I had some complaints with the performance of my a/c last summer… Since the cooling idea is only several years old, I was especially distraught plus unhappy. There was a noticeable difference in room temperature from 1 room to another. The a/c ran always plus yet the beach house felt boiling plus muggy on especially sizzling afternoons. There was a significant amount of dust floating in the air plus a musty smell, but my electric bill was quite a bit higher than expected. When I researched my list of issues, I l gained that the source of the several concerns was most likely the HVAC duct. I read that if registers are not sealed respectfully,air can be distributed to areas where it’s not supposed to go. Not only does this cause the unit to work much harder to combat the temperature changes, but it puts added wear on components, increasing the chance of malfunction plus increasing lifespan. The issues with the registers can also allow pests to get inside plus create further destruction. Another possible complication is dirty HVAC ducts; Dust, dander, pollen, decomposing rodents, bugs plus all sorts of disgusting things can be concealed inside the pipes, clogging the pathway. Because the cool air is jammed from reaching the several rooms, comfort is disadvantagely impacted. I had noticed that the dirty air was irritating my dust sensitivities. My teenagers were continually sneezing plus coughing plus my hubby complained of headaches. Every time the a/c started up, it was spreading harmful toxins throughout the breathing air. When I had a licensed Heating plus A/C serviceman take a look at the duct system, she recommended both cleaning plus sealing. She pinpointed leaks at the seams that were allowing the conditioned air to escape. Although the several duct services were plenty upscale, they made an immediate improvement in the operation of the a/c.