PM mag has some excellent constant circ ideas. Find it archived at www.pmmag.com

hot rod

Gene Davis_2

Ultrafin? Expansion ticking noise quieted?

What techniques or materials are used to minimize the tick-tick-tick noise from expansion and contraction?

A heating pro that uses this told me that only a specific type of PEX, something with aluminum content (PEX-AL-PEX???) should be used, not ordinary PEX, and when that is used, everything is quiet and works well.

What say you?

hot_rod

Installation care

has the most to do with systems making, or not making, noise

I agree the composite tube is a better match with the Ultra Fin or any "floating" system.

Be sure the loop ends are free to move. Most noise issues are created where the loop ends go thru a drilled hole. Use a large enough hole to allow the tube to move and/ or add an insulator.

Composite tube does move around less, but it does still expand and contract. Allow for this movement.

Use a hole drilling table to assure you don't compromise the joists or manufactures I-joists, by drilling too large of a hole in the bearing area of the structural components. Same for bearing studs.

And of course, do a room by room heat load before you start installing. Radiant floor, and their and installation methods and options do have some limits.

hot rod

LarryC_4

Won't continous low speed circulation reduce expansion noise?

Won't continous low speed circulation reduce expansion noise? Do you need to use a Mod-con or a buffer tank to minimize the temperature changes?

Glenn Sossin_2

Avoid contact with wood

They make violins, guitars, and pianos out of wood because its a great conductor of sound. You want to minimize that direct contact with the piping where possible. As Hot Rod suggested, use an insulator of some kind. I would suggest suspension clamps, and pick up talons. See the pics

Also agree the aluminum pex products will have the least expansion potential