IE44006B1

IE44006B1 - Immprovements in or relating to wrap around back boilers

Info

Publication number: IE44006B1
Application number: IE241377A
Authority: IE
Original assignee: Megahey Henry
Priority date: 1979-03-20
Filing date: 1979-03-20
Publication date: 1981-07-15
Also published as: GB2018417A; IE44006L; GB2018417B

Abstract

A wrap around back boiler for an open fireplace, has a combustion zone defined by a vertically disposed back panel (2) interconnecting side panels (1), and has one or more vertically disposed flues (9) located directly above the combustion zone, the flues being defined by panels (4, 6) which bridge the side panels (1) of the boiler.

Description

The present invention relates to boilers of the kind known as wrap around back boilers which are used to extract heat from a domestic open fireplace, and . comprise a substantially vertically disposed back panel connecting substantially vertically disposed side panels of the boiler. The term panel is used in this Specification, and in the appendant claims, to indicate a water chamber or passage having sidewalls defined by a pair of juxtaposed plates. The heat extracted from a wrap around back boiler may be used to provide hot water for domestic use and/or for central heating.

An object of the present invention is to provide a wrap around back boiler which will be efficient in operation and which will be easy to clean and maintain.

According to the present invention, there is provided a ' boiler of the kind referred to, characterised in that the boiler has two further panels bridging and interconnecting the side panels of the boiler, namely a primary bridging panel forward of the back panel, and a secondary bridging panel located between the back panel and the primary panel so as to define two substantially vertically disposed flues above the combustion zone, one of the flues being located between the back panel and the secondary bridging panel and the other of the flues being located between the secondary bridging panel and the primary bridging panel.

Advantageously, at least one of the flues is located directly above the combustion zone.

The invention v/ill hereinafter be described more particularly with reference to the accompanying drawings, which illustrate, by way of example only, a preferred embodiment of the invention.

Figure 1 is a perspective view of a wrap around back boiler constructed according to the invention, Figure 2 is a front elevation of the boiler, Figure 3 is a sectional elevation on lines A - A of Figure 2, Figure 4 is a plan in section on lines 3 - B of Figure 2, and Figure 5 is a plan view.

Referring to the drawings, the boiler is a wrap around back boiler having side panels 1, connected by a back panel 2 and two further panels, a primary or central bridging panel 4 forward of the back panel 2, and a secondary bridging panel 6 located between the back panel 2 and the primary bridging panel 4, In the side panels 1 are pipe sections 3, by means of which the boiler may be connected to a conventional radiator central heating system.

The boiler has a combustion zone, the rear of which is defined by the vertical wall of the back panel 2. Because of the fact that one extremity of the combustion zone is defined by the vertical wall of the back panel 2, part of the combustion zone is located directly beneath the substantially verticallydisposed flue formed between the back panel 2 and the primary or central panel 4. In the construction shown in the drawings, the secondary panel 6---3 4 0 0 6 defines with the panels 2 and 4, a pair of-----------vertically disposed flues 9 which are located above the combustion zone and which are controllable by a shutter 7, which has a handle 12. The shutter 7 may be operated to open one of the flues 9 independently of the other flue 9.

As shown with reference to Figure 3, the boiler is normally installed in position upon bricks 8.

It has been found that the particular construction of boiler described and shown in the drawings is efficient in operation and is easy to clean. Two of the particular features which render the boiler an improvement over existing boilers are (a) the shape and disposition of the combustion zone as defined particularly by the vertically disposed back panel 2, and (b) the vertically disposed flues located above the combustion zone, and defined by the pair of panels 4 and 6.

As shown in Figure 3, bridging panel 4 is substantially triangular in cross-section, the front wall of bridging panel 4 being inclined relative to the rear wall of the panel. Thus the front wall of the panel deflects hot gases rising from the combustion zone and thereby promotes contact between the hot gases and the panel 4.

Claims

1. CLAIMS;

1. A ; boiler of the kind referred to, characterised in that the boiler has two further panels bridging and interconnecting the side panels of the boiler, 5 namely a primary bridging panel forward of the back panel, and a secondary bridging panel located between the back panel and the primary panel so as to define two substantially vertically disposed flues above the combustion sone, one of the flues being located between the back panel and the 10 secondary bridging panel and the other of the flues being located between the secondary bridging panel and the primary bridging panel.

2. A boiler as claimed in Claim 1, in which at least one of the flues is located directly above the combustion zone.

3. A boiler as claimed in Claim 2, in which the operation 15 of at least one of the two flues is independently controllable.

4. A boiler as claimed in Claim 2, in which one or both of the fluesis controllable by a shutter mechanism.

5. A boiler as claimed in any of the preceding claims, in which the side panels are generally triangular when viewed 20 in plan, the width of each panel decreasing from its rear end which is joined to the back panel, towards its front end.

6. A boiler as claimed in Claim 5, in which the front end of each side panel is truncated to provide a flat profile.

7. A boiler as claimed in any of Claims 2 to 6 inclusive, 440 0 S in which, the secondary bridging panel is substantially narrower than the primary bridging panel.

8. A boiler as claimed in any one of the preceding claims, in which at least one of the bridging panels is shaped to promote contact with hot gases rising from the combustion zone.

9. A wrap around back boiler substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings.