Trickle Down Solar Heating
In the 1950’s, Harry E. Thompson, a
Thompson’s “Trickle Down”
dream became a reality but it was never fully realized until now with the invention of the “Modified Trickle Down” solar heating
system. TD and MTD are alike in that they are both open loop
systems that pump water to the tops of collectors but there are significant
differences between them.
Trickle Down Modified Trickle Down
Trickles water on absorber
Trickle water through
Glazed in glass
Glazed in polycarbonate
Corrugated steel absorber
Polyester felt absorber
Has no inner film
Has inner film
My first MTD collector looked something like this, but the screen has been replaced with polyester felt along with numerous other modifications to make MTD more cost effective and more reliable than oil heating systems. I have experimented with dozens of collector designs over the last three years and I am now only promoting my best design. If you have basic handy man skills the MTD kit will greatly simplify the construction of your first MTD collector. The true magic of the MTD has a lot to do with the way they are mounted to form arrays. Here is a simple small system.
Three 2x12 MTD collectors pressed together.
MTD collectors have been
designed for flush mounting on a house roof, but don't give up if your roof is
oriented in the wrong direction. Build an MTD sun
shed and use a multi multi
drum heat storage system right inside the shed.
The top and bottom 2”x2” mounting supports provide an ideal
platform for flush mounting MTD collectors. An eight collector system would
require four 2’x2’x9’ supports screwed into the roofs rafters. Use a level to
position the top supports so that the mid section. This will help to channel the
gutter water into a central drain connected with a 2” rubber T boot. Water
will never cause a freeze problem inside a properly installed MTD solar heating
and DHW system.
Water will never cause a freeze problem inside a properly installed MTD solar heating and DHW system.
Richard Heiliger and I both believe
that energy from sunlight can and should be a practical investment and we both
encourage the reader to gain hands on experience through experimentation and
discovery. There is only so much to be learned from reading. Dreams are given
wings not only by our thoughts and understanding but also by the actions we take
to turn them into reality. The MTD construction starter kit along with the MTD
construction guide and video CD will help clarify the construction experience of
this innovative solar thermal application.. Energy independence is
possible but it will only become a reality if we make it so.
Richard Heiliger's MTD solar heated home in Northern Utah
BobGering's MTD solar heated year round greenhouse in Canada
John Canivan's MTD sun shed used for manufacturing Differential Controllers
STARTER KIT...The starter kit is designed to give the reader some hands on experience with a Low cost MTD collector. The kit contains a construction guide book, TDM materials (2'x8' polyester felt, two 30"x8' sheets of polypropylene, five Berger Bros Bibs), a Trickle Down Distributor, a gutter end cap, a gutter compression support and a 3/4" L connector. The kits comes with an instruction booklet for a wood frame MTD collectors and a CD with an MTD steel stud slot instruction video and a Solar Plumbing multi media shown. This CD runs on standard PC computers. You really need a kit to get started.
MTD Solar Collector Kits
MTD Solar Heating
MTD Solar Home
Green Collar Work
Solar Heat in December
Solar Heating in January
Multi Tank Heat Storage