A Passive Solar House - Cool Climate Passive Solar Heating and Cooling Tips

In any climate, if you're thinking of going green, passiveenough for safety and escape routes. Large openings
solar energy design is the best place to start.such as garden doors should be covered with
Affordable passive solar homes are easy to constructinsulated draperies or shutters during the winter.
using the same basic materials as conventionalEvergreen trees or an earth berm on this side help to
housing. All it takes is a little thought and some cleverblock frigid winter winds.
manipulation of the sun and wind and you can save- 6. Plantings ~ Deciduous plantings (leaves fall off in
thousands of dollars on energy bills throughout thethe winter) in the form of trees, trellises, arbors,
lifetime of your home.pergolas and pots, provide ample shade in the summer
Although many of our passive solar home design tipswhen placed near windows and doorways but allow
can be easily and inexpensively applied to an existingwinter sun lots of access to warm the home after
home the most effective passive solar powertheir leaves have fallen off. Way more than shading
dwellings are carefully planned from the outset to takethe area, trees and other greenery actually cool the air.
best advantage of the sun's natural rhythm.In much the same way as an air conditioner, greenery
A long and shallow house that faces as close to truedrinks in gallons, even dozens of gallons, of humidity
south as possible is a good start. East and west wallsfrom the surrounding air, making tree shade superior to
will have little exposure to the sun while the northawning shade.
should have the fewest windows.- 7. Patios ~ Outdoor living spaces add ambience and,
In cooler climates most of your energy bill representsof course, living area for your summer activities. Plan
heating and cooling costs. Passive solar energyan outdoor cooking area on your shady patio to keep
principles revolve around regulating your home's interiorthe heat out of the house on sultry summer evenings.
temperature by inviting as much sun as possible in- 8. Entryways ~ A separate entryway or mud room
during the winter months while discouraging it inallows you to exit and enter the house, greet guests
summer.and cart in groceries and other needs without
exposing the house to the elements. Use an energy
Here are some of our favorite tips for collecting freeefficient space heater to regulate the temperature of
passive solar energy.this space.
- 1. Insulation ~ Not the prettiest aspect but it absolutely- 9. Thermal Mass ~ Thermal materials such as stone,
makes the most of a passive solar design. Withoutbrick or concrete floors. window ledges/seats and
adequate insulation in floors, ceilings, walls and aroundislands or half walls, readily absorb the sun's thermal
electrical outlets, doors, windows and dryer vents all ofrays to be slowly released into the evening hours. A
your other passive solar efforts will be unimpressive.depth of at least 4 inches of thermal material works
- 2. East ~ Plan a breakfast patio on the east side ofbest.
your home where you can soak up the sun on- 10. Covered Verandas ~ The best place for a deep,
summer mornings before the heat of the day sets in.covered veranda is on the west side of the house to
Plantings, awnings and insulated window coverings willprovide a cool afternoon space. The veranda will keep
keep the sun out of the house in the summers.the afternoon sun from intruding into your living space
- 3. West ~ The best place for a deep coveredduring the summer. Avoid covered verandas on the
veranda. Watch the sun set from the cool shade ofsouth side as they do not allow sufficient sunlight to
your covered porch. Plan a windbreak of trees to theenter the home for warmth in the winter.
north west to keep the winter winds at bay.In very cold climates, properly applied passive solar
- 4. South ~ (north in the southern hemisphere) This isprinciples can provide all the summer cooling you'll
the side of the house that collects the most passiverequire and most of your winter heating needs as well.
solar power. Orient your house and most of yourThe addition of a wood or pellet burning stove or
windows and doorways facing in this direction.energy efficient space heater can provide sufficient
Awnings or shallow overhangs will keep the sun out inheat throughout even very cold winters.
the summer while allowing it in during the winter.One size does not fit all when making passive solar
- 5. North ~ (south in the southern hemisphere) Thereplans for a home.
is little or no opportunity for solar gain on the shadyProperly researched passive solar design for your
side of your home, but a great deal of heat can bespecific location will result in a home that operates
lost through these openings. Windows to the north, orefficiently and comfortably with minimal use of fossil
the shady side of the house should be minimal, justenergy. That's good news for all of us.