For hydronic staple-up radiant floor heat, you need a way to secure PEX tubing to the underside of a floor or to an appropriate backing material. The Malco FBSN is the most directly relevant tool here, but its listed use is attaching tubing to foamboard—not fastening tubing beneath a wood subfloor. The other products are electric floor-warming kits or a foamboard stapler kit, so they suit different installation methods. Compare the application and flooring assembly before choosing.
| Product | Best suited for | System type |
|---|---|---|
| Malco FBSN PEX Foamboard Stapler | Standing installation on compatible foamboard | Tool for tubing attachment |
| WiFi Radiant Heat Kit, 240V, 32 Sq Ft | Small electric floor-warming area | Electric cable |
| WiFi Radiant Heat Kit, 120V, 92 Sq Ft | Larger electric floor-warming area | Electric cable |
| PEX Foamboard Stapler Kit | Foamboard work with included staples | Tool for tubing attachment |
| Mapei Mapeheat Mat, 240V, 21 Sq Ft | Tile installations using a heating mat | Electric cable mat |
Malco FBSN PEX Foamboard Stapler
Best for: Installers securing PEX tubing to compatible foamboard while working from a standing position. The FBSN is a manual fastening tool, not a heating system or a complete staple-up installation kit.
Its listed staple system accommodates 3/8-inch, 1/2-inch, and 5/8-inch PEX on 1-inch or 2-inch foamboard. The product information specifies FBSN1 staples, 1-1/2 inches long, for 1-inch board and FBSN2 staples, 2-1/2 inches long, for 2-inch board. Its leaf-spring feed is designed to guide staples through the mechanism, and the magazine strips contain 25 staples.
Why it was selected: This is the clearest match for radiant tubing attachment among the listed products. Its standing D-grip design may be useful for larger foamboard jobs where repeated bending would be undesirable.
Limitation: The listing says it is not for EPS-type foamboard. It is described for foamboard fastening, so do not assume it is suitable for stapling tubing directly to a wood subfloor.
WiFi Electric Radiant Heat Kit, 240V, 32 Sq Ft
Best for: Buyers planning a small electric floor-warming installation beneath tile, stone, or another listed resilient floor covering. This product is an electric cable kit, not a hydronic PEX staple-up system.
The kit includes heating cable, a DHERT104/BW WiFi programmable touchscreen thermostat, and a floor sensor. The thermostat is specified for both 120V and 240V systems and can be programmed through a phone app. The listing describes compatibility with Schluter Ditra Heat DUO peel-and-stick membrane; it identifies a 50.4-square-foot membrane size for this kit.
Why it was selected: It offers a compact electric alternative for a room or floor zone where the buyer is not installing hydronic tubing. Its included thermostat and sensor make it a more complete package than a cable-only listing.
Limitation: Its 32-square-foot heating area is much smaller than the 92-square-foot kit below. Confirm the intended heated area and membrane requirements before selecting it.
WiFi Electric Radiant Heat Kit, 120V, 92 Sq Ft
Best for: Buyers seeking electric floor warming for a larger area than the 32-square-foot kit covers. It should be considered as an electric-flooring option, not a substitute for hydronic staple-up PEX.
The listed package includes heat cable, a DHERT104/BW WiFi programmable thermostat, and a floor sensor. The touchscreen thermostat supports 120V and 240V systems and can be programmed wirelessly using a phone app. The product description identifies tile, stone, and other resilient floor coverings as applications. It also describes the kit as designed for use with Ditra Heat DUO peel-and-stick membrane and lists a 124.8-square-foot membrane size.
Why it was selected: Of the listed electric kits, this one has the larger stated heating area. It may suit a buyer comparing electric floor warming for a larger zone while keeping a WiFi thermostat and sensor in the package.
Limitation: The 120V designation and the thermostat’s 120V/240V capability are different details. Verify the required circuit and installation instructions for the actual heating cable before purchase.
PEX Foamboard Stapler Kit With 1,650 Staples
Best for: Buyers who want a stand-up foamboard stapler packaged with a large supply of staples. The listing describes it for underfloor heating pipe attachment to foamboard, rather than as a heater or a complete hydronic system.
The kit includes 1,650 PVC staples and a magazine that holds 55 staples. Its D-grip handle is designed for one-handed operation from a standing position, and the listing notes use in corners and other tight areas. The tool is described as made with stainless steel alloy and PEEK plastic. The included staples are 1-1/2 inches wide, according to the product information.
Why it was selected: It is a relevant alternative to the Malco tool for foamboard work, especially for buyers who prioritize included staple quantity and a larger magazine load. Compare the specified staple size and board application with your project before deciding.
Limitation: The listing does not identify the same PEX size and foamboard-thickness range provided for the Malco FBSN. Confirm staple and tool compatibility with the tubing and board you plan to use.
Mapei Mapeheat 240V Radiant Heating Mat
Best for: Buyers looking for an electric heating mat beneath tile, rather than a staple-up hydronic tubing tool. Its listed coverage is 21 square feet, and its pre-spaced cable is embedded in an uncoupling mat.
The mat is described as 1/8 inch thick and designed to deliver radiant warmth beneath tile. The listing says it can be set in thin-set mortar over plywood, concrete, or cement backer board. It also describes 120V and 240V sizes across the product range and says the system pairs with programmable and smart floor thermostats.
Why it was selected: It offers a distinct electric-mat installation approach for buyers comparing floor-warming methods. The pre-spaced cable may be preferable to handling a separate loose cable when the planned floor assembly suits the mat.
Limitation: This specific listing is for a 240V, 21-square-foot mat. It is not a PEX product, and the product description does not say that a thermostat is included.
Buying Guide: Choosing A Staple-Up Radiant Floor Heat Setup
Do you need hydronic staple-up or electric floor warming?
Hydronic radiant heating circulates heated water through PEX tubing. Electric floor warming uses resistance-heating cable or a cable mat. They are different systems with different installation components. The Malco and generic PEX staplers in this list attach tubing to foamboard; the GTDsupply and Mapei products provide electric heating components. First decide which system your project calls for, then compare products within that category.
What does “staple-up” mean for your floor assembly?
In common usage, staple-up refers to securing hydronic tubing beneath a floor, often at the underside of a subfloor. The Malco FBSN listing specifically describes fastening tubing to foamboard. That distinction matters: a tool suitable for foamboard should not automatically be treated as a direct-to-wood subfloor stapler. Check the tool instructions, tubing layout, and assembly details before buying.
Also identify whether the design uses plates, insulation, or another specified method to hold tubing and transfer heat. These products do not provide a complete system design. Consult the heating-system manufacturer or a qualified installer for guidance on the full assembly, spacing, water-temperature requirements, and controls.
Which foamboard stapler features should you compare?
- Board type and thickness: The Malco listing specifies 1-inch and 2-inch foamboard and excludes EPS-type board. Confirm that your board matches the stated application.
- Tubing size: Malco identifies 3/8-inch, 1/2-inch, and 5/8-inch PEX. The generic kit listing does not specify the same tubing-size range.
- Staple size and supply: Compare staple length, width, magazine capacity, and how many staples are included. Do not assume that staples for one tool fit another.
- Work position: Both staplers have a standing D-grip design. Consider access to corners, edges, and other restricted areas in your work zone.
How should you compare electric kits and mats?
Start with the required voltage and the actual area to be heated. The two WiFi kits list 32 square feet at 240V and 92 square feet at 120V. The thermostat is described as supporting both voltages, but that does not make every cable configuration interchangeable. Verify the cable’s electrical requirements and the circuit plan.
Next, check the floor covering and membrane or mortar method. The GTDsupply kits describe use beneath tile, stone, and other resilient coverings and identify Ditra Heat DUO membrane compatibility. The Mapei mat is described for installation in thin-set mortar over plywood, concrete, or cement backer board. Follow the exact product instructions for the floor assembly.
Do the listed products make a complete system?
No single item in this selection should be assumed to provide everything needed for every project. The Malco and generic tools are fastening tools, not boilers, pumps, manifolds, or complete hydronic packages. The GTDsupply kits include cable, thermostat, and sensor according to their listings. The Mapei listing describes a heating mat but does not state that a thermostat is included. Check each package’s contents and identify any separately required components.
What should you verify before installation?
- Confirm the heating method, heated area, floor covering, and subfloor or foamboard type.
- Check voltage, circuit requirements, and control compatibility with the exact heating product.
- Use the specified staples, cable, sensor, membrane, and installation materials for the selected system.
- Review the manufacturer’s instructions and local electrical or plumbing requirements before work begins.
- For hydronic systems, have the full tubing layout and supporting equipment reviewed as part of the system design.
Frequently Asked Questions
Can the Malco FBSN be used for staple-up beneath a wood subfloor?
The listing describes the FBSN as a foamboard stapler and does not establish direct-to-wood subfloor use. Confirm suitability with the tool manufacturer and the project design before using it on a different material.
Does a foamboard stapler heat the floor?
No. A foamboard stapler is a tool for attaching tubing to foamboard. It does not produce heat and does not include a complete hydronic heating system.
Are electric radiant kits the same as hydronic PEX heating?
No. Electric kits use heating cable or a cable mat. Hydronic systems circulate heated water through PEX tubing. The installation components and electrical or plumbing requirements differ.
Which listed product covers the largest stated area?
The GTDsupply WiFi electric kit listed for 120V specifies a 92-square-foot heating area. Its listing also identifies a 124.8-square-foot Ditra Heat DUO membrane size; those are separate measurements.
Can I use any foamboard staples with either stapler?
Do not assume so. Compare the staple dimensions and tool requirements with the foamboard and tubing specifications. The product listings do not establish that the two staplers use interchangeable staples.