Beware of company;s who work on or replace furnaces! Please check them out carefully, If I save one person from going through the Hell of being poisoned by CARBON MONOXIDE POISONING, then I have got my point across! We had a new furnace installed and instead of hooking the new one back up to propane inwhich the were certainly aware of because they unhooked the old one and had to shut off the propane. They installed a natural gas orphas which caused the heat exchanger to crack and also make the furnace extremely hot to touch. We knew something... read full review »