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HousePEX & Safelink Radiant Heat Tubing and PEX Accessories Brass PEX Fitting, Heat Transfer Plates, PEX Fasteners, Pex Manifolds and more... Fittings for HousePEX and Safelink Mr. PEX Pipe for Radiant Heat Systems (PEX Fittings to make your own headers for your radiant heat system) 3/8 inch PEX Pipe Loops should not be over 200 feet 1/2 inch PEX Pipe Loops should not be over 300 feet 5/8 inch PEX Pipe Loops should not be over 500 feet 3/4 inch PEX Pipe Loops should not be over 500 feet Our fittings use a split-ring compression nut brass fitting that is machined from dezincification-resistant solid brass stock. On the PEX side an integral fitting/insert design provides positive clamping and sealing action with split compression ring. PEX fittings for PEX Tubing come in 3/8 inch, 1/2 inch, 5/8 inch or 3/4 inch. 3/8 inch PEX Fittings can be soldered directly to 1/2" copper. 1/2 inch PEX Fittings can be soldered directly to 1/2" copper. 5/8 inch PEX Fittings can be soldered directly to 3/4" copper. 3/4 inch PEX Fittings can be soldered directly to 3/4" copper. 3/8 inch, 1/2 inch, 5/8 inch 3/4 inch PEX to Copper Adapters (no special tools needed) 3/8 inch, 1/2 inch, 5/8 inch 3/4 inch PEX to Copper Adapters (no special tools needed) 1/2 or 3/4 inch copper sweat with ball valve and flow balancing valve to 1/2 or 3/4 inch PEX adaptor (no special tools needed) PEX Fasteners for HousePEX PEX-A, HousePEX PEX-C or Safelink Alum PEX The PEX fasteners on this page are used in both slab on grade radiant heat floors, thin slab radiant heat systems and under floor radiant heat installations. PEX Tubing should be fastened every 2 to 3 feet. (Houseneeds, Inc. recommends every 2 feet) Cable ties are used to tie PEX Tubing to rebar or wire mesh reinforcing. Talon clamps are used for thin slab radiant floors to hold the PEX pipe in place until the pour. Large electrical staples can also be used for thin slab radiant floors providing they are driven in so there is still room between the staple and the PEX Tubing. Talon clamps can also be used to install the PEX Tubing directly to the bottom of the sub floor with under floor radiant heat installations. The rigid insulation screw clips are used when your concrete contains fiber reinforcing and no wire mesh or rebar is used. You screw the insulation screw clips directly into the rigid insulation and then snap the PEX Tube into them. PEX stand off clips are used for under floor radiant heat installations and allow the PEX piping to expand and contract quietly. Slide brackets are used for underfloor heating system installation between joists. Allows for quick install, quiet because it allows the PEX tubing to move back and forth over the slide brackets. Use zip ties to attach PEX tubing to the slide brackets. Cable ties are used to tie radiant heat PEX Tube to rebar or wire mesh reinforcing Talon clamps are used to hold radiant heat PEX Tubing in place on wood radiant heat applications. Insulation screw clips are used to hold PEX Tubing to rigid insulation for slab or thin slab radiant heat PEX stand off clips for under floor radiant heat installations. Click here for pictures of installation using PEX Stand Off Clips Slide brackets for under floor installation. Lengths from 12 to 26 inches will work for most joists. Protection Sleeve and PVC Bend Guides for HousePEX PEX-A, HousePex PEX-C or Safelink ALUM PEX Protection Sleeves are used to cover PEX at construction/expansion joints and at slab penetrations. It is important to have these in your concrete (slab) radiant heat system. Create 90 degrees bends by inserting PEX pipe into these rigid plastic PVC Bend Guides. Also provide protection and anchorage at slab penetrations and create professional appearance at manifolds. Protection Sleeves Rigid plastic PVC Bend Guides Heat Transfer Plates for 3/8 Inch and 1/2 Inch PEX Pipe PEX Radiant Heat Transfer Plates are used with joist space installation method to enhance heat transfer. 1/2 Inch HousePEX PEX-A or PEX-C snaps into plate for convenient installation. Plates are 4 1/2" wide by 18" long. When installing HousePEX or Safelink's Mr. PEX tubing under the floor with heat transfer plates you should install the PEX 8 inches on center. The heat transfer plates should be kept as straight as possible so as the PEX expands it will be able to slide quietly. We suggest you use a chalk line to help line up the plates straight. You should place the plates as close together as possible and at the ends where the PEX curves back to the next line of heat transfer plates we suggest that you support the curve at both ends with a piece of wood between the joists. The wood should have rounded edges and support the PEX as close as possible to the sub floor as you can without having it bind in any way. Doing this should allow the PEX to move at both ends assuring as quiet an installation as possible. Talon clamps are used also in conjunction with heat transfer plates for under floor radiant installations to help hold the PEX neatly to and from the pex manifold. Heat Transfer Plates for 1/2 " PEX Radiant Tubing 4 inch by 48 inch Extruded Aluminum Heat Transfer Plate for 3/8 and 1/2 inch PEX Radiant Tubing. Click here for installed pictures HousePEX Radiant Manifolds, Safelink Manifolds & Caleffi Manifolds for 3/8", 1/2", 5/8" and 3/4" PEX tubing HousePEX Radiant Manifolds for Radiant Heat Systems come with a built-in air eliminator, flow valves, ball valves that allow you to shut off you radiant heat system as needed. Safelink Manifolds come in 2 styles and can be joined to make large sizes. Optional control heads can be installed for zoning and boiler / heat source control. Click on the picture below for more info. Caleffi Manifolds come with a built-in air eliminator and shut-off ball valves standard. All Houseneeds radiant heat manifolds come with PEX Adapters. Radiant Heat Manifolds Return to Radiant Heat Product page