The average cost to replace hvac ductwork is around 285 per duct run and is based on the number of hvac duct runs to be replaced length of each run type and size of the replacement ductwork.
Hvac cost to run line from attic to basement.
Average cost to install ductwork is about 1 800 3 300 60 linear feet of aluminum ductwork insulation 5 vents.
Wire from the basement to a first floor outlet.
The average cost to run a gas line is 355 to 743 whereas complex jobs are 1 000 and up new gas line installation costs 12 to 25 per linear foot including labor materials piping and permits costs depend on the distance from the gas supply complexity and type of pipe used.
For a basic project in zip code 47474 with 1 piping run the cost to install a drain line starts at 473 586 per piping run.
A basement is below and an attic is above the main part of the house.
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Hvac replacement costs 4 820 to 9 350 on average which includes a new ac unit and a new furnace.
Cost to run a gas line.
When solid ducts in walls and ceilings must be replaced the cost can rise to 550 per run or higher.
From down in the basement the bottom of the floorboards.
Assuming your attic is unheated putting the furnace up there unless you build a utility room for it will also be less energy efficient both because it is having to push the hot air down into the house the opposite way it naturally wants to flow as hot air rises the furnace waste heat will be largely lost to the outside air rather than.
If that s correct i would estimate about 2 registers at 20 a piece plus some sheet metal to construct a connector to the trunk so maybe 50.
Wire from the attic to a second floor outlet purple.
A two room addition on the 1st floor has limited attic space and a 4 crawl space.
Installing attic insulation costs 1 700 to 2 100 and may be a good project to do at the same time.
However i have two questions if i want to centrally air condition my entire house.
Wire from the attic to the basement using a second floor hvac return green.
Wire from the attic to the basement near the flue blue.
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Hi mary it sounds like you re just asking if how much to tap into an existing trunk line of the hvac and install a few registers.
Cost to replace ductwork in an attic the price to replace ductwork in an attic ranges from 500 to 2 000 depending on the size of the home and your existing system.
It s easy to see your point about eliminating ductwork from the attic.
For a first floor installation you will be drilling up through the floorboard and then sole plate.