Lennox Hearth MONTEST 5

Slow Combustion

When the air combustion control is completely closed, the ﬁreplace is in a slow combustion phase. If the hearth is hot enough, slow combustion will not extinguish the ﬁre, but there will be a noticeable change in the ﬂame pattern. The ﬂames will be slow and may appear dirty if the wood is too wet (moisture content of 20% and more).

Do not allow the wood to burn without ﬂame, since this will produce excessive creosote in the unit. Creosote may accumulate on the glass door. This method of burning should be used only after operating the Montecito Estate™ with the air control opened to produce a hot ﬁre for about an hour or at medium pace for at least three (3) hours. Slow combustion can be used at night in order to reduce the heat output and to prolong the burn. The loading time will be between 6-8 hours and at this combustion rate, the level of BTU’s is at its lowest.

Figure 4 - Slow Combustion

Building a Fire

A)To start a ﬁre, place several crumpled up balls of newspaper in the ﬁrebox. Place small dry pieces of kindling on top of the paper, criss-crossing the kindling so that there are air spaces in between. The kindling should be placed at the center of the ﬁrebox so as to allow for sufﬁcient air circulation.

B)Adjust the primary air control and start the time delayed air-boost system by pushing the register towards the right. Light the newspaper. Leave the doors partially opened to facilitate the start-up.

C)Once kindling ﬁre is well established, cord wood can be added. You may set the primary air control to the desire level (see Primary Air Combustion Control and Air Boost Con- trols section for proper operation of the air controls).

D)Set the primary control to the desired burn level. The ﬁreplace will automatically go to that level after the ﬁre is fully established and the air boost is closed.

The unit will burn best with 2-3 pieces of cord wood spaced 1 to 2 inches apart and allowing air to get under the fuel. Criss-crossing or arranging the fuel so that air can get underneath will help the ﬁre to get started easily. The unit should be operated with the air control fully open long enough to get the cord wood well ignited.

REFUELING FOR BEST PERFORMANCE

To reload the Montecito Estate at the end of a combustion cycle, when no ﬂame is visible and there are only ashes left:

A)Completely open the air control level and the T.D.A.B. (Time Delay Air Boost) level. See Figure 1.

B)Open the doors about 1” and wait 5 seconds until the air ﬂow has stabilized. Then open the doors completely, put the logs in and close the doors.

C)Set the air control to the desired burn level. The T.D.A.B will close by itself progres- sively.

To reload the Montecito Estatewhen the ﬁreplace is still hot with a few visible ﬂames:

A)Open the air control completely. The T.D.A.B can be set to a lower setting in order to facilitate lighting.

B)Open the doors about 1” and wait 5 seconds until the air ﬂow has stabilized. Then open the doors completely, put the logs in and close the doors.

C)Set the air control to the desired burn level.

Notes:

•For spectacular ﬁre and optimization of the ﬁreplace efﬁciency, we recommend that the wood load be placed as far back as pos- sible.

•It may be necessary to turn off any blower(s) in operation during the refueling process in order to minimise smoking in the room. It is recommended to wait 15 to 30 minutes before turning the blower(s) back on to ensure successful rekindling.

SMOKING –

CAUSES AND TROUBLESHOOTING

To reduce the likelihood of smoke coming into the room when opening the door, set the combustion air controls to the left (“Acceler- ated Combustion”) before opening the door. Your ﬁreplace has been designed and tested to provide smoke free operation.

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

As the ﬁre burns, air goes up the chimney. This air must be replaced through the outside air duct. When operating the Montecito Estate, open a nearby window temporarily to check if there is adequate air supply replacement. Occasionally, there may be a small amount of smoking upon lighting the ﬁre, until the chimney heats up but this should not last. If the ﬁreplace continues to smoke it is probably for one of the following reasons:

A. The doors are partially opened

When you open the doors, open them com- pletely.

B. Negative pressure in the house

C. Fans operating (e.g.: range hood)

These fans draw air out of the house and may actually cause a negative pressure in the house. Turn off all fans and open a nearby window to determine if this is the cause of the problem.

D. Wet wood

Wet or tarred wood will smoulder and smoke instead of burn properly.

E. Dirty or blocked chimney

Check to make sure the chimney is clear and clean.

F.Chimney not long enough

The minimum chimney height is 12 feet not including the ﬁreplace height. The chimney must extend at least three (3) feet (915 mm) above its point of contact with the roof and at least two (2) feet (610 mm) higher than any roof or wall within ten (10) feet (3 m) of it. When installed with offsets, the mini- mum chimney height is 15 feet. Additional height will increase draft and will decrease the tendency to smoke.

G.Poor chimney draft

With no ﬁre, there should be sufﬁcient draft to exhaust cigarette smoke introduced under the bafﬂe. Chimneys installed against an outside wall without protection may gener- ate back draft problems which will cause start-up problems. To prevent this, open a nearby window; roll up a piece of paper, light it and hold it in the upper part of the ﬁrebox to warm up the chimney. Wait until the draft is sufﬁcient, then start the ﬁre.