Quote:
Originally Posted by nyclicker
I'm looking for feedback from anyone who after enclosing the lanai added air conditioning supply ducts from your existing unit and if it was sufficient in cooling the area.
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We enclosed and added approx 400 aditional sf to our home and used our exisiting heat/ac and have no problems. However, it s just not that simple. The county required us to get a Heat/ac survey that takes into consideration the direction of the new enclosed room(s), window exposure, type of windows (ie Low-E insulated), the amount of run from your furnace, the exisiting size of your Ac unit. Since our house as built was expanded we had a 3 1/2 tom AC unit where as most of the homes our model with no expansion were only 3 tons. After ok from the county, they ran a new flexible duct from the furnace to the center of the house, set up a collection box and then had 4 separte line (vents) run from the new collection box. The new room gets the same amount of air flow as a bedroom or kitchen area and all has been working well. Also Had to insulate the enclosed lanai area. The key in our case is that we already had a bigger AC unit than most homes.