Bottom Heat + New Roots + Heat Mats Alternative.

[empiref]

Hello All,

I'm new to this forum. My name Is Johnny and I live in Lebanon.

I would like to ask for your opinion on the following matter.

Because of the early spring weather, my orchids have been placed outdoors daily, they receive direct sunlight from 9 am - 10 am, and they indirect strong light in the outdoor shade from 10 am - 3 pm, and afterwards they are brought indoors.

I read on this forum that bottom heat induces the production of new roots and helps the plant get established faster when an Orchid is placed in a new Medium, in my case S/H (hydroton). I repotted 3 Orchids today in Hydroton, one Oncidium and 2 Phals.

I have hot water heating system that runs in my apartment, the boiler is below the apartment, and the main hot water pipe runs under my bedroom floor, when the boiler is on (about 4 - 6 hours) each day, the floor where the hot water pipe runs under gets really warm.

Is it safe, to place the S/H orchid pots on the warm floor as a replacement for heat mats? or will this heat the water in the pots' reservoirs and cause damage to the plants?

Please help.

thanks.