I have just had a basic Vermont Castings Radiance gas stove installed last week, and tomorrow I am having a Marquis by Kingsman Solara gas insert installed in another room. I am planning to have them install programmable thermostats for both of the units tomorrow. Is this possibly a mistake? Is it possible that I will have problems down the line and regret letting them add those thermostats? Is it best to keep the units simple and just use the on/off switch to turn them off and on? (I sometimes think that it is good to avoid 'extras' - I am a single woman so like to keep things basic usually - less need for repairs in the future, sort of like not having power windows in your car because if that system breaks down in the future you can't open or close the car windows!)