Floor for a basement gym - eps plus underfloor heating?

[hemmafixaren98]

Planning to create a workout room in our unfinished basement.

• Currently, a slightly rough concrete floor (don't have drawings but don't think it's insulated)
• Ceiling height - about 243 cm (would like to maintain as much ceiling height as possible - for jumping during workouts, using a cross-trainer, etc.)
• Estimated floor area 16-17 sqm
  
• Walls of Leca/light concrete. Considering: [existing Leca] + air gap (1cm?) + metal studs + OSB + drywall

Regarding the floor, I have received tips/suggestions for:

• eps + self-leveling compound (with reinforcement)

This should be a good base. Then, you can choose whether to add water-based underfloor heating and, e.g., tiles above it?

Questions:

• Do you think it will be good with eps + self-leveling compound? What thicknesses (heights) are recommended here?
• Can you skip tiles and only have self-leveling compound/concrete? Maybe you'd prefer epoxy flooring and some exercise mats instead? (Considering the cost here, but would preferably also avoid tiles...)
• We're debating whether to take the opportunity to install pipes for water-based underfloor heating. Perhaps not for immediate use but to avoid regret later if the floor gets too cold.

The main idea is to use the room 2-3 hours per day during winter specifically for exercise. Therefore, we don't want "to heat for the crows" and have it heated all the time. Considering a Mitsubishi VL-50 and possibly an electric radiator (yes, not ideal these days given electricity prices - but as mentioned, want to heat up the room quickly with short/infrequent use)

Grateful for all feedback

 

[Elvvsbygg]

I have laid 20 + 20 mm EPS, on this about 3-4 cm of coarse concrete with reinforcing mesh and Wirsbo 12 mm underfloor heating pipe, then tiles on top of that. The floor was cast in a laundry room and has worked well for 12 years now. I think concrete is easier to mix and level evenly, and it is cheaper.

 

[hemmafixaren98]

Thanks for the tip Why 20+20 and not 40 with eps?

I'm pretty sure about EPS below - however, I haven't decided above. It's a challenge to get isolation, low height, and for them to withstand some jumping/training as well... (and preferably quick, but short and sporadic warming)
I saw that Wirsbo/Uponor has a product sheet of 233 pages... Not everything is relevant to read through, of course, but still quite a bit to go through.