Claims
- 1. An apparatus for heating water, comprising in combination:
- a housing forming a combustion chamber, a baffle means located in the combustion chamber for dividing the chamber into an upper first chamber portion and a lower second chamber portion, said first and lower second chamber portions being in fluid communication with one another, said upper first chamber portion receiving hot exhaust gases from a burner; said housing also including therebelow means in the form of a condensation chamber that receives condensate from said second chamber portion and that has decontamination occurring therein as well as having a drainage means for said condensate that discharges and drains from said condensation chamber;
- first heat exchanger means associated with said first chamber portion; said first heat exchanger means having only one inlet means and only one outlet means for water that is to be heated by said hot exhaust gases during operation with only a single circulation; and
- second heat exchanger means disposed above said condensation chamber in said lower second chamber and adapted to heat air for combustion received at an inlet thereto as well as to pass exhaust gases therethrough that flow as combustion chamber gas through both said first heat exchanger means and said second heat exchanger means from said first chamber portion; fresh air being heated in said second heat exchanger means via the exhaust gases to a predetermined temperature range to be supplied to said burner; said combustion gases are cooled off to reach said second heat exchanger means in a range of 60.degree.-75.degree. C.; said second heat exchanger means having outlet means in communication with said burner for supplying heated air thereto, said second heat exchanger being made of a thin sheet of a synthetic plastic material having a wall thickness of less than 0.5 mm due to the cooled-off temperature range of said combustion gases thereto; condensation occurs in said condensation chamber for the decontamination and removal of contaminants and damaging materials therein which are discharged and drained with said condensate from said condensation chamber.
- 2. An apparatus in combination according to claim 1, in which air for said burner is exclusively heated air from said second heat exchanger means.
- 3. An apparatus in combination according to claim 1, in which said apparatus is disposed in a room having an outer wall; and in which said inlet of said second heat exchanger means communicates with a feed line that passes through said outer wall.
- 4. An apparatus in combination according to claim 1, in which said fresh air is heated in said second heat exchanger means to a temperature in the range of about 40.degree.-50.degree. C.
- 5. An apparatus in combination according to claim 1, in which said plastic material has a thickness of 0.25-0.45 mm.
- 6. An apparatus in combination according to claim 1, in which two opposite sides of said second heat exchanger means are each provided with a plurality of longitudinal channels for receiving said fresh air from said inlet and conveying it to said outlet means; the longitudinal channels on a given side of said second heat exchanger means are disposed one above the other, with a given longitudinal channel on one side communicating with a given longitudinal channel on the opposite side via a plurality of transverse channels; superimposed longitudinal channels alternately communicate with one another first on one side and then on the opposite side via openings; transverse channels that connect two longitudinal channels on opposite sides are disposed above other transverse channels that connect other longitudinal channels, with said exhaust gases from said first chamber portion being passed back and forth, in the direction of said longitudinal channels, between said superimposed transverse channels.
- 7. An apparatus in combination according to claim 6, in which superimposed ones of said transverse channels are not connected to one another.
- 8. An apparatus in combination according to claim 6, in which adjacent ones of said transverse channels, i.e. ones connecting the same two longitudinal channels, are not connected to one another.
- 9. An apparatus in combination according to claim 6, in which said longitudinal channels and said transverse channels are each respectively composed of two similar sections having interconnected rims.
- 10. An apparatus in combination according to claim 6, in which communication between longitudinal channels via said openings is effected via a plurality of tubular connecting pieces that are distributed over the length of a given longitudinal channel, and via a plurality of corresponding tubular pieces distributed over the length of an adjacent longitudinal channel, with a given connecting piece extending into a given tubular piece.
- 11. An apparatus in combination according to claim 6, in which superimposed longitudinal channels positively engage one another.
- 12. An apparatus in combination according to claim 11, in which a given longitudinal channel is provided with projections distributed over the length thereof, with an adjacent longitudinal channel being provided with recesses for receiving said projections and effecting said positive engagement.
- 13. An apparatus in combination according to claim 11, in which facing walls of adjacent longitudinal channels are provided with longitudinally extending profiles that extend into one another to effect said positive engagement.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3536667 |
Oct 1985 |
DEX |
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Parent Case Info
This application is a continuation of application Ser. No. 845,935 filed Mar. 28, 1986, now abandoned.
US Referenced Citations (8)
Foreign Referenced Citations (1)
Number |
Date |
Country |
2499702 |
Aug 1982 |
FRX |
Continuations (1)
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Number |
Date |
Country |
Parent |
845935 |
Mar 1986 |
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