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Welcome to Rad King Radiant Heat Contractors, Inc.
Phone Number:
(631) 672-3030
Before installation:
Ensure ceiling access below heated area is open
Confirm manifold locations (closets, basement, or slab-mounted)
Verify power source location for low-voltage thermostats and actuators
Review floor and wall layout for tubing drop points
During installation:
Keep first-floor or basement ceiling open until PEX runs are complete
Confirm tubing loops match the room zoning plan
Coordinate with electrician for low-voltage wiring rough-in (if needed)
Maintain dry, clean environment for panel installation
After installation:
System pressurized and air-tested before floor covering
Access panels installed over manifold locations
Electrical wiring complete for thermostats, wall sensors, and actuators
System labeled and ready for boiler connection
Manifold Placement Guidelines:
Centrally located manifolds = shortest runs, less heat loss, and better efficiency
Avoid locating manifolds behind finished materials without access panels
Second-floor manifolds → usually in closets
First-floor manifolds → typically in basements
Slab installs → run tubing topside or vertically to wall-mounted manifolds
Installing radiant heat happens in stages and we’ll walk you through each one. Here’s a quick guide to help you know what to expect depending on your home type:
Second Floor:
The manifold (the main connection point for your radiant heat) is usually in a closet.
We’ll need the ceiling below open while we run the tubing, then your contractor can close it up once the system is tested.
First Floor with Basement:
The manifold is typically in your basement.
We’ll need access to the basement ceiling to install and connect the tubing before it’s closed off.
Homes on Slab:
We’ll install the radiant system right on top of the floor structure and run the tubing up the wall into the manifold. This layout keeps the system efficient and discreet.
Once everything’s connected, we pressurize the system with air until the final flooring is installed.
And don’t worry manifolds are always hidden behind clean access panels, not exposed in closets. You’ll never have to move clothes or linens to reach them.
After setup and testing, access is only needed for maintenance, which is required.