Looking for Energy Efficient windows?
Get the low-e performance leader from ENERsign!
ENERsign – The premium brand for energy-efficient windows and doors
ENERsign is the worldwide premium brand for windows and doors in the energy efficiency sector. For more than 25 years, our products have been appreciated and awarded all over the world for their patented engineering and design art “Made in Germany”. We combine a holistic consulting approach with excellent customer service.
ENERsign stands for wood-aluminium windows and doors with the highest standards of energy efficiency. The best insulation, low emissivity and air-tightness values can be achieved through the interaction of design and material selection.
Our windows and doors are certified by the Passive House Institute and will help you design Design Homes, Mountain and Ski Homes, passive houses or net-zero houses for thermal comfort, energy efficiency, and moisture control in Cold Climates.
The ENERsign primus window achieves R-values of 13 depending on the glazing and wood type.
Large window fronts with a particularly modern design play a significant role in the architecture. As window manufacturer ENERsign has specialized in developing energy-efficient and high-quality windows with the best values for energy-efficient construction.
Solving for climate change in the building sector requires higher levels of energy efficiency of all envelope components especially in cold climates to reduce heating demand.
A high efficiency house requires only a fraction of the primary energy compared to a standard state-of-the-art building.
There are a number of ways to build the future house energy-efficient. However, the key factors are the building envelope, the ventilation system and highly thermally insulated windows.
ENERsign Primus
R10
U 0.10
ENERsign Primus Profile Sectional Cut – R10
ENERsign Arctis
R13
U 0.08
ENERsign Arctis Profile Sectional Cut – R13
Fixed windows as single glass up to 180″ wide and 110″ high
Double Lift and Slide Doors up to 432″ wide and 110″ high
Double French patio Doors up to 100″ wide and 110″ high
Picture of a Passive House designed by Fuentes Design in Boulder, Colorado
Operating comfort and technology at the highest an unmatched level
The certified wood-aluminium ENERsign®primus large windows and lift and slide doors with barrier-free threshold combine first-class level of workmanship with a strucutral balanced construction. It also offers high air tightness, excellent thermal insulation values and reliable burglary protection.
The ENERsign®primus large windows and lift-and-slide doors is an eye-catcher for every home thanks to its sophisticated technology, the large glass surfaces possible and the narrow frame widths all round.
Due to the exact guidance at the top and bottom, even large sliding sashes can be opened and closed with ease. The ENERsign large windows and lift and slide doors set dimension standards with heights of 110 ” and overall widths of 432″.
Due to the slim aluminum cover profile, insulation on “zero frame view” is possible without thermal bridges.
Generally, on regular lift and slide doors, the most problematic areas are the transition between sliding sash and fixed element, as well as the threshold design. Here the tightness is decisive. Not so for the ENERsign Lift&Slide doors, through sophisticated special and customized solutions, especially for large elements, these problems do not exist with the ENERsign design.
R-VALUES – GENERIC OVERVIEW
COMPARISONS OF CODE MIN. VS. ENERGY STAR “MOST EFFICIENT” VS. ENERsign Windows
Residential Site Energy Comsumption by End Use Graph – Source DOE
How to reduce Annual Space Heating Demand?
1.. Loose less energy by a better insulated building envelope:
- Built Outside walls with higher R-Values / lower U-Values
- Install Windows with higher R-Values / lower U-Values
- Install Heat-Recovering Ventilation Units
2.. Harvest Free Energy
- Install a maximum of windows on the southern and western facades
- Use high solar gain window glass to harvest a maximum of free solar energy
- Harvest free ground energy with the ventilation unit
Graph HDD vs. Solar irradiance
Harvesting Free Solar Energy with ENERsign window and why they make sense in cold climates :
SOUTH – ANNUAL GAINS CAN BE AS MUCH AS 4:1 GAIN TO LOSS ratio, on the South façade, 2:1 net gain on east and west façades.
EXAMPLE:
2500 sf house, 7000 ft. elevation, Colorado Mountain foothills west of Boulder, Colorado.
30,121 kBTU/yr generated, 11,448 kBTU lost = 18,673 kBTU/yr net gain = 5473kWh/yr gained
—> the power produced by a 3.65kW solar photovoltaic system, around $600/yr useful energy @ $0.11 per kWh.
Windows still will increase PEAK HEAT LOAD, but will reduce ANNUAL HEAT DEMAND
What about an Energy Star Most Efficient class window for Northern climate zones for the same house?
U – 0.20 SHGC – .11
Lets compare annual numbers –
7,123 kBTU gained, 30,055 kBTU lost = 22,932 kBTU NET LOSS, or 6721 kWh/yr, or approximately a 4.5kW Photovoltaic system.
Explore the potential at your location:
–> Heating Degree Days Map
–> Solar Irradiance in February (Key Heating Month)
ENERGY STAR “MOST EFFICIENT: ENERsign Window
7,123 kBTU gained 30,121 kBTU/yr gained
30,055 kBTU lost 11,448 kBTU lost
= 22,932 kBTU NET LOSS, or 6721 kWh/yr lost 18,673 kBTU/yr net gain = 5473kWh/yr gained
Case Project: ENERGY STAR “Most Efficient vs. ENERsign Windows Comparison Table
–> No need to invest in 8.25 kW of PV, thus Cost Savings or 8.25 kW of PV Energy available for other usage.
WINS with ENERsign Windows
- Energy-Efficient Building: Cost Savings by Reducing the number of Solar Panels Needed.
- Net-Zero Building: Cost Savings by Reducing the number of Solar Panels needed to reach Net-Zero. Get a Plus-Energy Building at no additional Costs.
- Off-the-Grid Buildings: With the same number of Solar Panels, more Energy available for other Systems than Heating. No Need for additional Energy Generation Systems.
