Attic hvac units are potentially inefficient the biggest complaint about attic hvac units is that they don t really make sense.
Attic hvac not cooling.
The more leaks your air ducts have the less cool air your home gets.
Air ducts with leaks allow conditioned air to escape into unconditioned areas i e.
Why your ac unit is not cooling when you have a running compressor but your air conditioning unit is not producing cool air there are potentially a number of things that could be causing this problem.
Follow the ac manufacturer s directions.
If you don t worrying about how best to keep the attic cool is a bandaid on a self inflicted wound.
Shut off the power to both the exterior and interior units at the breaker panel.
The first areas that should be checked and cleared can be completed easily and quickly.
If you don t feel comfortable working inside the units it s time to call a pro but if you d like to try cleaning the coils on your own.
Air conditioners are complicated systems that need the perfect combination of temperature airflow and pressure to work properly.
As such it can sometimes.
Attic hvac systems also require shorter ducts.
Here s why that is a good thing.
When your air conditioner s not cooling your house it s a big problem especially if you live in florida.
Again i m assuming that you re not considering a sealed attic lowering the temperature of an attic that contains ducts can reduce your air conditioning costs.
Having insulation in your attic can help you save up to 20 in heating and cooling costs.
In more cases than not a 3 ton ac with the ducts in the attic has a ton or so of load that s just from the location of the ducts in the attic and the associated duct gains leakage etc.
If your attic tends to get hot it can make your air conditioner less efficient.
Not every home has a hatch that is easy to access.
And having insulation in your attic keeps the area at a consistent temperature.
There will be less duct leakage sometimes air conditioned air will seep right through your ducts and become useless instead of heating and cooling your home.
Each one will be on a separate breaker.
In existing homes the question is important.
Attics are for the most part unconditioned meaning a leak here could significantly reduce your home s overall efficiency.
Air conditioning systems are complex so there are many places your ac can fail along the way.
You want high quality insulation in your attic as it will ensure that the cool air from your air conditioner can t escape your home.
The remaining 2 tons of capacity is at least 1 5x oversized for the actual 1 load.
