Welcome to the world of ENERGATE ® - AHK San Francisco

Passive House Windows- and Doors Factory 

factory entrance / Speyer /Germany 

© Ludwig Häußler GmbH 

www.passivehousewindows.com, www.energysavingwindows.com 

– 

Welcome to the world of ENERGATE ®

Person: Mathias Häussler 




Born: 09.09.1976 in Speyer / GER 

Education: 

Dipl.-Ing. für Holztechnik [BA Mosbach / FH 

Rosenheim] in english: Engineer for Timber 

Technologie 1996-2000 

Glasermeister [Karlsruhe] in english: master glazier 

2000-2001 

– 

Projects realised: 

1. Developed a full range passive house window 

system in PVC, Wood, Wood-Alu 1996-2004 

2. First Passivehouse in Belgium 2004 

3. First Passivehouses in Denmark 2005 

4. First Passivehouses in Irland 2006 

5. Member of the Board in the „solar decathlon 20 

winning team Germany“ / Main Team Sponsor

Company: Ludwig Häussler GmbH 




Ludwig Häußler GmbH 

Producer of ENERGATE windows and door system 

Founded: 1919 in Speyer / Germany, Family owned 

business for four generations 

Employees: in Speyer 50 

Projects per year: ca. 1000 one family homes 

Sites: – 

Germany [Speyer] 

Norway [Oslo/Aalesund] 2004 

Denmark [Aarhus] 2005 

Belgium [Brussels] 2006 

Ireland [Dublin] 2007 

Hungary [Budapest] 2007

Let‘s start with An old major question: 

What is the 

differnence 

between: 

the 

APE – 

the well 

known 

animal 




HOMO 

SAPIEN – 

the intelligent, 

wise human 

being

The difference is the fire! 

What is the 

differnence 

between: 


APE – 

the well 

known 

animal 




HOMO 

SAPIENS – 

the inteligent, 

wise human 

being

…And since then we have tried to manage it 

We 

socialize 

near the 

fire 

We 

developed a 

new system 

as well… 

We 

invented 

huge 

fire places 



To create 

situations 

like this… 

…and 

a lot of 

technical 

equipment!

But this is the wrong way! 

This leads to: 

“One reason why we 

have the fires in 

California is global 

warming,” Senate 

Majority Leader 

Harry Reid 



But you know all 

that! You have 

seen the movie 

and you want to 

change the 

situation!

Producing Vs Saving 

We developed 

a lot of 

technology 

to produce 

Energy in a 

efficient way…. 



ENERGATE comes from 

another angle! We want to 

improve the insulated 

structure of building! Our aim 

is energy saving! 

But we nev 

really 

developed 

the therma 

envelope o 

our 

buildings.

Another example from San Francisco 

artment in 

Jones St. 



Steel windows… 

… and a big 

heater and a big 

air conditioner…

We have to start to keep the fire inside and to use Energy in 

Buildings in a more efficient way! 

Here is an example: …how about a fresh brewed cup of 

coffee ? 

You can 

use a 

standard 

Glass and can 

heat 

up the 

coffee 

24/7… 

Source: PHI Darmstadt 



…oryou 

can use a 

thermos and can 

close 

the cap! 

It is the same 

problem in 

building houses 

and the same solution

Example: Temperatures in a standard building 

e of the simplest ways 

heck out the quality 

he thermal envelope 

building is to 

asure the inside 

face temperatures of 

r walls, windows, 

fs, etc. 

bigger the 

perature difference in 

temperatures, the less 

cient the building is. 

-10°C 



Difference is up to 17°C in one room 

+18°C 

+5°C 

+18°C 

+22°C 

Variant temperatures 

are the source for an 

unconfortable indoor 

climate

Example: Temperatures in an ENERGATE Building 

ecloserthe 

peratures are 

tween the 

erior opening 

d the inside air 

perature, the 

her the living 

mfort, and the 

tter the building 

velope and as a 

ult the more 

icient the 

ilding. 

-10°C 



Difference is max. 3° in one room 

+21°C 

+19°C 

+21°C 

+22°C 

Equal temperatures in 

one room are the basis 

for a high comfort living 

(in summer- and in 

winter climates), a low 

carbon footprint and a 

secure financial 

investment

This situations is Tested in several Laboratories: 

Best ever tested Window in Norway! 

Window 

Outside climate: 

inside surface 

-23° Celsius 

temperature: 

19° Celsius 

ENERGATE has at maximum 

3° difference to the inner air 

climate. This is an up to 15 

degree better performance 

than a standard window! 

This garantees a comfortable 

indoor climate! 



Inside climate: 

air temperature 

22° Celsius

A Simple example how ENERGATE works 



Standard 

Before: 

big loss 

ENERGAT 

After: 

Energy 

doesn‘t go 

through the 

gate

First ENERGY Saving! 

„Our aim is first energy saving, and after this, if 

there is still an need, we think about the efficient 

production of energy“ 

This is a good construction and energetic principle of 

the „Solar Decathlon 2007 Winning Team 

Germany“ 

Thisisthereasonforthe 

First Palce in „Engeneering“ and 

First Palce in „Energy Balance“ 


www.passivehousewindows.com, www.energysavingwindows.com

Development in Housebuilding 

Old barn: 

Energy use: 

>1000 W/m²a 

>92 W/ft²a 

Old house: 

Energy use: 

500-350 W/m²a 

47-33 W/ft²a 



Standard New 

build: 

Energy use: 

250-50 W/m²a 

23-5 W/ft²a 

Future 

Passivehouse: 

Energy use: 

15 W/m²a 

1,4 W/ft²a 

ENERGATE 

House: 

Produces mor 

Energy than it 

needs!

ENERGATE: a Full range ENERGY SAVING WINDOWS and 

DOORS System 

ENERGATE ® is a passivehouse certified and patented window and doorsystem and 

a trademark of the Ludwig Häußler GmbH 

ENERGATE ® 1202 + (Wood-Aluminium windows and doors) 

ENERGATE ® 1042 + (Wooden windows and doors) 

ENERGATE ® 763 + (PVC windows and doors) 

ENERGATE © 1202 + ENERGATE © 1042 + ENERGATE © 763 + Passivhaus Institut - Dr. Feist c 



Why are we here? And what are we looking for? 

- We want to find strong partners to bring the latest 

window technology to the Californian home building 

market. 

- We are looking for a long-term partnership. 

- Our partner should know about local requirments, 

such as local certifications, advertising, marketing, 

showrooms, and customer relations. 

- We want to put our partners under license to market 

and sell ENERGATE and after demand has grown, to 

produce ENERGATE. 

- We want to build the future with ENERGATE, 

comfort light and warmth together with our partners. 

- We are looking for references to show the 

possibilities. 



Impressions from our work, Samuel Boldman, US Secretary of 

Energy said: „a class of its own“ 



Impressions - SD07 Team Germany 

TU Darmstadt / Prof. Manfred Hegger 

Winner of the 

U.S. Green Building 

Award 2007 




is sustainable 

and stands 

for a 

reduced 

carbon 

footprint



ENERGATE is a secure financial investment 





ENERGATE is design oriented 








is as much 

comfort as 

possible

Details ENERGATE ENTRANCE DOOR 




is durable

Details ENERGATE FIX FRAME 



Details ENERGATE SLIDING DOOR 



Thank you for the audience! 



ENERGATE ® 

Future living 

with comfort, 

warmth and 

light

If you have any questions you can reach me under: 

+49 171 455 4078 [mobile] 




–

Welcome to the world of ENERGATE ® - AHK San Francisco

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