Transpiration Solar Collectors for Low-Cost Space Heating

Oil is over $100 a barrel and the sun is still free.metal or black plastic covered with small
Despite the efforts of the politico-industrialventilation holes; this is not high tech it's just
complex to ensure we only buy our over-pricedfabulous tech. The collector heats up in the sun,
energy from approved sources, economiccold air circulates through and soaks up that heat,
pressure from individual homeowners will force adelivering clean energy to your living room. By the
move to "free" sources of energy.way, you're drawing in fresh outside air. These
The issue to date with most solar heatingmodern, air-tight homes are killing all of us. Has no
implementations is that the capital cost to redirectone noticed that the incidence of toxic mold has
all those free photons into your home requiredgone up 3000 percent since "air-tight" homes
payback periods of 10, 15, or 30 years. Only thestarted being built? They should be called
most pioneering of families are willing to bet on adisease-in-a-box homes; but I digress.
30-year payback with technology that isTranspiration collectors are extremely cheap
improving every five days.because they are designed to run at low
Transpiration solar air heaters can lower thetemperatures and require no glass covers and no
payback period to the point where people willinsulation. They circulate air, not water, so they
drive their pickups to the home supply store inhave no freezing problems and little maintenance.
the morning and start saving money by theYou can use your existing furnace ductwork and
afternoon-on a clear day you can see the futurejust pipe warm air into the house or use it to
and the economics are pretty clear.pump heat into the basement; which lowers the
Fuel oil delivers about 139,000 BTU's per gallon atcost of keeping the entire house warm and
$2.95 a gallon; with prices rising fast. One BTU isoperates as a giant solar storage repository at
enough heat to raise the temperature of a poundnearly zero incremental cost.
of water by 1 degree in one hour. An average100 square feet of transpiration solar collectors
sized house in the Midwest needs around 80 millionwould deliver 180,000 BTU's per day or
BTU's to keep the occupants comfortable through32,400,000 BTU's over the six-month heating
the winter. Those 80 million BTU's come fromseason. That would eliminate 233 gallons of fuel oil
burning 575 gallons of fuel oil at a cost of $1,697.and throw $687 dollars back into your mad
That's your money going up in smoke. Themoney jar to do something mad with-Vegas
heating season is about six months so let'sanybody? These systems are cheap and simple
assume you'll need 18,000 BTU's an hour as anso they should last 20 years. Now you've got
average (the peak load would be much higher of$13,740 in your mad money jar-can you say, High
course).Roller, baby?
The sun provides around 450 BTU per hour perThat savings assumes fuel oil is going to stay
shiny square foot. Assuming 50% efficiency in the$2.95 a gallon for the next 20 years. Let's be
solar collector you would capture 225 BTU/ft2/hrrealistic, fuel oil is going to be more expensive
or 1,800 BTU/ft2/day. The most economicalthan a college education in 20 years. Our kids are
application for solar energy is baselineall going to work for Saudi Princes, shoveling their
heating-provide a slow and steady improvementgold coins around, and we're going to be thankful
by raising cool air to lukewarm air, burn the oilwhen we can turn the thermostat up to 45
only to fight off the arctic blasts.degrees and thaw out the toilets.
So, let's save some money.Start checking it out. If you can't find 100 square
Transpiration solar collectors provide lowfeet of transpiration solar collectors for less than
temperature air (80-110 degrees F) by pulling in$687 dollars I'll send you free plans and loan you
fresh outside air and heating it on the way intomy staple gun (just kidding about the staple gun
your home. These collectors are simple sheets ofgo buy one with your Vegas winnings).