In a country where more than half of the country is covered by chimneys, many are taking a wait-and-see approach, wondering how long they will be required to clean up their buildings.
But for those who have been waiting for more than a decade to clean out their chimneys and make their homes more air-tight, that hasn�t happened.
The US Department of Interior has said it is considering requiring more of them to clean, but many believe the cost of a single unit would outweigh the benefits of reducing carbon emissions.
So how much of the work should be done at home, and how much done by contractors and others outside the US, has become a hot topic.
While the cost to do a home chimney sweep can be steep, the benefits far outweigh the cost, according to experts.
They say the work is a necessity for most people in the US.
The American Lung Association, for instance, has estimated that nearly 1.4 million Americans are sickened every year due to the smog that comes with burning coal, and that costs more than $400 million a year in lost productivity and health care costs.
The National Environmental Health Association, a coalition of health groups, estimates that 1.2 million Americans die each year from air pollution caused by burning fossil fuels.
To put that in perspective, there are approximately 15,000 deaths a year from the same disease in the UK, according the British Medical Journal.
And according to the World Health Organization, nearly one in five deaths in the United States are from respiratory diseases caused by smoking.
Even if the government does take the work outside, experts say it will take years for most Americans to have cleaned up their homes.
They have little incentive to do it right away, since most of the costs of cleaning out a chimney come from other people.
And that makes it even more difficult to get more people into the field, says Mike Wills, an assistant professor of civil and environmental engineering at Stanford University.
Many of the best people who are doing it right now have very little training in the technology, and a lot of it is really just about how to put out fires.
So they are kind of stuck.
And I think that the way they have been trained, and there are some great things about the work they are doing, but they are very far from the best.
In the meantime, the work could take years to complete, especially if contractors are involved.
A few years ago, a chimneysaver in a nearby state was awarded $1.2 billion for the project, and his company is still struggling to find a contractor willing to take on that project.
He hopes that the federal government will take the project seriously enough to take the time to do the job right, but he has to do more to get contractors involved.
He has to find more contractors, he says, and get them to be certified.
It is a daunting task, he acknowledges, but the people he has worked with are trying.
And they are trying, Wills says.
The chimneysawer was part of a team that cleaned a house in the middle of the night in 2014.
He was not alone.
A team of about 30 people from several different states had assembled in the house.
They had spent the night at the house, with the lights on, but nobody there to see the work.
They were going through the house to clear the chimney, which is what the owner had wanted them to do.
They went down the hall, down the basement and into the living room.
The house was still there, but it was a mess.
It had been left on fire, with a few charred items hanging on the walls.
As the team worked, Wils saw a familiar face.
It was a couple of guys who had been working for years, doing the same jobs as him, with very little equipment.
They made a few scratches on the wood, but nothing significant.
The team went back upstairs and started cleaning.
The owners were also in the kitchen, cleaning.
Wills and the others were surprised to find that they were cleaning up a chiming room.
They also noticed that the wood had gotten a bit browner.
They decided that they needed to put some insulation around the chiming, and the chimesaver, as well as the other chiming workers, joined in.
By the time the team had cleaned all the wood and the insulation around it, the house was looking almost brand new again.
They called the house in, asked if they could be a part of the project.
They wanted to be able to clean the chimings themselves, so they brought along their own tools and equipment.
And the guys who clean the wood said that they loved it.
They loved the process.
The guys who do the work on the outside also loved it, and they wanted to