Exhibit 99.
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                                                    /FOR IMMEDIATE RELEASE/
                                                    Contact:  Robert A. Lerman
NEWS   RELEASE                                      860-683-2005     Windsor, CT
                                                    OTCBB:  TDYT
                                                    August 11, 2005

     Thermodynetics' Sales Increased 44% in First Fiscal Quarter ending
          June 2005 vs. 2004; Storm Severely Impacts Michigan Facility

THERMODYNETICS, INC., Windsor, CT (TDYT:OTCBB) August 11, 2005

         Net  sales  for the three  months  ended  June 30,  2005  increased  by
$2,477,000,  or 44%  over  the  prior  year.  Sales  of heat  transfer  products
increased 8% over fiscal 2005, while sales of automotive products increased 153%
during the same period.  Consolidated total revenues of $8.1 million represented
a record level of shipments for the Company for any three-month period.
         The  increase in sales in the heat  transfer  segment is due largely to
the strong housing market augmented by marine air conditioning  applications and
commercial/industrial  building HVAC needs.  The Company has recently  developed
the capability to produce special purpose  enhanced  surface tubing in titanium,
an offering that is unique to the markets it is now serving.  Favorable response
to this  product  from  swimming  pool  and spa  heat  pump  manufacturers  also
generated significant sales during the current period.
         Automotive product segment shipments increased  dramatically during the
current  quarter  compared to fiscal 2005 as a program  for  automotive  exhaust
system tubing moved into full  production  during the latter stages of the prior
fiscal year. In early June a major storm in Lower  Michigan  caused a multi week
disruption that severely impacted the ability of the Company's Vulcan Industries
subsidiary to meet manufacturing  commitments.  The revenue shortfall eventually
caused the  subsidiary  and parent  companies  to agree with its lenders to sell
certain production  equipment to a major customer.  The subsidiary  continues to
operate  the  equipment  for the  benefit of the  customer  and is  billing  the
customer for such services.  The loss of this business would severely impact the
ability of the  subsidiary  to continue to service  its other  customers  as the
overhead of the facility may make such operations economically unfeasible.

         Cost of sales to produce  heat  transfer  products in the current  year
increased 2% from 74% of net sales in the first quarter of fiscal 2005. The cost
of metals  (principally  steel,  copper,  stainless  steel and nickel) has risen
sharply to their highest  levels in the past six years.  Although the effects of
these cost increases are shared with customers, the impact is a net reduction of
gross margin.  Personnel were added in customer  service,  engineering and other
support  functions at both  operating  subsidiaries  in fiscal 2006. The Company
plans on further  additions to its marketing and  engineering  staff in the heat
transfer segment.

         As a result of the decline in gross  margin,  coupled with the increase
in operating  expenses,  income from operations as a percentage of net sales for
the heat transfer  segment  decreased  from 11% of sales in fiscal 2005 to 7% in
the  current  period.   The  automotive   segment   suffered  from  a  prolonged
interruption  of  operations  and  incurred  significant  unplanned  expenses in
addition to the loss of business  described  above.  This contributed to a large
loss from this segment's  operations in the first fiscal quarter;  however,  the
heat  transfer  segment's  performance  was more than  adequate to overcome this
shortfall.
         At June 30, 2005  consolidated  working capital remained negative while
improving by $338,000 from March 31, 2005.  The  Company's  access to credit for
operations is expected to be adequate for heat  transfer  products in the coming
year while  funding of capital  expenditure  programs  will be explored with its
bank during the coming months. The automotive segment is currently experiencing



extremely tight credit availability as its funding resources were severely taxed
by the  significant  start-up  expenses  and have been  further  strained by the
recent  interruption  of  business;  substantial  additional  financing  will be
necessary to fund  Vulcan's on- going  operating  requirements.  Management  has
developed a plan to reduce its liabilities through negotiations with its secured
and unsecured  creditors.  The successful  implementation of this plan, together
with the anticipated cash flow from the heat transfer segment,  should allow the
Company to deal with the adverse effects and conditions.


FORWARD LOOKING STATEMENTS

         This report contains certain  forward-looking  statements regarding the
Company,  its business  prospects and results of operations  that are subject to
certain  risks and  uncertainties  posed by many  factors  and events that could
cause the  Company's  actual  business,  prospects  and results of operations to
differ  materially  from those that may be anticipated  by such  forward-looking
statements.  Factors that may affect such  forward-looking  statements  include,
without limitation: the Company's ability to successfully and timely develop and
finance new projects,  the impact of competition on the Company's revenues,  and
changes in unit prices,  supply and demand for the Company's tubing product line
especially in applications  serving the  commercial,  industrial and residential
construction industries.

         When  used,  words  such  as  "believes,"   "anticipates,"   "expects,"
"continue",  "may", "plan", "predict",  "should",  "will", "intends" and similar
expressions are intended to identify forward-looking statements, but are not the
exclusive means of identifying forward-looking statements. Readers are cautioned
not to place undue  reliance on these  forward-looking  statements,  which speak
only as of the date of this report.  The Company  undertakes  no  obligation  to
revise  any   forward-looking   statements   in  order  to  reflect   events  or
circumstances that may subsequently arise. Readers are urged to carefully review
and consider the various  disclosures  made by the Company in this report,  news
releases,  and other reports filed with the Securities  and Exchange  Commission
that  attempt to advise  interested  parties of the risks and  factors  that may
affect the Company's business.

                                            Three Months Ended June 30,
                                                    (in 000's)
                                             2005                2004
                                            ------              ------

Net Sales                                 $  8,102            $  5,635
Operating Income                          $    235            $    388
Income Before Income Taxes.               $     97            $    266
Net Income                                $     57            $    206
Weighted Shares Outstanding-Basic        3,969,108           3,645,236
Weighted Shares Outstanding-Diluted      3,969,108           3,645,236
Earnings Per Share-Basic                    $  .01              $  .06
Earnings Per Share-Diluted                  $  .01              $  .06


Thermodynetics,  Inc. has been engaged in the  manufacture of high  performance,
high quality  metal tubing and tubing  assemblies to the heat transfer and other
industries  since 1972.  The Company is a world leader in enhanced heat transfer
technology.  These products are marketed worldwide for applications in the space
conditioning,  refrigeration,  biomedical,  aerospace,  boiler, marine, food and
beverage, plumbing, water heating and ice making industries.