What's new in heating replacement designs? In this video, Matt Risinger, master builder, demonstrates Mitsubishi solutions and how to replace an old inefficient system using two outdoor units that are connected to six zones.

There's a designer series on the inside in white and black and also a concealed unit in the master bedroom suite. This is a replacement design, replacing a gas furnace put in incorrectly. The customer decided to zone the 3200 sq. ft. house. The outdoor units are in low ambient mode. There are two six-inch channel stacks that take us all over in the house and there are also things going on in the crawl space. Dividing the house into six zones, as we tour the house, we see the placement in the zones. It's important to place the units where the filters can be replaced easily. Some of the units are white, others black depending on the décor of the room. Matching up the units to work best rather than overload any one unit is important. There is a zone load differential. Units are placed where they need to be to cover as much area as possible. In the master suite, there is a ductless concealed system in the master bath and two two-ways on the ceiling of the master bedroom, plus a return with a filter grill and a wireless thermostat governing the units in the attic without wires. In the attic, there is a concealed ductless unit.