A comfortable and healthy home ambience needs a reliable and efficient heating system. most homeowners as well as business owners know that regular maintenance of the furnace by a reputed HVAC professional is a key way to keep the furnace in best condition. But even a well-maintained and healthy machine can go wrong. Though servicing comes handy to bring the furnace back to its original efficiency level, requirement of new furnace installation in Brooklyn might not be a far-fetched idea. And here are the signs that show that the furnace needs an immediate service and repair or a replacement.