An entirely new section in the 2015 IECC/IRC regarding fuel-burning appliances basically requires the appliance to be isolated from the building thermal envelope, located either outside or within a separate room if the fuel-burning appliance is supplied by open combustion air ducts. This brief provides an overview of the requirements and further details of approving the actual "room".
Case study describing a 4,763 ft2 certified Passive House that achieved HERS 27 without PV through the construction of R-54 walls that use ICF plus fiberglass cavity insulation, an R-100 vented attic, extensive air sealing and flashing, triple-pane windows, ductless heat pumps, and solar hot water.
Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning custom for buyer homes in the cold climate that used R-44 insulation in the double walls, R-60 blown fiberglass attic insulation, and triple-pane windows to achieve a HERS score of 14 with PV and 44...
Case study describing a DOE Zero Energy Ready Home 2013 Housing Innovation Award winning custom home in Devens MA that scored HERS 34 without PV or HERS -21 with PV.
Case study describing a DOE Zero Energy Ready Home 2013 Housing Innovation Award Winning production home in Devens MA that scored HERS 35 without PV or HERS -37 with PV.
Case study describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning affordable home in the cold climate that used above-grade walls filled with 5.5 inches of open-cell spray foam and sheathed with an R-6.5 insulated coated OSB sheathing, providing a continuous air barrier and...
Case study describing a DOE Zero Energy Ready Home 2013 Housing Innovation Award winning custom home in Downers Grove IL that scored HERS 35 without PV.
Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning affordable home in the hot-humid climate that used 2x6, 24-inch on-center walls with 5.5-inch open-cell spray foam insulation and OSB sheathing, triple-pane windows, and 20-inch, R-60 blown-in cellulose...
Case study describing a new construction building project of 20 luxury homes in northern New Jersey that were more energy efficient than ENERGY STAR and met the 50% energy savings requirements of the federal tax credit for new homes.
Case study describing how a properly designed duct system is essential for keeping a home comfortable, managing indoor air quality, and maximizing the performance of heating and cooling equipment.
Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning attached home in the cold climate that used 2x6, 24-inch on-center walls and R-50 blown fiberglass attic insulation to achieve a HERS score of 29 with PV and 50 without PV.
Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning custom homes for buyer in the cold climate that used 2x8, 16-inch on-center walls, R-84.6 roof insulation, and triple-pane windows to achieve a HERS score of -13 with PV, and 36 without PV.
Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning custom homes for buyer in the cold climate that used 2x6 on-center walls, R-50 16-inch vented roof insulation, and a 19 SEER AC system to achieve a HERS score of 46 without PV.
Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning custom spec homes in the cold climate that used 2x6, 16-inch on-center walls, R-72 unvented attic insulation, and 16.1 SEER mini-split heat pumps to achieve a HERS score of 19 with PV and 39 without PV.
Case study poster describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning attached home in the cold climate that used R-61, 16-inch blown cellulose attic insulation, triple-pane windows, and a 17 SEER central heat pump to achieve a HERS score of 32 with PV and 48 without PV.
Case study describing a DOE Zero Energy Ready Home 2020 Housing Innovation Award winning attached housing home in the cold climate that used high insulation levels in the attic, walls, and under the slab, with ENERGY STAR appliances, and solar PV panels to achieve a HERS score of 29 with PV and 50...