Rust never sleeps

Newer furnaces create condensation in the winter and the A/C creates condensation in the summer.   If the condensation is not draining properly, it will back up and cause damage by rusting out the components of the furnace.   This is why it is so important to have your furnace and A/C checked annually by a HVAC technician, even when the equipment is "new".

Owners should disclose known defects

Sellers are required to disclose known defects ... typically by using the disclosure form the State of Ohio has put together for residential real estate transactions.

But this one I saw today is pretty good too !
In my experience, sellers are o.k. with most issues, as long as those issues are disclosed.  It is the surprise issue, the issue that is found but not-disclosed that can really upset the buyer.

Air Conditioning in the Spring

You may be tempted to turn on the Air Conditioner when we have the first hot day in Spring.  But remember this rule of thumb.  If the outside temperatures are still in the 40's or 50's overnight, you shouldn't turn on your Air Conditioner without risk of damaging the compressor.

So, when it is hot during the day, open the windows and turn on a ceiling fan... but be patient and wait a few more weeks before you crank the A/C.