I’m remodeling a small sun room into a home office/guest room. Currently the room has no existing heat source and an ugly vinyl floor over wood subfloor.

I’m seeking green solutions for heating and flooring.
I’m also curious how to calculate efficiency of radiant ELECTRIC heat versus using a space heater. We’re in California and require heat 3-4 months p/year.

I would love to put a cork floating floor over Electric radiant heat, but wonder if this is efficient. Trouble figuring out r-value of cork from mfr. Hear maybe cork takes longer to heat up but also holds heat nicely? I don’t want tile, but might consider other easy to install options that could work w/ radiant.

Also open to info on dif types of electric radiant.

Thanks, Sam