| Ft. | In. | Pts. | |||
| The smallest Size, Price 7l. 7s. set up | High | 2 | 3 | 0 | over all |
| Broad in Front | 1 | 5 | 0 | ||
| Depth from Front to Back | 1 | 0 | 0 | ||
| The Space that contains the Fire within this Stove, | |||||
| Broad in Front | 1 | 3 | 0 | ||
| Depth of the Bars | 0 | 5 | 6 | ||
| From Front to Back | 0 | 5 | 6 | ||
| Middle Size, Pr. 10l. 10l. set up | High | 2 | 4 | 6 | over all |
| Broad in Front | 1 | 9 | 0 | ||
| Depth from Front to Back | 1 | 0 | 0 | ||
| The Space that contains the Fire within this Stove, | |||||
| Broad in Front | 1 | 7 | 6 | ||
| Depth of the Bars | 0 | 8 | 0 | ||
| From Front to Back | 0 | 8 | 0 | ||
| Largest Size, Pr. 13l. 13l. set up | High | 2 | 10 | 0 | over all |
| Broad in Front | 0 | 2 | 4 | ||
| Depth from Front to Back | 1 | 4 | 6 | ||
| The Space that contains the Fire within this Stove, | |||||
| Broad in Front | 2 | 3 | 0 | ||
| Depth of the Bars | 0 | 10 | 6 | ||
| From Front to Back | 1 | 0 | 0 | ||
I find, by my own Experience, that the smallest Size of these Stoves, will warm a Room of Twelve or Fourteen Foot Square, or the largest Dressing Closet. The Middle-sized Grate will warm a Room of 20 Feet + 26, and 12 or 14 Feet high. The largest Size will warm a Room of 50 Feet by 25, and about 20 or 22 Feet high.
As I have not advanced any thing, but what I have proved from my own Experience, I shall omit what might be said from the Testimony of others, to Time, and the real Merit of the Machine; which, in all Respects, will answer for itself. For the Beginning of this Attempt was founded upon Theory and Mechanick Principles, supported by Observation and Experience of what had happened before.
But had not the same Observation and Experience, likewise confirmed the Use of this, and all the Advantages mentioned, I should not have offered it to the Publick.
Jermyn-Street, March 22, 1753.
ADVERTISEMENT.
The Inventor of this Stove-Grate has contrived a Stove for a Laundry, which answers all the Ends desirable, without any other Fire, and at one Third part of the usual Expence that keeps a Fire in the common Way. It is moveable to any part of the Room; and stands on a boarded Floor with the greatest Safety. It likewise may be placed in a Room where there is no Chimney, and will serve for Airing large Rooms, far preferable to the common Braziers; it warms a Room sooner, with greater Safety, and much less Expence: For Half a Bushel of Coals will go farther than a Bushel of Charcoal in the common Way.
FINIS.