Hello,
OK so the simple answer to your question is YES it can be done.
I have developed a tortoise environmental control system for another client that wanted to be able to monitor and control the heating and ventilation of his tortoise house. The system also used RFID tagging to be able to tell which and how many tortoises where in the house so that it could be locked up at night to prevent predators entering. It had the ability to run a temperature matching pattern where it would adjust the internal temperature according ot the outdoor temperature to follow a predefined pattern stored on an SD card. it was only able to follow the curve to a resolution of 15 mins. given the hysteresis of the change of temperature and the resolution of the PID used to control it this was sufficient for him.
The system was monitored through a web interface on the master system and used radio link to the actual tortoise house.
What is your budget & timescale for this project.
Take a quick look at my website (WWW.EmbeddedAT.com) to see the other sorts of projects I get involved in and if you think my skills are a good match for your requirement or even for a chat about options please drop me an email.
Cheers Pete.