I have a Whitfield Profile 20 and want to install a programmable thermostat. I don't think a temperature based thermostat would be the best bet though. I would like to program it based on "high/med/low" for certain hours during the day. Is there a product like this? I just feel like I am wasting pellets running the thing 24x7. It is a real haste to turn the thing on and off.