I try to poke my head in all sorts of places during an inspection, including under the kitchen sink. Poking around is what I get paid to do!
On a recent occasion, during an inspection in Ferndale, I discovered a crack in the garbage disposal appliance casing within the kitchen sink base cabinet. Upon closer look, I could see this was an older disposal and was not repairable, so I advised the replacement of the appliance.
If you have questions or comments about heating issues or home inspections in general, tweet me (@AIHomeInspect).