[janetwilson]

I am thinking of buying a piano (Petrof 116), which has a slightly heavier touch than many pianos, in the lower part of the keyboard... not sure if I will get used to it, or if it will make my hand ache... any advice?

[Gill the Piano]

If it's a new piano you can ask the dealer to send a technician who can regulate it for you, perhaps on its first tuning. Any competent technician should be able to do this, so your own tuner would be able to do it or recommend someone who can.
Sometimes a heavy touch can be due to tight centre pins, but this shouldn't be the case on a brand new instrument. If so, the dealer should again sort this for you.
Have you changed from an old piano? The problem might in that case be that your old instrument was a bit sloppy (technical term - are you impressed?! )
and the problem lies in the comparison between the two rather than squarely with the Petrof. Barrie knows more about all the different foibles of new pianos, so I daresay he'll be of more help than me. Have fun!