Jeff shows Kevin how he's framing the net zero house. Richard demonstrates heat loss and gain to design a balanced HVAC system. He and Don visit the International Builders Show. Now that the house is open, Kevin can see the old wiring and plumbing.

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Si vous aimez cette émission, vous aimerez sûrement celles-ci :

• Ah Menak
• CBS Mornings
• PBS Newshour