Bob meets with Peter Merianos and the crew from Coastal Heating and Air Conditioning who are fabricating the AC ductwork on site. With the Kenmore air handler already installed in the attic, the crew begins assembling the ductwork using five-foot lengths of pre-crimped sheet-metal ducting as the basic material. The sections snap together and are secured with sheet-metal screws and foil tape. To add a new line off the main trunk, the crew cuts a hole into the the trunk with a special tool. A starting collar from which the new line will extend is then inserted into the hole. The ductwork is insulated using vinyl wrap, which is a one and a half-inch vinyl-coated fiberglass blanket.

Bob walks through the Manhattan Brownstone floor-through apartment with project manager Chris Vila, looking first at the ductwork that has been run in the ceiling for the forced air heat. He then joins John McEvoy of Thorough Construction for a look at the drop ceiling installation they will be using to hide the ductwork and mechanicals in the ceiling. This Chicago bar system allows the crew to hang a perfectly level drywall ceiling instead of following the uneven pattern of the existing joists. First an anchor is screwed into the joists. A pencil rod is then fitted into the hole in the anchor and bent to hang from the joist. A lasar level marks the exact position for the kelly clips that will hold the main stays or block irons in place. The Chicago bar is then clipped to the block irons with a spaghetti clip to create a grid for the new drywall. The drywall will be screwed directly into the suspended Chicago bar.

Bob joins Paul Costello and Lou Mazzini in the old dairy building to discuss the SpacePak high velocity hydro air HVAC system that's being installed in both the house and dairy. The system will provide both heating and cooling. In the winter a boiler delivers hot water to coils over which air is drawn. This heated air rises and is distributed at high velocity through plenum ducts running around the perimeter of the structure and on to room outlets through to 2" diameter sound attenuating tubing. The systems uses insulated fiberglass ducts which are coated on the inside to prevent mold and other growth. The system creates a pressure center in the room with a differential of two degrees between floor and ceiling. Cooling is accomplished by the same system only the air passes over different coils cooled by a refrigerants from 5-ton American Standard condensers situated behind the dairy. Domestic hot water will be provided by a very efficient indirect hot water system. The SpacePak system is particularly well-suited to restoration/renovation projects where space for ductwork is at a premium.