Solo Innova Instructions 1-800-782-9927 Version 01-18
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
4.11.2 Cleaning Firebox Aprons
Firebox aprons are fitted along the sides of the firebox
(Fig.4.4)
.
These firebox aprons should be taken
off once a month and any ash of creosote deposits behind them cleaned. The ventilation holes in each
side should be kept open
(Fig.4.6)
. Remember to be careful when working around the refractory.
4.11.3 Smoke Box and Heat Exchange Tube Cleaning
The smoke box, the flue outlet and the heat exchange tube areas should be cleaned twice a month with
the boiler brush. Let the boiler cool and shut off the power to the boiler. Remove the upper insulating
cover, smoke box cover plate and the turbulators from the heat exchange tubes. Insert the brush into
each heat exchanger pipe and work back and forth thoroughly. Push the brush all the way through, but
be careful not to damage the bottom plate underneath. Remove fly-ash from the smoke box area
above the heat exchange tubes. Ash that falls down to the bottom of the heat exchanger tubes during
cleaning can be removed though the ash door as described above.
When reinstalling the smoke box cover, make sure that the Bakelite tightening knobs on the “L” bolts
that secure the cover in place have been loosed sufficiently to allow the “L” bolts to be rotated to fully
engage the lug on the boiler body
(Fig. 4.7 and Fig. 4.8).
If the bolts do not fully engage the lug on
the boiler, the cover may not fully seal the smoke box allowing for an air leak through the smoke box,
decreasing the efficiency of the draft fan.
Boiler Operation, Maintenance, and Service > Cleaning and Maintenance
Page 43
Fig. 4.5
Fig. 4.6
Apron
Firebox with Aprons Removed
Ventilation Holes
Primary Air Ventilation Holes
Fig. 4.7
Fig. 4.8
“L” Bolts
Smoke Box and Heat Exchangers
Smoke Box
Cover
Lugs
