Garage Drain/Sump with Heated Slab - Is It Necessary??

[reddeerguy2015]

Would a person need a sump/drain in a garage with a heated slab and radiant heat??

Vehicle runoff in winter in the concern. Don't want water pooling everywhere. Vehicles will not be washed inside.

I've heard conflicting ideas that it's just not necessary - having a heated pad and a heated building the water will just evaporate quickly. True??

Plan on running a de-humidifier and building will have an exhaust fan, so shouldn't run into humidity problems.

Thoughts?? Interested in hearing from those that have a heated slab (in addition to either radiant heat or forced air).

Do I need a sump ?? Thanks AO.

[MountainTi]

Personally I wouldn't put a slab in without a drain. Hate to kick yourself for not doing it afterwards.

[R3illy]

your drain wont cost a lot If your doing those other renos. It would be silly not to spend the extra $1000 on the drain.

[Coiloil37]

The drain in my garage is my favorite feature. I wouldn’t want a garage without it. In my experience, no the water won’t evaporate as fast as you bring it in.

[CaberTosser]

If you're heating the slab and using a condensing boiler to do so you're going to need a drain for that because the boiler will produce exhaust condensate that needs to go somewhere. Of course this depends on your selection of heat source but I'd not build without a floor drain and sewer.

[Blastoff]

It’s a must even with no heat you will get lots of the vehicles, I have a drain and no heat she need to be emptied very couple of weeks, I use pail and toss outside