Bonaparte Cabin Great Room Passive House aka Passivhaus is a consistently objectively verifiable, cost-effective, predictable way to make a building more comfortable, more durable and healthier, with the side benefit of a huge reduction in total energy use over conventional construction!
Per fluorocarbon A greenhouse gas emitted primarily by industrial processes.
Permeable Pavement A paving material that allows the penetration of water, thus significantly reducing runoff from storm water. Photovoltaic PV This system captures light from the sun and converts it into electricity through solar panels usually installed on roofs.
Programmable Thermostat A thermostat that allows homeowners to set the temperature at different levels at different times of day.
For example, in winter, it could be set to be colder while occupants sleep and warmer as occupants awaken. Pressure Meter A device for gauging the difference in air pressure between two spaces such as a garage and a crawl space. R Radon A naturally occurring gas, colorless and odorless, that has been shown to cause adverse health effects.
Radon gas often enters a structure by seeping through cellar walls and floors. Radiant barriers can also help prevent winter heat loss from the home. Radiant Floors - Air An ineffective choice for residential applications.
Although they can be combined with solar air heating systems, the system suffers from the obvious drawback of only being available in the daytime, when heating loads are generally lower.
Because of the inefficiency of trying to heat a home with a conventional furnace by pumping air through the floors, the benefits of using solar heat during the day are outweighed by the disadvantages of using the conventional system at night.
Radiant Floors - Electrical A system that consists of electric cables built into the floor. Systems that feature mats of electrically conductive plastic are also available and are mounted onto the subfloor below a floor covering, such as tile.
Because of the relatively high cost of electricity, electric radiant floors are usually only cost-effective if they include a significant thermal mass, such as a thick concrete floor, and if the electric utility company offers time-of-use rates.
Time-of-use rates allow homeowners to "charge" the concrete floor with heat during off-peak hours approximately 9 p. This saves a considerable number of energy dollars compared to heating at peak electric rates during the day.
“Passive House” is today’s most energy efficient building standard using 80% less energy for heating and cooling than conventional buildings yet are markedly more . Featuring articles and discussion about sustainable construction materials, techniques and products for net zero energy and passive house design. Also, highlighting new sustainable communities and buildings. Passive house (German: Passivhaus) is a rigorous, voluntary standard for energy efficiency in a building, which reduces the building's ecological footprint. It results in ultra-low energy buildings that require little energy for space heating or cooling. A similar standard, MINERGIE-P, is used in Switzerland. The standard is not confined to residential properties; several office buildings.
Radiant Floors - Hydronic A popular and cost-effective choice that pumps heated water from a boiler through tubing underneath the floor. In some systems, the temperature in each room is controlled by regulating the flow of hot water through each tubing loop.
This is done by a system of zoning valves or pumps and thermostats. Radiant Heated Floors A way to heat spaces using radiant energy that is emitted from a heat source.
There are three types of radiant floor heat: Rain Garden A shallow, constructed depression that is planted with deep-rooted native plants and grasses. It is located in the landscaping to receive runoff from hard surfaces, such as a roof, a sidewalk and a driveway.
Rain gardens slow the rush of water from these hard surfaces and hold the water for a short period of time, allowing the water to naturally filter into the ground. Rain gardens help control storm water runoff. Rain Water Catchment Systems that harvest water during periods of rain.
The water the can be saved and used during droughts. Rammed Earth Construction A building technique involving dense compression of clay and dirt materials to create thick, flat surfaces, such as walls or floors.
Recirculating Hot Water Heater Systems that use a thermostat or timer to automatically turn on the pump whenever water temperature drops below a set-point, or when the timer reaches a setting. Hot water recirculation systems can be activated by the push of a button or by a thermostat, timer or motion sensor.
Such systems ensure that hot water is always available without any waiting time.
Hot water recirculation systems generally consist of a pump, an integrated electronic controller, and a zone valve.GreenHomeNYC's mission is to promote an energy efficient and sustainable built environment and to support green professional development in NYC.
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