GB2151014A

GB2151014A - A boiler

Info

Publication number: GB2151014A
Application number: GB08426237A
Authority: GB
Inventors: Henry Megahey
Original assignee: Individual
Current assignee: Individual
Priority date: 1983-10-18
Filing date: 1984-10-17
Publication date: 1985-07-10
Also published as: GB8426237D0; GB8327805D0; GB2151014B; IE842681L; IE51730B1

Abstract

A boiler which may be used as a wrap-around boiler has a back panel 2 connecting two side panels 1. Interconnecting and bridging the side panels 1 are five flue panels 10, 10a, 10b, 10c and 10d which protrude into the flue passage 12. A removable bridging plate 11 closes off the flue passage 12. Smoke and hot gases from the combustion zone 4 wind their way upwardly through the boiler heating the flue panels. The boiler may also be modified to be used as a stove type device or as an oil or gas burner. <IMAGE>

Description

SPECIFICATION A boiler The present invention relates to boilers and is particularly concerned with wrap-around back boilers, although the invention is also concerned with stove type devices and gas and oil fired boilers.

A wrap-around back boiler is used to extract heat from a domestic open fireplace and essentially comprises a substantially vertically disposed back panel connecting substantially vertically disposed side panels. The term panel as used in connection with boilers is used to indicate a water chamber or passage.

The invention provides a boiler having a back panel connecting two side panels between which are defined a combustion zone and an enclosed flue passage above the combustion zone, the flue passage being provided with a plurality of flue panels bridging and interconnecting the side panels and so arranged that in operation smoke and hot gases emnating from the combustion zone wind their way generally upwardly between the flue panels so as to heat said flue panels.

Advantageously, the flue panels are in a mutually staggered relationship, extending alternately from the back of the flue passage towards but not as far as the front thereof and from the front towards but not as far as the back thereof.

Preferably, a bridging plate extends between the front ends of the forward flue panels so as to form the enclosed flue passage.

Conveniently, the bridging plate is removably engaged with said flue panels.

The boiler of the invention may be used as a wrap-around back boiler. Alternatively, the boiler may be additionally provided with a flue hood and a front plate to form a stove type device. A solid fuel automatic feed unit may be fitted to the device. The boiler may also be used with gas or oil by providing a flue hood and a front plate together with a gas or oil burner.

The invention will now be more particularly described with reference to the accompanying drawings which show, by way of example only, a number of embodiments according to the invention.

In the drawings: Figure 1 is a sectional side elevation of a boiler according to the invention in use as a wrap-around back boiler; Figure 2 is a front elevation of the boiler; Figure 3 is a side elevation of the boiler; Figure 4 is a plan view of the boiler; Figure 5 is a side elevation of the boiler modified for use as an oil burner; Figure 6 is a side view of a front plate and solid fuel automatic feed unit for use with the boiler of the invention; and Figure 7 is a side view of a front plate and a portion of a gas burner for use with the boiler of the invention.

Referring to Figs. 1 to 4 of the drawings, the boiler shown is a wrap-around back boiler having side panels 1, connected by a back panel 2 and five flue panels 10, 1 0a, 1 0b, 10c and 10d. In the side panels 1 are pipe sections 3, by means of which the boiler may be connected to a conventional radiator central heating or domestic hot water system.

The flue panels 10, 1 Oa, 1 Ob, 1 Oc and 1 0d are substantially horizontally disposed relative to the back panel 2. Two of the flue panels 10 and 10a extend from and are in fluid communication with the back panel 2.

The flue panels 10 and 1 0a are interspaced between the other flue panels 1 0b, 1 0c and 1 0d which are within the flue passage 1 2 and are located remote from the back panel 2.

Closing off the flue passage 1 2 is a cast iron removable bridging plate 11 which extends between flue panels 1 0b, 1 Oc and 1 or.

Smoke and hot gases from the combustion zone 4 rise upwardly through the flue passage 1 2 in a wave-like manner, heating each of the flue panels as they do so. Entry to the flue passage 1 2 is located directly over the combustion zone 4. As is usual a grate 1 3 is used to support the fuel 14 being consumed. A damper 7 at the top of the flue passage 1 2 may be used to regulate the draught through the flue passage. A handle 8 is provided for operating the damper 7.

For cleaning purposes the briding plate 11 may be removed to allow access to the flue passage 12.

Fig. 5 illustrates how the boiler may be modified for use with oil. A flue hood 20 having a flue pipe connection 21 is placed over the boiler. A front plate 23 is provided at the front of the boiler together with an oil burner 24.

The boiler may be modified to function as a stove type device, in which case a flue hood 20 and a front plate 30 (Fig. 6) are provided on the boiler. A solid fuel automatic feed unit 31 my also be provided on the front plate 30.

The boiler may also be used with gas, when provided with a flue hood 20, a front plate 35 (Fig. 7) and a gas burner 36.

1. A boiler having a back panel connecting two side panels between which are defined a combustion zone and an enclosed flue passage above the combustion zone, the flue passage being provided with a plurality of flue panels briding and interconnecting the side panels and so arranged that in operation smoke and hot gases emanating from the combustion zone wind their way generally upwardly between the flue panels so as to heat said flue panels.

2. A boiler as claimed in Claim 1, in

**WARNING** end of DESC field may overlap start of CLMS **.

Claims

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION A boiler The present invention relates to boilers and is particularly concerned with wrap-around back boilers, although the invention is also concerned with stove type devices and gas and oil fired boilers. A wrap-around back boiler is used to extract heat from a domestic open fireplace and essentially comprises a substantially vertically disposed back panel connecting substantially vertically disposed side panels. The term panel as used in connection with boilers is used to indicate a water chamber or passage. The invention provides a boiler having a back panel connecting two side panels between which are defined a combustion zone and an enclosed flue passage above the combustion zone, the flue passage being provided with a plurality of flue panels bridging and interconnecting the side panels and so arranged that in operation smoke and hot gases emnating from the combustion zone wind their way generally upwardly between the flue panels so as to heat said flue panels. Advantageously, the flue panels are in a mutually staggered relationship, extending alternately from the back of the flue passage towards but not as far as the front thereof and from the front towards but not as far as the back thereof. Preferably, a bridging plate extends between the front ends of the forward flue panels so as to form the enclosed flue passage. Conveniently, the bridging plate is removably engaged with said flue panels. The boiler of the invention may be used as a wrap-around back boiler. Alternatively, the boiler may be additionally provided with a flue hood and a front plate to form a stove type device. A solid fuel automatic feed unit may be fitted to the device. The boiler may also be used with gas or oil by providing a flue hood and a front plate together with a gas or oil burner. The invention will now be more particularly described with reference to the accompanying drawings which show, by way of example only, a number of embodiments according to the invention. In the drawings: Figure 1 is a sectional side elevation of a boiler according to the invention in use as a wrap-around back boiler; Figure 2 is a front elevation of the boiler; Figure 3 is a side elevation of the boiler; Figure 4 is a plan view of the boiler; Figure 5 is a side elevation of the boiler modified for use as an oil burner; Figure 6 is a side view of a front plate and solid fuel automatic feed unit for use with the boiler of the invention; and Figure 7 is a side view of a front plate and a portion of a gas burner for use with the boiler of the invention. Referring to Figs. 1 to 4 of the drawings, the boiler shown is a wrap-around back boiler having side panels 1, connected by a back panel 2 and five flue panels 10, 1 0a, 1 0b, 10c and 10d. In the side panels 1 are pipe sections 3, by means of which the boiler may be connected to a conventional radiator central heating or domestic hot water system. The flue panels 10, 1 Oa, 1 Ob, 1 Oc and 1 0d are substantially horizontally disposed relative to the back panel 2. Two of the flue panels 10 and 10a extend from and are in fluid communication with the back panel 2. The flue panels 10 and 1 0a are interspaced between the other flue panels 1 0b, 1 0c and 1 0d which are within the flue passage 1 2 and are located remote from the back panel 2. Closing off the flue passage 1 2 is a cast iron removable bridging plate 11 which extends between flue panels 1 0b, 1 Oc and 1 or. Smoke and hot gases from the combustion zone 4 rise upwardly through the flue passage 1 2 in a wave-like manner, heating each of the flue panels as they do so. Entry to the flue passage 1 2 is located directly over the combustion zone 4. As is usual a grate 1 3 is used to support the fuel 14 being consumed. A damper 7 at the top of the flue passage 1 2 may be used to regulate the draught through the flue passage. A handle 8 is provided for operating the damper 7. For cleaning purposes the briding plate 11 may be removed to allow access to the flue passage 12. Fig. 5 illustrates how the boiler may be modified for use with oil. A flue hood 20 having a flue pipe connection 21 is placed over the boiler. A front plate 23 is provided at the front of the boiler together with an oil burner 24. The boiler may be modified to function as a stove type device, in which case a flue hood 20 and a front plate 30 (Fig. 6) are provided on the boiler. A solid fuel automatic feed unit 31 my also be provided on the front plate 30. The boiler may also be used with gas, when provided with a flue hood 20, a front plate 35 (Fig. 7) and a gas burner 36. CLAIMS

2. A boiler as claimed in Claim 1, in which the flue panels are in a mutually staggered relationship, extending alternately from the back of the flue passage towards but not as far as the front thereof and from the front towards but not as far as the back thereof.

3. A boiler as claimed in Claim 2, in which a bridging plate extends between the front ends of the forward flue panels so as to form the enclosed flue passage.

4. A boiler as claimed in Claim 3, in which the bridging plate is removably engaged with the forward flue panels.

5. A boiler as claimed in any one of the preceding claims which is adapted to be used as a wrap-around boiler.

6. A boiler as claimed in any one of Claims 1 to 4 which is provided with a flue hood above the flue passage.

7. A boiler as claimed in Claim 6, which is provided with an oil or gas burner and a front plate closing off the front of the boiler.

8. A boiler as claimed in Claim 6, which is provided with a solid fuel automatic feed unit and a front plate closing off the front of the boiler.

9. A boiler substantially as herein described with reference to Figs. 1 to 4 of the accompanying drawings or as modified by any one of Figs. 5 to 7 of the drawings.