I would verify with the manufacturer that radiant heat is allowed with their product. Some do not allow it and it will void the warranty.

Good point, thank you!

Assuming radiant heat is allowed, what are your thoughts?

We do still have a couple months before floors would be going in, so if it turns out the flooring we've selected doesn't jive with radiant heat, we could look into other options.

You're not doing electric radiant under vinyl. It's too hot.

I checked the speech sheet for the LVP we're looking at, and they do specify that radiant heat is allowed, just that thr temperature should not be set higher than 85F

All electric runs hotter than that.

They CAN run hotter.....but they also have temperature sensors in the floor and a temperature controller.

OK, melt your floor using technology meant for tile and waste a couple of thousand redoing it. Plastic is a terrible choice for a bathroom anyway. Or anywhere. Choose wood and tile. They will never downgrade the value of your home.

" just that thr temperature should not be set higher than 85F "

Is that enough warmth for you? Really only supposed to warm the floor anyway, not heat the room. From my perspective I would not go to the expense for radiant with anything other than tile as that is inherently a cold feeling floor.

Hydrionic can set the output loops for a specific temperature, and increase the circulation speed to achieve better heat transfer. Electric is just like an electric oven. It's ON or OFF. The temperature is an average between the on and off periods. The on period periodically produces heat much higher than 85, and then shuts off, just like your oven. You should never put vinyl over electric heating cables. It's a luxury choice upgrade covered over with cheap temporary floors. It's designed for a higher end material with good thermal mass, to facilitate heat transfer. It's designed for tile, or natural stone, to cover it..

@millworkman - the heated floor was one of my fiancees want list items, but since we decided on LVP, and now knowing this temperature limitation of the flooring, she's leaning towards not doing the heater.

@Lomo - I see you've decided to be the token "don't use LVP" person in this thread. There's always at least one of you!

Vinyl flooring is a perfect choice for an entry level build. It behaves better than carpet, and is more cleanable. Better still is sheet vinyl, which is actually waterproof if sealed at the walls, and not lip service marketing waterproof. But the marketers have had their way, and somehow convinced people that sheet vinyl is terrible, while pieces of vinyl are not. 🙄

Nothing has ever done a bigger disservice to the homeowner pocketbook than when the brilliant marketers attached the word ”luxury” to an entry level material. Because it is what it is, and isn’t what it isn’t. It is the opposite of luxury or upscale. But it allows builders and the rest of the construction food chain to earn much larger profits by labeling it that.

If you are building a home that is upscale enough to do heated bathroom floors, it should not be full of plastic floors. The two are not at all compatible technically, or in material level. Upgrade the floors and the rest of your choices, or downgrade the ned to be paid out of pocket expensive luxury choices that don't fit the home you are building.

We have one medium/large dog, and will likely get another once we're settled in to the new house. We currently have engineered hardwood....with lots of scratches. And before you ask (because this came up in another thread), yes, we trim our dog's nails.

We're not doing wood or engineered hardwood, and dealing with scratches, and refinishing every few years to keep them looking nice, just so we can recoup a few thousand more dollars in 15-20 years when we sell this house. Other new construction/renovations in our area and price point have LVP and are still selling like hotcakes.

It's odd that you point out that vinyl behaves better than carpet, and is more cleanable, so therefore a better choice than carpet. But a product that behaves better than wood is not better because it's a plastic? What's the logic there?

Heck, I'll also argue that it performs better than tile, because it doesn't crack, and it isn't cold to the touch in winter

It is odd that wood can last hundreds of years in many homes, yet in some people's home's, they consider it "temporary" and treat it as such. If you are getting scratches in wood from your dogs, their nails are too long. That's not an opinion, that is a fact. People who do not dremel their dogs nails every week allow the quick to grow out, and the nails are too long. Ask your vet how to grind them down. Ask @Ninapearl about her Danes. Which are bigger and heavier than your dogs, and do not scratch the floors.