Anonymous wrote:I had the same experience for Sear Duct Cleaning. The way they came and checked the HVAC system and said about the mold thing. I refused because was not prepared for the bill of 1140/- instead of $ 114/-. The most important thing to inform is after their visit, my electricity bill is doubled, For the last three years, my bills were consistent, but now I don't know what that guy has done to my system, my monthly electricity bills are too high. I wish someone can help me with that.
Anonymous wrote:Anonymous wrote:Anonymous wrote:Anonymous wrote:Your first mistake was calling a company for air duct cleaning. You’d already told them you could be scammed. From there it was just a question of how far they could take you.
Sometimes duct cleaning is necessary, such as after construction/renovation in the house.
Debatable
Not in my case, I saw the ducts, they were gross. It depends on the amount of dust generated and how well the crew contains it.
Anonymous wrote:Anonymous wrote:Anonymous wrote:Ok verdict? Air duct cleaning never needed?
Without doing research, I would guess no unless something very unusual is going on. While dust etc can collect on the interior walls of a duct, it will remain there. Air velocity at the wall of a duct is low (almost zero since it's a boundary), so interior duct walls are always "dusty." You need turbulent flow to scour the walls and for rigid duct systems that's uncommon IMHO. For mold growth in there to release spores, you need damp. In winter, with low humidity and high temperature air, that doesn't happen. In summer, the cool air has already dumped the moisture at the evaporator.
Cleaning the interior coils is something you should do periodically. It gets damp, collects dust (because filters aren't perfect) and will sit there wet after the blower shuts down.
Any dust stuck to the walls of your ducts will stay here. Unless you bang on the ducts while air is going through it. Duct cleaning is a huge scam. You would need to send a tiny little creature in there with a brush to crawl through the entire length of your ducts and scrub it off and collect it. UV lights in a duct DO NOT DO ANYTHING! You can kill mold and bacteria with UV light but it's not going to do anything to the air passing through. White stuff in a humidifier is lime deposits from the minerals in your water. Use a water softener and you won't have that (but you will have salt deposits). Most mold remediation is also a big scam. There are certain types of mold that are deadly out of the 100s of molds out there. It's highly unlikely you have that kind of mold. Mold needs a moist organic surface to grow. Get rid of the moisture and mold goes dormant. Or, pay someone to kill it and it will just return again if you don't address the moisture problem.
185.00
Anonymous wrote:Air duct cleaning is always a scam. No one should be surprised they try to scam you further.
That is exactly how mine is installed the and only way that is effective.Anonymous wrote:Anonymous wrote:Anonymous wrote:Anonymous wrote:Anonymous wrote:Ok verdict? Air duct cleaning never needed?
Without doing research, I would guess no unless something very unusual is going on. While dust etc can collect on the interior walls of a duct, it will remain there. Air velocity at the wall of a duct is low (almost zero since it's a boundary), so interior duct walls are always "dusty." You need turbulent flow to scour the walls and for rigid duct systems that's uncommon IMHO. For mold growth in there to release spores, you need damp. In winter, with low humidity and high temperature air, that doesn't happen. In summer, the cool air has already dumped the moisture at the evaporator.
Cleaning the interior coils is something you should do periodically. It gets damp, collects dust (because filters aren't perfect) and will sit there wet after the blower shuts down.
Any dust stuck to the walls of your ducts will stay here. Unless you bang on the ducts while air is going through it. Duct cleaning is a huge scam. You would need to send a tiny little creature in there with a brush to crawl through the entire length of your ducts and scrub it off and collect it. UV lights in a duct DO NOT DO ANYTHING! You can kill mold and bacteria with UV light but it's not going to do anything to the air passing through. White stuff in a humidifier is lime deposits from the minerals in your water. Use a water softener and you won't have that (but you will have salt deposits). Most mold remediation is also a big scam. There are certain types of mold that are deadly out of the 100s of molds out there. It's highly unlikely you have that kind of mold. Mold needs a moist organic surface to grow. Get rid of the moisture and mold goes dormant. Or, pay someone to kill it and it will just return again if you don't address the moisture problem.
I believe UV lights can be effective if they shine on your evaporator coil. That's where the moisture is.
That is not how they install them.