Comfortable homes that save the world.
Sustainable Environmental Economic Development
October 27, 2007

The following slides are from a presentation by Don Otto at the annual Sustainable Environmental Economic Development conference. The slide are also available as a PowerPoint (ppt) file.

(above) ENERGY RECOVERY VENTILATION IS WHERE THE DESIGN STARTS. THIS UNIT PROVIDES ALL THE FRESH AIR YOU NEED, SO IT ONLY MAKES SENSE TO MAKE THE ENVELOPE AS AIR TIGHT AS YOU CAN

(above and below) SEALING THE ENVELOPE STARTS WITH THE FLOOR AFTER MANAGING WATER FLOW

(above) STRUCTURAL INSULATED PANELS (SIPs) FOR THE SIDE WALLS REPLACE STICKS AND FIBERGLASS

(above) SPRAYED URETHANE FOAM (SOY-BASED) SEALS THE ROOF TO THE WALLS AND COMPLETES THE AIRTIGHT ENVELOPE

(above) HEAT PUMP (left). BLACK, VERTICAL PIPES CIRCULATE WATER FROM THE LOOP FIELD. LIGHT GRAY TANK ABOVE PLUMBING IS THE IN-FLOOR RADIANT HEAT

(above) BACKFILLING THE GEOTHERMAL HEAT EXCAHANGE LOOP. EFFICIENT ENERGY PRODUCTION COMPLETES THE TECHNICAL DESIGN

"You know you have reached perfection of design
not when you have nothing more to add,
but when you have nothing more to take away."
- Antoine de Saint Exupéry