Q for those who grow in freezing winter climates in a basement

I'm finishing up my designs for my basement grow.
In the winter time it gets probably close to lower 40'sf and high 30's in the basement. My pipers have never frozen over in the winter months, and I have never needed insulation around the copper water lines.

Originally I had planned on adding radiant heating to my grow space to help heat the space for lights off cycles. However, for those in the know and for those who do this type of grow in basements, I was wondering how much heat energy the concrete slab/ with tiles for a floor hold and store for the night cycles.

What kind of temps do you experience in the night time? I have about 1000 budgeted for the radiant heat, but am thinking about not doing it now if it's unnecessary. Any input on this is much appreciated.

Thanks

what kind of lights are you planning on using? HID or CFLs or what?

1000 watt hps in a 4x4 table but not sure if I will partition around that table area but the flower room total is about 5.5ft x 7 ft. Also there will be a 400 watt over the mother area in about the same area. Again , not sure if I will partition that into a smaller area or not.

I'm facing a similar situation with my basement grow. For now I'm just planning on putting some styrofoam under my grow bags to insulate the cold concrete and an area heater near the intake of my grow tent. Hopefully it won't get any more complex that it needs to be.

If you have an air conditioner/heater duct line running through your area then you can cut a vent in it to help heat the room.

Good tips but I feel that will be a guessing way to do it. I'm planning on having a controlled environment. Worse case scenario is that I add the radiant heat and have it set to 70 degrees when lights are out. And occasionaly it will run. Ideally, the tiles and concrete will store a lot of the heat. This is why I wouldn't recommend the insulation board on top of the concrete. Also by cutting the heat vent from the house, that runs a risk of introducing odors to my HVAC system which is the last thing I want.

Right now we have unusually high temps for this time of season. So my intital reads on the temp as I build aren't getting low enough to prepare for what it will be in a couple of months. Like I said, I have it budgeted to do this part of the project, so it might be best just to plan ahead for it. Along with this I do plan on putting a small AC unit in the wall there for the summer times. I'm hoping to keep my room at 70-75 degrees.

Thanks again for the feedback guys.