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Bob visits a Heat n' Glo showroom where Ross Morrison shows him a variety of direct-vent gas fireplaces. With a sealed glass chamber there is no interplay of of room air�no products of combustion will get into the room and it doesn't use any of the the room's already warm air for combustion. The fireplace inserts come with ceramic fiber logs. When the flames hit the logs they produce a nice glow. The logs are light, unbreakable, and last a lifetime. Ross shows Bob the 6000 TRXI, a premium model that is rated as a furnace. It has a beautiful masonry appearance inside and a pumps out enough BTUs to heat a 1200 - 1500 sq. ft. house. The fireplace also offers the option of turning the flames down or off or opening the climate control damper to cut the heat by one half.

Bob meets with Brian Kaley and Tim McFadden from Pella Windows to discuss the new fenestration that will be employed in the waterfront warehouse rehab project. Pella will be supplying windows that are architecturally similar to what was used in the original structure, a six-over-six-pane double-hung design. McFadden points out that the new windows are complete tear out and replacement models. The new windows have a 3-1/2-inch bottom rail that mimics the architectural style of the period. Pella's Kaley, on site to supervise the window installation, points out that the windows need a clean slate for installation. This requires the removal of the old window framing all the way down to the masonry. To secure the new window, the crew from Dino's Construction builds a wooden frame with 2-by-6 framing stock. With the window dry fit into place, Bob discusses the proper methods of insulating the gaps between the frame and the masonry.

Bob talks with Brian Heinz of Pella windows about the large, custom double-hung windows that are being installed in the Manhattan Brownstone. In keeping with the original 1890s-style window, they have selected a one-over-one double-hung window. This window is almost as large as can be ordered to allow the maximum of natural light and air into the apartment. These Pella historic replacement windows blend old-world style with energy-efficient low-emissivity technology. Low-e glass keeps heat in during the cold months and locks heat out during the warm months. The all-wood window frames are clad in aluminum on the exterior to keep them maintenance free. The interior features a historically correct ogee profile around the entire sash and a thicker bottom rail as was the style at the end of the nineteenth century. David Kneeshaw of Keywood Installers joins Bob for the installation of the windows. He shows how the masonry opening is framed in plywood that is glued to the original brick then screwed into place. Two-by-six members are then affixed to the plywood to build the frame out to the proper dimensions. Finally, aluminum receptors are cut to length and ripped before being glued and screwed into place as receptors for the new window. The caulking makes for a secure installation that fights off water penetration. These custom windows cost approximately $1,000 apiece and feature the new Vivid View high-tech screens from Pella.

Bob meets with Ed and Lisa Zywusko, a husband and wife masonry team and sees how they are going to refurbish the old brick chimney. Ed demonstrates the techniques used to lay the cement and place the bricks in place.

Bob Vila visits a loft conversion in downtown Boston. He meets with Ryley and Bob George from New England Window, and helps install a bronze aluminum replacement window in an arched-top masonry wall.

The structure for the fireplace is now being trimmed out with real stone. Bob talks with John Nadler of Plymouth Quarries about the stone being used. In this case, real stone is cut thin so it can be applied like a manufactured veneer. The stone is a New England fieldstone from Connecticut. The stone can be cut with a hammer, a four-inch grinder, or a wet saw. Because the stone is so thin, it can be cut quite easily. It costs approximately $12-15 a square foot. In contrast to traditional stone which weighs about 50 pound to the square foot, this is a lightweight stone product weighing less than 15 pounds to the square foot. The installation can go from the top down as it does not require any structural footings underneath. Bob talks with Joseph McDonough of McDonough Masonry. McDonough built the original chimney when the house was built over 25 years ago. A grout bag is used to squeeze the mortar into the joints between the stones. After two to three hours, once the mortar is set, McDonough uses a pointed stick to scratch out the joints. He then brushes the joints to clear any fine leftover particles.