GB2076144A - Fireplaces - Google Patents

Abstract

A fireplace comprises a closed firebox (9) with a removable top cover (6) forming a cooking hob. A water space (12) surrounds the firebox for a hot water supply, and is augmented by a piped heat exchanger (15). <IMAGE>

Description

SPECIFICATION Fireplace Nowadays a fireplace frame is mostly made out of expanded clay cement and other insulating materials; with a cast iron and/or refractory material level, with grates and various openings for the aeration necessary to combustion and the ash collecting where the solid fuel is put for combustion. Other fireplaces have frames of steel, cast iron, copper, etc., sheet with air spaces for the heating of the air that flows through them and is then naturally or forcedly distributed among the rooms. The air heating is produced by the combustion products of the solid fuels burning on the fireplace level. The fire place frame is completed with a hood collecting the smokes that must be pushed into the discharge conduit; these fireplaces are outerly coated with bricks, wood, worked copper panels, etc., to be pleasant and fit for the inhabited environment where they are put in.There are, moreover, hot water boilers used for heating, little fit to be put in normal habitation rooms chiefly because lacking in the aesthetics of a fireplace. And there are stoves with cooking levels and for heating purpose, whose heating, effect, however, for one or more rooms, results uneven.

Considering the present energy shortage which has led to a revaluation of solid fuel operated fireplaces, stoves and boilers to heat house rooms as alternative to petroieum and its derivatives, we have purposely studied a water space framed fireplace and firebox with a heating boiler exchanger; with a stove-like cooking level operating with solid and/or liquid and or gaseous fuel, in order to obtain the following benefits: 1) Fireplace with a traditional fireplace look which can be used in the traditional way.

2) Fireplace with the supportting or fire level having the peculiarities of a stove supporting level as it may be used to cook food and to give heat to the sorrounding rooms.

3) Fireplace that may be used, supplied with those equipments of operation and control provided by the present set of rules, as a boiler producing hot water to be sent to the heat distributors as radiators, convectors, boilers, etc.

normally used in thermohydraulic technics of civil housing.

4) Fireplace carrying a boiler on its frame having, beneath the fireplace level, one or more fireboxes of shape fit to burn wood, coal, diesel oil, kerosene, gas, etc., and relative burners and operation equipments.

5) Fireplace of traditional look and functionality, including the benefits of a stove and a boiler.

These and other aims are reached by the present fireplace, whose operation occurs as follows.

for a normal use of the fireplace the solid fuel is laid on the fireplace level and fire and combustion products lap the front and side, innerly, walls of the fireplace yielding heat to the water contained in the adapted water space before they are collected by the hood and expelled into the air; for the use of the fireplace as stove and boiler, its level is movable and provided with circles like a stove level both to enter the firebox below and to be used as cooking level. In facts said level is heated by the products burning in the firebox, which are sent to the chimney hood and/or to the flue through an exchanger placed inside the metal fireplace walls defining the water space for the heating water. The fireplace level may be removed, completely or partially, to permit the firebox charge and cleaning.The solid fuel will lay on a suitable grate, in its turn laid on the firebox bottom. Said bottom could also be supplied with a water space or made out of refractory material, adapted to collect ashes and with fit openings towards the outside to permit an adjustable entering of the air needed to combustion.

The fireplace water space is provided with a delivery pipe for hot water, a return pipe and all the equipments necessary to the modern operation of a heating boiler.

The fireplace hood will be provided with air locks, registers, exhauster and all is necessary to the best operation of this fireplace.

By way of example, and not as a restriction, we give the following description, drawings included, presenting a particular embodiment of this fireplace, in which: Figure A is a front view of the fireplace; Figure B is a cross-sectional view of the fireplace taken along the line D-D; Figure C is a plan of the fireplace taken along the line E-E.

In Figure A you notice: the fireplace supporting feet 1 touching floor 2; the refractory cement base 3 utilized as firebox bottom; the drawer 4 for collecting and extracting ashes; the adjustable slits 5 for the entering of burning air. Level 6 contains upwardly the firebox and works as both a stove-like cooking level and a fireplace fire level, limited frontally and laterally by walls 7. The hood collecting the smokes to send to the flue is indicated as 8.

In Figure B you notice: the floor 2, the refractory material base 3, the drawer to extract ashes 4, the adjustable slits 5 which let in the air needed by combustion in the direction of arrow F, the cooking or fire level 6, the walls 7 and the smoke hood 8 (also visible in Figure A). Moreover you can notice the firebox 9 delimited laterally by wall 10 which, together with wall 11, defines the water space 12 closed on top by a portion of level 6 and on bottom by wall 13. Walls 7 and wall 11 define the prosecution of water space 12 closed on top by wall 14. In a portion of fined by walls 7 and 11 is placed the exchanger 15 formed by pipes which are internally crossed, in space 16, by the combustion products which are burning in firebox 9 and outerly watered by water 12.In the drawing, firebox 9 is provided with a removable grate 17, adapted to wood, coal, sawdust, etc.

combustion. With 19 we indicate the pipelines for the delivery and coming back of the hot heating water produced by the fireplace; 20 is a house wall; 21 is a deflector hinged on H point and moveable in the direction of arrows G, which can assume different positions according to the fireplace operation as a fireplace and/or a stove and/or a boiler.

In Figure C you notice: the exchanger pipes 15, the metal walls 10-11-7-14 collecting water in the space 12; the cooking and fire level 6 provided with moveable circles 18, which can be replaced by a grate fit for air passing and ash falling during the operation of the level as fire level of a normal fireplace.

It is understood that in the practical carrying out, said fireplace can be simplified or can get completions according to particular requirements.

Claims (7)

Claims

1. A water space framed fireplace, comprising a closed firebox laterally bounded by a water space and upwardly by a removable hob.

2. A water space framed fireplace according to claim 1, wherein the firebox may receive combustion air through openings or slits, and has dampers to adjust the arrival or flowing therein of said air, which can be controlled through thermostats or else, one or more inlet and exhaust pipes.

3. A water space framed fireplace according to claim 1 or 2, wherein one or more exhaust pipes pass through said water space.

4. A water space framed fireplace according to any of claims 1 to 3, including a hood having a damper adjustable as a normal smoke ejector and a means of ejecting food smells and vapours.

5. A water space frame fireplace according to any previous claim in which the closed firebox is divided into several portions to operate separately and distinctly with solid, liquid or gaseous fuels.

6. A water space framed fireplace according to any previous claim, characterized in that it presents passages for the combustion products, from the respective firebox to the hood, separate and distinct, in accordance to the apparatus operation either as fireplace and/or as boilerstove.

7. A fireplace constructed and arranged substantially as hereinbefore described and shown in the accompanying drawings.