Calculate the size of furnace/heater you may need for your home.

HVAC Equipment size finder calculator: http://www.hvacopcost.com/equipsize.html

Is it important to you to know if someone has previously passed away in your home? This link "Died in house.com"  provides a search option for a fee (about $12) to find out the details for you: https://www.diedinhouse.com/