Oversized air conditioner and furnace

[Kevin Suksi]

We have a home that we are flipping that currently does not have air conditioning. To add it, we must replace the furnace because the house has an addition, and the existing furnace is not powerful enough to support air conditioning.

We may have lucked into a solution though. I know someone who has an A/C unit and furnace that are both around 5 years old that I can get for $800 as a package deal.

The issue is that they are coming out of a significantly larger house. I don't know exactly how much larger, but I would estimate that the house the units are coming out of is 1800 to 2000 square feet. Our subject property is a 1250 square foot bungalow.

Any opinions? I read elsewhere that this is a bad idea because if you go with overkill on the A/C unit, it will cycle off and on too much. Not sure if this is true or not. Any advice would be appreciated.

Thanks!