High efficiency central air conditioning.

  High efficiency natural gas forced air heating.

  Electric and gas service to range.

  Gas water exchange system.

  New energy efficient Marvin wood windows with low-E glass.

  Honeywell electronic air cleaner.

  Individual 100 amp circuit breaker electric service.

  Masonry walls are 12 inches thick.

  Exterior photocell light fixtures on garage.

  Automatic underground lawn irrigation system.