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On the good way, really good 😍! Credit @bertblanche #urbangarden #gardening β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€” Follow us on Facebook tooπŸ‘->Β facebook.com/urbangardenersrepublic β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€” To be featured on this accountπŸ˜„, tag your best urban gardening pics with "#urbangardenersrepublic" πŸ’š β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€”β€” #communitygardenΒ #urbanfarming #urbanfarm #urbangardening #allotment #homegarden #garden #jardin #garten #怍物 #jardim #taman #gardener #gardens #mygarden #greenthumb #homegrown #gogreen #nature_perfection #naturelovers #flower #seeds #nature #green #tree #bestoftheday #photooftheday
Do you have a DIY made from an old article of clothing? Something like this pillow made from old ties can win you a TerraCycle prize pack AND get your DIY instagrammed on the Official TerraCycle Account! Contest will be starting soon...get ready!! #selfieDIY
This #Mario mosaic looks pretty cool! It’s made completely from bottle caps by #PaulVanScott Start collecting bottle caps to make one! #upcycle #TerraCycle
Good luck to #FloWater ambassador Valerie Voboril at the #CrossFit Games this weekend!!! Valerie placed first in the SoCal Regional qualifier. We are rooting for you! And we are thrilled to be hydrating Valerie and ALL the athletes at the CrossFit Games with 24 premium, 7x purified, electrolyte enhanced, oxygenated, and alkaline FloWater Refill Stations!!! #premiumhydration #health #fitness #zeropollution #downwithplastic
Mini watermelons!/Cucamelons _______________________________ Thanks for sharing this photo @heathermichelle10 _______________________________ Grow something and share with us what you are growing using #growsomethinggreen
β€œLearn from yesterday, live for today, hope for tomorrow.” – Albert Einstein. Picture from @BricePortolano_ #TenderJaws #ecoquote #TerraCycle
Have a safe ride home everyone! Check out this #motorized #trike by #ChrisGilmour made out of corrugated #cardboard boxes! #TerraCycle #upcycle

Passiv Haus (Passive House)

A “new” construction style coming out of Germany creates houses that barely need energy to run. They don’t even have heating systems. In the dead of winter they might need a little space heater but that is is. What is the secret?

Insane amounts of insulation, triple pane windows, fanatic air sealing, smart solar design, good air circulation and efficient appliances.

Here is a list from their site:

Compact form and good insulation:
All components of the exterior shell of the house are insulated to achieve a U-factor that does not exceed 0.15 W/(mΒ²K) (0.026 Btu/h/ftΒ²/Β°F).

Southern orientation and shade considerations:
Passive use of solar energy is a significant factor in passive house design.

Energy-efficient window glazing and frames:
Windows (glazing and frames, combined) should have U-factors not exceeding 0.80 W/(mΒ²K) (0.14 Btu/h/ftΒ²/Β°F), with solar heat-gain coefficients around 50%.

Building envelope air-tightness:
Air leakage through unsealed joints must be less than 0.6 times the house volume per hour.

Passive preheating of fresh air:
Fresh air may be brought into the house through underground ducts that exchange heat with the soil. This preheats fresh air to a temperature above 5Β°C (41Β°F), even on cold winter days.

Highly efficient heat recovery from exhaust air using an air-to-air heat exchanger:
Most of the perceptible heat in the exhaust air is transferred to the incoming fresh air (heat recovery rate over 80%).

Hot water supply using regenerative energy sources:
Solar collectors or heat pumps provide energy for hot water.

Energy-saving household appliances:
Low energy refrigerators, stoves, freezers, lamps, washers, dryers, etc. are indispensable in a passive house.

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