Are you considering a vacation away in the upcoming months? Sounds great: but remember that your insurance policy may not cover damages caused by water pipes bursting if you are away from home for more than 4 consecutive days during heating season. Rules vary from company to company so check with your provider what their rule is.
Probably the best plan is to have a competent person enter your home each day to make sure all is well with heating system. Another good plan would be to shut your water supply to home off and drain the pipes. That way nothing will happen.
Hopefully, you will enjoy a safe, happy stress free vacation away to get recharged!