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What is the acceptable deflection for a floor that will be tiled?

“Traditionally, the accepted minimum requirement for floor rigidity is L/360 – before the tile underlayment is installed. The L/360 standard means that the floor should not deflect more than the “span” divided by 360. If the span of the joists is 10 feet (between supports), then the deflection should not be more than 1/3″ between […]

Can you install Ultralight Insulation Boards under a Foil Heater System?

Yes, you can install Ultralight under Foil Heater Systems. While the Ultralight Insulation Board will deliver the best performance, the Warmup® Insulated Underlay may also be used as a more economical option for installation under a Foil Heater System. Warmup® FOIL systems are used to heat rooms under laminates, floating wood floors, and carpets. Refer […]

What is the proper way to install Ultralight Insulation Boards?

The perfect installation for Warmup Ultralight Insulation Boards would be a tight and staggered seams. Instead of lining up the edges of the boards perfectly, it is extremely important to offset them a bit to provide a thermal break. A thermal break is a barrier that stops heat from moving easily between inside and outside. When you have a good thermal break, your insulation works better, which means your home stays warmer without needing to turn up the heat all the time.

Can I install a towel warmer bar horizontally?

Warmup recommends towel warmers to be installed horizontal only. Towel warmer bars are designed to evenly distribute heat across the entire surface of the towel. Towel bars work most efficiently when towels are hung flat against them. Hanging a towel vertically reduces the surface area of the towel that’s in contact with the bar, which means it will take longer for the towel to warm up, and you might not get the desired warmth. When you hang a towel vertically, only a small portion of the towel comes into contact with the bar, resulting in uneven heating. In addition, towel bars are designed and tested to be installed horizontally, according to our installation manual. Installing them vertically could potentially compromise their structural integrity and safety.

What is the minimum clearance for heating cable(s)?

The minimum clearance is 2 inches all around per our manual, with the exception of the wax ring and fixing bands. The wax ring should have a minimum distance of  6 inches and the fixing band (metal version) should have a minimum distance of 3 inches as instructed in our manual.

What type of wood subfloor is required for Warmup’s Peel-and-Stick products?

There is no subfloor requirement specifically for Warmup’s Peel-and-Stick; it can even be installed over Epoxy. However, the subfloor is required to be: Level Smooth Clean Warmup recommends the smoothest plywood possible, such as sanded plywood, with a primer* for the best results. If your subfloor is OSB (aka chipped board), it is required to […]

What kind of floors can I put on top of electric radiant heat?

Today’s flooring choices are endless, but when choosing a floor covering to go over your Warmup heated floor, review the R-value and pick flooring that has an R-value of one (1) or less. R-values higher than one (1) would be considered an insulator that would trap heat in the floor and cause overheating (e.g., certain […]

What is a Dual Cable Tester and how do I use it?

The Dual Cable Tester monitors up to two cables concurrently and monitors the integrity of both the core to core and core to ground resistance. Throughout the installation, this device will provide a precise resistance reading(s) and flash/sound an alarm if the circuit(s) is interrupted.

What is a Warmup Watchdog and how is it used?

Warmup’s Watchdog is simply a continuity tester. When installed correctly to a heating cable and turned on, the Watchdog will continually look for a path for electricity to travel. If there is no path for electricity to travel, the Watchdog will sound an alarm indicating there is a break in the circuit.

Should I insulate underneath my snow-melting system?

Adding insulation both under a slab and near its exposed edges reduces heat loss into the ground and allows the slab to heat more quickly, which lowers total operating costs.

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