Where is the best location for an outside heat pump? I am building a new house and have an area under the back porch that is walled on three sides but open on one side. The area is 4' wide by 10' long with a concreted floor with drains and about 4' of overhead clearance. Would this be enough room for the installation of the outside unit? I am thinking that it would be a good location as it won't be near any bushes, it is sheltered and best of all, I won't have to mow around it. What are the pros and cons of this location?