Need some ducts hooked up to diff furnace

Denver CO

Description

I had two furnaces instead of one. But I really need just one furnace to heat up the whole house cause it has 120,000 BTU and it is 2400 sqft house. So one furnace was disconnected. But the guy who disconnected the furnace is busy. So I need someone to come and hook up the ducts from the furnace that was removed to the larger furnace. It is connecting 1 return. and 3 supplies. Duct to the house is already run, only other part of the ducts need to go to larger furnace.