Flame-effect heating apparatus

• US 20020175215A1
• Filed: 11/02/2001
• Published: 11/28/2002
• Est. Priority Date: 05/01/2001
• Status: Active Grant

• Current Assignee: Smith's Environmental Products Limited (Vent-Rite Valve Corp.)
• Original Assignee: Smith's Environmental Products Limited (Vent-Rite Valve Corp.)
• Inventors: Webster, Gary Stanton, Stanley, Jeremy James
• Granted Patent: US 6,799,727 B2
• Time in Patent Office: Days
• US Class Current: 237/55
• CPC Class Codes: F24C 7/004 simulating flames

Abstract

Flame-effect heating apparatus comprises a housing with walls defining an air duct extending therethrough. Simulated fuel is supported by the housing, externally of the duct, and at least one flame-effect generator is disposed in the duct. A light source is provided in the housing to illuminate both the simulated fuel and the flame-effect generator. A mirror is supported by the housing so that light reflected by the flame-effect generator is incident thereon. A wall of the housing which defines the air duct, is formed as a viewing screen on which light reflected by the mirror falls, the viewing screen being positioned higher than the simulated fuel. An electric fan causes air to flow through the air duct, so causing operation of the flame-effect generator, and a heat exchanger disposed in the duct warms air passing thereover.

Claims

1. Heating apparatus comprising:

a housing having walls which define an air duct extending through said housing;

simulated fuel supported by the housing, external of the duct;

flame simulation means comprising at least one flame-effect generator disposed in the air duct, a light source supported by the housing to illuminate both said simulated fuel and said at least one flame-effect generator, a mirror supported by the housing so that light from said light source and reflected by said at least one flame-effect generator is incident thereon, a wall of said housing defining the air duct being formed as a viewing screen on which light reflected by said mirror falls, the viewing screen being positioned at a higher level than said simulated fuel;

an electrically-driven fan disposed to cause air to flow through the air duct, so causing operation of said at least one flame-effect generator; and

a heat exchanger disposed in said air duct so as to cause air passing thereover to be warmed.

2. Heating apparatus according to claim 1, wherein the housing defines an air inlet located at a lower front part of the housing and an air outlet located at an upper front part of the housing, the air duct extending from the air inlet to the air outlet, and a forward-facing wall of the housing and which forms a part of the air duct, also serves as said viewing screen.

3. Heating apparatus according to claim 2, wherein the electrically-driven fan is disposed in the air duct adjacent to the air inlet, the heat exchanger is disposed adjacent to the air outlet, and said at least one flame-effect generator is disposed therebetween.

4. Heating apparatus according to claim 1, wherein a single electrically-driven fan is disposed in the air duct so as to direct air over said at least one flame-effect generator to cause operation thereof and over the heat exchanger.

5. Heating apparatus according to claim 1, wherein the heat exchanger has connectors to permit the liquid communication thereof with a domestic water heating system.

6. Heating apparatus according to claim 5, further comprising control means arranged automatically to switch on both the electrically-driven fan and the light source upon activation of the domestic water heating system.

7. Heating apparatus according to claim 6, wherein the control means comprises a thermostat arranged automatically to switch on the electrically-driven fan and the light source, upon water in the domestic water heating system being heated to a pre-selected temperature.

8. Heating apparatus according to claim 7, wherein the control means is arranged automatically to switch on the electrically-driven fan and the light source, upon water in the domestic water heating system being heated to substantially 47°

C.

9. Heating apparatus according to claim 6, wherein the control means is arranged to permit operation of the electrically-driven fan and the light source, independently of the temperature of water in the domestic water heating system.

10. Heating apparatus according to claim 6, wherein the control means is adapted to operate the electrically-driven fan at two or more pre-selected speeds.

11. Heating apparatus according to claim 1, wherein said at least one flame-effect generator comprises a flexible reflective fabric having a lower end, and an upwardly-tapering profile so as generally to imitate the shape of a flame.

12. Heating apparatus according to claim 11, wherein the flexible reflective fabric is silk.

13. Heating apparatus according to claim 11, wherein the fabric of said at least one flame-effect generator is tethered only at the lower end thereof to a grille provided in the air duct.

14. Heating apparatus according to claim 13, wherein said at least one flame-effect generator is removably attached to the grille.

15. Heating apparatus according to claim 14, wherein said at least one flame-effect generator and the grille are provided with cooperating magnetic attachment means.

16. Heating apparatus according to claim 14, wherein said at least one flame-effect generator and the grille are provided with cooperating hook and loop fasteners.

17. Heating apparatus according to claim 14, wherein the viewing screen is removably mounted on the housing, such that access can be gained to the air duct and said at least one flame-effect generator.

18. Heating apparatus according to claim 1, wherein the light source comprises a light bulb together with a fitting therefor, mounted on a removable portion of the housing, such that said portion may be removed in order to replace the light bulb.

19. Heating apparatus according to claim 1, wherein the viewing screen has a forward-facing surface which is generally non-reflective.

20. Heating apparatus according to claim 1, wherein the viewing screen has a rearwardly-directed surface which is generally light-diffusing.