 The
tubing can be placed on top of wooden greenhouse benches,
below expanded metal benches, on the ground for bedding
plants, or buried in media beds for propagating woody
ornamentals. Conceive an application and BioTherm tubing
is up to the task.
This high performance tubing is formulated to last, UV and chemical resistant,
will handle foot and small cart traffic, warranted for 10 years— formulated
to last for 50 years! Used in our engineered BioTherm Systems and the packaged
Benchwarmer Kits. Ships on convenient, easy to handle 1,000’ reels.
The fittings are inserted into the manifold, connecting
the manifold to the tubing, clamps are used to secure
the tubing to the fitting. Different fittings are available
from our range of greenhouse supplies to accommodate manifold
configurations best suited for an individual engineered
system.
BioTherm “L” Fitting:
For manifolds installed at the end on a bench/bed. Recommended for benches
under 50’ in length.
BioTherm ”T” Fitting:
For manifolds installed in center of a bench/bed. Sometimes called center-fed
or butterfly headers. Recommended for benches over 50’.
BioTherm Clamp:
Secures BioTherm tubing to “L” or “T” fittings. Nylon “66” compound
lasts for many years in the greenhouse heat environment. Holds tight with “Double
Serrated” jaw teeth.
 BioTherm Splice Union:
Used for tubing connection, in a new installation or to repair a tube in an
existing system.
Wedge-Lok Headers:
Always used in a pair, Microclimate headers are the junction between the BioTherm
tubing and the supply and return piping.
The supply and return headers are capped at opposite ends to equalize pressure
with counterflow. This guarantees that every square foot of heated area receives
the same exact amount of heat from one end to the other. Our continuous product
improvement policy has resulted in in the introduction of the Wedge-Lok type
header fitting which drastically reduces installation time.
 Headers
are designed to direct the flow of hot water from the
supply piping through the BioTherm tubing out over the
greenhouse bench/bed providing gentle, even heat, returning
the water to the return piping and heat source to be
re-heated and re-circulated.
The diameter of header pipe is determined through
the engineering process, taking into consideration
flow
rate and heating application. Microclimate manifolds
are custom manufactured to the width of your bench/bed.
Schedule 80 PVC manifold piping is used for standard
greenhouse heating installations. Retrofits for most
hot water
systems are available.
Call our help line, we specialize in solutions.
 BioTherm Grabber Trak:
Grabber-Trak acts as the guide for the BioTherm tubing, anchoring it in the
best position possible. Grabber-Trak is made of a leading edge thermoplastic
with a life expectancy of 50 years. It’s “L” shape
provides ample space for staples, nails, or screws to attach it.
The “foot” is serrated, so adhesives can
be used to attach it to greenhouse metal frame benches.
Able to withstand temperatures up to 240° and highly chemical resistant,
Grabber-Trak is the answer to almost any tubing placement problem. With capabilities
of spacing tubing in 1/2” increments, it is adaptable to any installation.
And because Grabber-Trak comes on 200’ rolls, it can be cut to any desired
length— it’s so easy to install!
The installation of a BioTherm System on a stationary or on rolling benches
will differ. Many growers have a preference on how that is accomplished; we
have all
of the fittings and components for any preference or call our help line for tips
on how to do this the TrueLeaf way.
Standard PVC fittings:
Available in Schedule 80 PVC and CPVC. Varying sizes from 1/2”.
 Standard
PVC piping:
Available in Schedule 80 PVC and CPVC. Varying sizes from 1/2”.
We realize these parts are most likely available
in your area, however, for your convenience we offer
one-stop
shopping. Let us ship these integral components with
your greenhouse system and save you time.
Components for rolling bench connection:
.75” Thermoid hose, ensures a flexible connection. Sold by the foot.
PVC hose barb connector:
Especially suited for installation using the thermoid hose, will not twist
or break off.
 Worm
gear clamp:
Used to secure hose to barb fitting.
We have all the pipe glue, primer and sealants you’ll need for your installation.
Glue and Primeravailable in pint, quart or gallon size. Teflon tape available
in 1/2” and 3/4” wide available.
Request a free copy of our Solvent Welding instructions—
everything you wanted to know about gluing PVC pipe.
 Growers often request bench isolation or shut off
valves in a BioTherm system. The advantage to this option is the ability to
isolate or shut off individual
benches within a system. If a bench is not in use or is under repair it can
be shut off, saving energy. The shut-off valves and air vent option below can
save the day when repair one leaky fitting, makes short work of getting the
system back on line.
Manual PVC shut-off valves:
Various sizes available.
Wedge-Lok Header Air Vent:
Manifold air vents are installed during manufacturing,
these are used to release air during the initial installation
or anytime air finds its way into the system.
Unfortunately accidents happen! Order a repair kit with your greenhouse system.
Don’t
wait until the leak happens, be ready.
BioTherm Repair Kit:
Repair the tubing by cutting out the damaged piece and adding a splice union,
clamp both sides and you are back in business.
1 Package includes: 10
clamps, 5 splice unions
Header Repair Kits:
We recommend drilling “out” the damaged fitting, tapping threads,
screwing in a plug, drilling a new hole nearby, inserting a new fitting and
clamping the tubing to the fitting and you’re ready to go. Everything
you need to complete the repair is included in the kit.
“L” type Manifold Repair Kit:
1 Package Includes: 10 “L” fittings, 10 clamps, 1 drill bit, 1
Tap,
10 Screw Plugs, Teflon tape
“T” type Manifold Repair Kit:
1 Package Includes: 10 “T” fittings, 20 clamps, 1 drill bit, 1
Tap,
10 Screw Plugs, Teflon tape
Microclimate Goof Plug:
In case you need to build your own manifolds and drill
one too many holes, “Oh no, I goofed”—
we have the solution.
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