Bixby Energy UBB Multi-fuel stove Assembly instructions

Installation, Operating and
Maintenance Instructions
UBB™ Multi-Fuel Stove
WARNING! PLEASE READ THIS ENTIRE MANUAL BEFORE INSTALLATION AND USE OF THE BIXBY UBB MULTI-
FUEL STOVE. FAILURE TO FOLLOW THESE INSTRUCTIONS COULD RESULT IN PROPERTY DAMAGE, BODILY
INJURY OR EVEN DEATH. CONTACT LOCAL BUILDING OFFICIALS, FIRE OFFICIALS OR THE AUTHORITY
HAVING JURISDICTION ABOUT RESTRICTIONS, PERMITS AND INSTALLATION INSPECTION REQUIREMENTS
IN YOUR AREA.
Save these instructions for future reference.
PLEASE RECORD THE FOLLOWING INFORMATION:
MODEL _______________ DEALERSHIP ______________ INSTALLER _______________
DATE PURCHASED _______________ DEALER PHONE ______________ INSTALLER PHONE _______________
SERIAL NUMBER ____________________________


2056754 REV B
10/29/2007

2
TABLE OF CONTENTS
Safety Information 3
Minimum Clearances to Combustible Materials
Specifications 5
Mobile Home Installation
Planning the Installation 7
Performing the Installation
Optional Thermostat Operation
Leveling the UBB
Venting Installation and Instructions 10
Venting Components
Vent Location
Location of Exhaust
General Vent Installation Instructions
Operating Instructions 20
Fuel
Start Up
Control Board Trim Pot Panel
Fine Tuning the UBB
Flashing Indicator Light System
Maintenance and Cleaning Procedures 26
Fire Pot/Burner
Ash Drawer
Heat Exchanger Tubes (weekly)
Soot and Fly-ash Formation and Need for Removal (yearly)
Exhaust Fan (yearly)
Cleaning the Exhaust Manifold (monthly)
Fuel Hopper (monthly)
Cleaning the Glass (as needed)
Cleaning the Feeder Tube (monthly)
Cleaning the Lower Paddle (monthly)
Cleaning the Air Filter for the Ignition Air Compressor (yearly)
Replacing the UBB Air Filter (2-3 months)
Flashing Indicator Light System 31
Troubleshooting Procedures 32
Service Parts List 36
Optional Accessories 37
Wiring Diagram 38
Venting Parts List 39
Maintenance Log 40

3
SAFETY INFORMATION
1. Install and use only in accordance with these installation and operating instructions, beginning page 10. Contact
local building officials, fire officials, or the authority having jurisdiction about restrictions, permits, and inspection
requirements in your area.
2. Refer to instructions and local codes for precautions required for passing the vent pipe through a combustible wall
or ceiling. Inspect and clean vent system frequently in accordance with manufacturer’s instructions.
3. DO NOT INSTALL A FLUE DAMPER IN THE EXHAUST VENTING SYSTEM OF THIS UNIT.
4. DO NOT CONNECT THIS UNIT TO A CHIMNEY SERVING ANOTHER APPLIANCE.
5. INSTALL VENT AT CLEARANCES SPECIFIED IN THE VENTING SECTION.
6. For use with only whole corn kernels, wood pellet fuel or approved pelletized biomass.
7. DO NOT BURN GARBAGE, OR FLAMMABLE FLUIDS SUCH AS GASOLINE, NAPHTHA OR ENGINE OIL IN YOUR BIXBY
UBB. Store any fuel away from your UBB.
8. Always unplug the UBB before cleaning or servicing.
9. Dispose of all ashes in a metal container.
10. The use of a protective screen (e.g. fireplace screen) is recommended when children or animals are present. See
your Bixby dealer for options.
11. DO NOT INSTALL IN A SLEEPING ROOM.
12. The door must be closed and latched during operation. Always allow the UBB to cool before opening the door to
clean the firebox and/or the glass. If door must be opened during operation, use caution as embers may escape
from combustion chamber.
 


 It is recommended that a carbon monoxide detector be installed to ensure protection from the hazards of carbon
monoxide. It is also recommended that a smoke detector be installed for early warning in case of fire.

               




4

Use a non-combustible floor protector under the unit, extending 6” (150mm) past the side of unit (or less if installed
at closer clearances) and 6” (150mm) in front of UBB door.
Alcove Dimensions (Rear Vent Only):
• Minimum Height - 62” (1575mm),
• Minimum Width - 35.5” (902mm),
• Maximum Depth - 24” (610mm)
B
AB
C
D
D
Freestanding and Alcove (rear only) Installation Clearances:
A 10.5” (267mm) D 6” (150mm)
B 2” (50mm) E 3” (75mm)
C 22” (560mm)
NOTE: Minimum clearances are for temperature concerns and do not allow for enough room for maintenance.
Please allow enough room on the sides for routine maintenance, 6” - 12” (150mm - 305mm) of clearance to non-
movable objects (i.e. walls) is recommended. Also, clearance to the back of the UBB is needed for replacement of
the filter.
D
E
Floor Protector
D

5
SPECIFICATIONS
:
Corn:
• Dry shelled corn, 16% moisture or less. Corn that is greater than 16% can generate mold in the hopper and
increase issues with condensation in the vent system
• DO NOT use “cracked corn” or seed corn.
• Due to a wide variety of hybrids, a sample from your intended corn supplier should be tested before purchasing a
substantial amount. Most varieties will burn in your UBB, however, Bixby Energy has found some varieties where
the physical and chemical properties make it difficult to burn in corn stoves.
• The use of lower quality corn with foreign material (cobs, stones, or other material) may cause feed issues. Before
loading the corn into the hopper, remove as much foreign material as possible.
: Varies depending on floor plan, heat loss, geographic location, altitude, UBB venting configuration,
moisture content of fuel, and climate.
 Install in accordance with this instruction manual and local building codes.
 400 pounds (181 kg)
 120 VAC, 60 Hz., 15 amp service required, grounded, dedicated line recommended
Start: 11 Amps
Run: 2 Amps
 Height = 40.5 in (1029 mm)
Width = 26.5 in (673 mm)
Depth = 30 in (762 mm)
 6.5 cu. ft. (approx. 5.2 Bu / 300 lbs shelled corn)
- optional 2.5 cu. ft. (approx 2 Bu / 110 lbs corn) hopper extensions are available from your Bixby dealer.
 The Bixby UBB Multi-Fuel stove was tested by OMNI-Test Laboratories, Beaverton, Oregon to ASTM
E1509 and ULC C1482 (report number 223-S-08-2). Emission tests were also conducted per the USA
Environmental Protection Agency test methods 28A and 5G for particulate emissions. The UBB is exempt
under 40 CFR 60.531, therefore the results have not been submitted to the EPA.
Wood:
• Premium wood pellets made for pellet stoves sized ¼ inch diameter x 1 ¼ inch long are acceptable.
• High-grade wood pellets may be used, but the frequency of cleaning the stove and venting components will need
to be increased.
Biomass:
• Pelletized biomass fuel sized ¼ inch diameter with a max length of 1 ¼ inch


6
IMPORTANT:
Proper material handling equipment must be available to safely transport and position the Bixby UBB.
1. The UBB is attached to the pallet with two bolts. Remove the side panels to gain access to the bolts. Remove the protective
packaging, using appropriate tools, and detach the unit from its shipping pallet.
2. Using a suitable transporting device, move the unit to the desired location, centering it on the Bixby Hearth Pad or an
alternate protective plate. Care should be taken not to mar the Hearth Pad. Placing protective material under the Bixby UBB
when positioning is recommended.
3. Use the included bulls-eye level to level the unit by adjusting the height of its legs. Leveling the unit is required to maintain
even fuel distribution. See Page 9 for more information.


             

1. A Bixby Direct-Vent system must be used to provide an outside air inlet for combustion air and must be unrestricted.
2. The UBB must be secured to the mobile home by bolting it to the floor (using lag bolts).
3. Refer to pages 16 and 17 for typical vertical or horizontal mobile home venting installation.
4. Refer to clearances to combustibles section on page 4 and 10 for distances to combustibles and appropriate chimney
systems.
5. Seal all wall and floor inlets to prevent air or moisture penetration. Check periodically to ensure inlet is free of obstruction,
such as snow and ice.
6. Installation should be in accordance with the Manufactured Home and Safety Standard (HUD), CFR 3280, Part 24.

7

The unit is shipped completely assembled. It is enclosed in protective packaging material and attached to a shipping pallet. A
shop cart or other suitable material handling device (minimum capacity of 400 lbs. (180kg)) will be needed to transport the Bixby
UBB to its desired location. To bring the UBB into the room chosen, a door opening of at least 2 ft. 8 in.(80cm) will be needed.
Appropriate tools will be needed to connect the venting pipes and fittings, as well as a hole-cutting device for venting the piping
to the outside.
PLANNING THE INSTALLATION
The Bixby UBB is intended for use in buildings, manufactured homes or for mobile home installation (see previous page for mobile
home installation instructions).
 




               
             


To assure safe operation, it is absolutely essential that a floor protective device of metal or other non-combustible material be in
place beneath the UBB. Note drawing below to determine dimensions the size of the mat.
The non-combustible floor protector should extend beyond unit 3 in.
(75mm) to each side of unit when installed in a free standing location and 6
in. (150 mm) in front of the UBB door.
A = 3 in. (75mm)
B = 6 in. (150mm)

A
B
A

8

The UBB is designed so that it can be operated by a wall mounted thermostat. Any “on/off” 24V AC wall mounted thermostat can be
used. Follow the thermostat installation instructions carefully.
 Thermostat should be mounted on an inside wall and not in direct line with the UBB convection air. A preferred
location would be on an inside wall opposite the UBB.
When the thermostat is calling for heat, the UBB will display the currently selected level using the LEDs. If the thermostat is NOT
calling for heat, the currently selected level will be displayed, but all the LEDs will be slowly flashing in unison and the UBB will run
at level 1. The UBB will ramp back up to the selected heat level once the thermostat calls for heat again.

1. Unplug the UBB.
2. Remove the left side panel.
3. Locate the Trim Pot / Thermostat bracket.
4. Loosen the two screws on the thermostat block and
remove the metal jumper.
5. Run the wire for the thermostat through the opening
for the air filter on the back panel.
6. Attach the wires of the thermostat to the two terminals.
7. Replace the side panel.

Thermostat connection

9

 
 

The supplied bulls eye level can be used to level the UBB front-to-back and side-to-side. A 6 inch level may also be used.
1. Place the level centered side-to-side and about 8 in. (20cm) back from the front of the UBB on the top surface. The bubble
should end up centered inside the middle circle on the level. If the bubble is not in that position, the bubble will be towards
the high side of the UBB. See Figure 3.
2. Locate the leveling feet on the bottom of the UBB. See Figure 4.
• To ease the leveling process, adjust each foot 1/2” to 3/4” from the bottom of the stove first
3. Lift the UBB near the foot to be raised (low side, opposite the bubble on the level). A pry bar can be used to lift the UBB,
using a wooden shim or something similar to protect the hearth pad.
4. With the corner of the UBB elevated, place a piece of wood (or other blocking) under the UBB to hold it while adjusting the
leg. The leg length should be adjusted by hand, but if needed a wrench may be used. This will not work if the foot is turned
all the way in, as that portion will not be accessible.
5. Remove the block using the prybar and check adjustment.
6. Proceed to adjust the feet until the bubble is centered inside the inner circle. This is a very important step as the feed
system is gravity fed and it will ensure that the fuel is fed into the burn pot correctly.
 
Leveling
Legs
Bulls Eye Level
8”

10

Bixby Energy Direct Vent Pipe is listed by OMNI-Test Laboratories, Inc. as the venting system for Bixby Energy pellet and corn stoves.
NO OTHER PIPE IS LISTED FOR USE WITH BIXBY STOVES. The use of non-Bixby Energy vent pipe will void the stove’s warranty.
The minimum clearance from this vent to combustible materials is 2 in. (50mm). Combustible materials include but are not limited
to lumber, plywood, sheetrock, plaster and lath, furniture, curtains, electrical wiring, and building insulation of any kind. Never fill
any required clearance space with insulation or any other materials.
This vent is tested and listed by OMNI-Test Laboratories, Inc. to UL Standard 641 and to ULC/ORD-C441 (Canada) for safe low
temperature Type L venting systems, and produced under the factory inspection and follow-up program of OMNI-Test Laboratories,
Inc.


Proper planning for your vent installation will result in greater safety, efficiency, and convenience, saving both time and money. Use
only authorized BIXBY ENERGY, INC. listed parts. Do not install damaged parts.

Level (a six inch level is recommended)
Eye protection
Hammer
Screwdriver
Tape measure
High temperature waterproof sealant (min 500F)
Saber or keyhole saw
Stud finder
Adjustable wrench
Gloves
                

VENTING INSTALLATION AND INSTRUCTIONS


        


11


The use of pelletized fuel does not eliminate the need for inspection and cleaning. During the heating season, inspect monthly.

Contact your local building officials, fire officials, or the authority having jurisdiction about restrictions, permits, and inspection
requirements in your area.

• . If you
have doubts about your ability to clean it, contact a professional chimney sweep. Use a plastic, wood, or flexible steel
brush. Do not use a stiff brush that will scratch the stainless steel liner of your system.
• Bixby Direct Vent systems must be installed so that access is provided for inspection and cleaning.
• The vent system should be inspected at least once every month during the heating season.
• Chemical cleaners must be used with great caution. Use only those which are absolutely guaranteed not to corrode or have
any other harmful effects.
• In case of fire outside the firebox, shut off appliance and call your Fire Department. Do not use the appliance or vent until
it has been inspected for possible damage.
• Due to the nature of solid fuels and their production of ash, Bixby Energy is not responsible for flue by-products that might
discolor items such as ceilings, roofs, or walls.


Vertical Vent Cap
Vent Pipe
Storm Collar
Roof Flashing
Ceiling Firestop
Elbow
Thimble
Starter Collar
Horizontal venting kit
Decorative
Collar Ceiling firestop support
48 in. (122 cm)
36 in. (91 cm)
24 in. (61 cm)
12 in. (30 cm)
6 in. (15 cm)
45 deg
9.5 in
(24 cm)
7.4 in
(19 cm)
10.2 in
(26 cm)
5.5 in
(14 cm)
8 in.
(20 cm)
7 in.
(18 cm)
Usable length of
pipe will be 1 1/2”
less than listed
length due to
pipe overlap.
Horizontal Flashing

12

When exiting through walls, make sure NFPA rules are followed for distance from windows and openings.

The termination cap will be HOT during operation. Consider its proximity to doors or other traffic areas.
Per NFPA 211 - 2003 (Paragraph 10.4.5 and 10.7.1), the termination cap shall be:
· Not less than 1 ft. (300 mm) from any forced air inlet.
· Not less than 1 ft. (300 mm) above grade. Non-combustible ground cover shall be placed below the vent if
less than 3 ft. (900 mm) above grade.
· Not less than 1 ft. (300 mm) from any door , window  or gravity air inlet into any building.
· Not less than 2 ft. (600 mm) from an adjacent building and not less than 7 ft. (2.1m) above grade when
located adjacent to public walkways / paths .
 A deck may be considered to be a walk way - check with local building codes.
· Not within 3 ft. (900 mm) of a gas service regulator vent outlet (IMC 804.3.4).
· Not above a gas meter/regulator within 3 ft. (.9m) horizontally of the vertical center line of the regulator .
(IMC 804.3.4)
· Not less than 3 ft. ( 900 mm) below overhang (i.e. roof)
: To provide adequate ventilation, the termination cap should not be located under a deck.

Note: Areas in red are not acceptable
locations for venting the UBB. See
below for more details

13

Where passage through a wall or partition of combustible construction is desired, the installation shall conform to CAN/CSA-B365.
See specific venting instructions for more information.
The vent  connect to any air distribution duct or system, or exhaust into an enclosed or semi-enclosed area, but directly
to the outside. Termination in a garage, attic, crawl space or other location in which fumes can accumulate must be avoided. The
installation with the vent extending vertically through the roof of the building must have the proper termination cap installed. See
specific venting instructions for more information.
Bixby Energy recommends not installing a venting system in a pipe chase or permanent wall structure. Vent pipe should be
accessible for annual inspection and maintenance. Because solid fuel produces ash, Bixby Energy is not responsible for flue by-
products that might damage or discolor building structures (walls, floors, roofs, etc.). If the vent is to be installed inside an existing
masonry chimney or other unheated structure (or if excessive condensate forms), it is recommended that the structure be insulated
with non-combustible insulation (such as calcium silicate). See your local dealer for insulation options.

The vent connection is located on the back of the stove. See Figure 8 for
approximate dimensions. Measure actual location before cutting holes in
walls.
 If a hearth pad is used, add the height of the hearth pad to the
height of the vent connection from the base, or measure from the
top of the hearth pad with the pad in place.
 If a hearth pad is laid on top of carpet or other soft base, allow the
UBB time to settle and compress the carpet and pad before cutting
holes for venting.

9 1/2” to 9 3/4”
240mm to 250mm
5 5/8”
143mm

14

The allowable venting configuration is to be 25 equivalent horizontal feet (7.5 m) or less as determined through the following
table:
Type of Pipe Qty Factor (ft) Total
90 deg elbow x 5 (1.5m)
45 deg elbow x 3 (0.9m)
Horizontal Pipe x 2 (0.6m)
Vertical Pipe x 0.5 (0.15m)
Altitude (in thousands of feet) x 2.5 (0.8m)
Total
Type of Pipe Qty Factor (ft) Total
90 deg elbow 1 x 5 5
45 deg elbow x 3
Horizontal Pipe 1 x 2 2
Vertical Pipe 20 x 0.5 10
Altitude (in thousands of feet) 2 x 2.5 5
Total 22

NOTE: Horizontal runs should be minimized (48 in. (1.2m) maximum per section) to prevent the accumulation of ash. If
possible, replace horizontal offsets (two 90 degree elbows) with 45 degree offsets (two 45 degree elbows) to go around
building structures.
NOTE: Pipe runs at 45 degree are to be considered vertical for the above calculation.

15

Follow the UBB manufacturer’s instructions and safety manual for maximum efficiency and safety.
Connect only BIXBY ENERGY DIRECT VENT to the BIXBY UBB.
 
  
  
  
- The use of three (3) sheet metal screws (self-tapping screws are recommended) is required at every connection. Do not use
longer than 3/4 in. (20mm) screws to prevent damage to the inner pipe. The indents in the pipe will assist in the placement
of the screws.
 . Either high temperature
or clear silicone sealant is recommended for the outer 5 in. outside joint. A 1/4 in. (6mm) bead, 1/2 in. (12mm) from the
male (crimped) end of both sections of pipe is recommended. See Figure 9.
- The joint is not sealed unless the seam between the two outer sections of pipe is tight and the indent locks into the groove.
See Figure 10.

Indent locks into groove
Tight seam
 



Inside bead
(approx 1/4) Outside bead
(approx 1/4”)

16

The vent connection is on the back of the UBB (see Figure 8). If vertical interior installation
is desired:
NOTE: Vertical exterior installation is not recommended due to the potential for
excessive condensation.
NOTE: Bixby Energy recommends not installing a venting system in a pipe chase or
permanent wall structure (other than to exit the room using the Wall Thimble).
Vent pipe should be accessible for annual inspection and maintenance. Bixby
is not responsible for damages to pipe chases, or other wall structure resulting
from vent failures.
1. Place the UBB according to the installation instructions. See Figure 7 for vent
locations.
2. Connect a Starter Collar to the back of the UBB using three screws. See Figure
11.
3. Insert an Elbow through the Starter Collar, into the back of the UBB. Align and
push together until snapped into locked position. See Figure 11.
4. The outer pipe sections should not have a visible gap. See Figure 10.
5. Drop a plumb bob from the ceiling to the center of the Elbow connected to the
UBB and mark center point on the ceiling, cut and frame a 10 in. x 10 in. (25cm
x 25cm) square hole in the ceiling for the Ceiling Support Firestop. See Figure
12.
6. Connect the vertical pipe to the elbow attached to the UBB: Attach each
section of pipe by pushing male and female ends of pipe together until pipe is
in locked position. See General Vent Installation Instructions, page 15.
7. Install Wall Straps every four (4) feet in both vertical and horizontal vent runs
(required). See Figure 13.
8. When the pipe passes through the Firestop/Support at ceiling, attach the
vertical pipe support around the pipe and let it rest on the topside of the
Firestop/Support. If desired, a Decorative Collar can be installed over the
Firestop/Support for a finished look.
9. After lining up for hole in roof, use same method as above and cut either a
round or square hole in the roof. Always cut the hole at least 4 in. (10cm)
larger than the diameter of the pipe to allow for 2” clearance. Install the upper
edge and sides of Flashing under the roofing materials and nail to the roof
along the upper edge. Do not nail the lower edge. The Vent Cap must extend
a minimum of 24 in. (61cm) above the roof. See Figure 13.
10. Seal all nail heads with high-temperature waterproof sealant. To finish, apply
high-temperature waterproof sealant where the Storm Collar will meet the vent
and Roof Flashing; slide Storm Collar down until it sets on the Roof Flashing,
tighten the bolt on the Storm Collar, put the Vent Cap on and push to lock. See
Figure 14.

Starter Collar
10 in (25cm)
10 in (25cm)
Thimble



Wall Strap
Vent Cap
Pipe
Storm Collar
Roof Flashing
24 in
(61cm) min.

17

The vent connection is on the back of the UBB (see Figure 8). If a horizontal
through-the-wall installation is desired:
1. Place the UBB according to installation instructions. See Figure 7 for
vent locations.
2. Locate vent termination per the NFPA rules. See Figure 7.
3. Cut and frame a 10 in. X 10 in. (25cm x 25cm) square opening in the
wall (the hole in the wallboard may need to be larger). See Figure 12
(page 16). The telescoping Wall Thimble is to be installed in the interior
and exterior portion of the wall. (Wall Thimble adjusts from 4 ¼ in. to 7
in. (11cm to 18cm) to accommodate most wall thicknesses). See Figure
16.
- The Wall Thimble flanges are to be attached to the supports with
four screws, one in each corner. Use of 1/2 inch or longer screws are
recommended.
- The Wall Thimble may be covered on the inside by the Decorative Collar.
It is important to slide the collar on before adding additional venting.
4. Attach the outside vent flashing to the exterior wall with four screws.
Seal the outside section of the Horizontal Flashing and Wall Thimble to
the exterior wall with non-hardening sealant. Top tab is to be placed
under wall siding. Do not seal the bottom of the flashing.
5. Connect the Starter Collar to back of UBB and attach sufficient pipe to
the UBB to extend 12 in. - 15 in. (30-38cm) beyond the Flashing. See
Figure 16.
6. Anchor the pipe to the Horizontal Flashing with the three brackets
using the self tapping sheet metal screws shipped with the flashing.
The back/base of the cap is to extend
12-15 inches (30-38 cm) from the flashing. See Figures 15 and 17.
7. Attach the Vent Cap, noting orientation of embossment, to the extended
pipe. Use high temperature (500 F/260 C) silicone sealant between all
pipe joints. See Figure 9.
NOTE: Some amount of soot and discoloration may occur on the outside of
the house.
NOTE: If ice forms on the Vent Cap in cold weather, run the UBB on high for a
couple of hours to clear.


Vent Cap

Wall Thimble -
Outside
Decorative
Collar
Wall
2 inch air gap around pipe.
Do not fill with insulation!
12”-15”
30-38cm
Flashing
Clips
Decorative Collar Flashing
Thimble
Starter
Collar

18

For installation into a sloped ceiling, the Cathedral Ceiling Support Box is to be
used as the fire stop. Follow the instructions for vertical installation on page
16 up to step 4.
1. Mark a line on the side of the Cathedral Ceiling Support Box to
correspond to the line of the roof pitch. Allow for the Support Box
to protrude below the finished ceiling a minimum of 2 in (5 cm). See
Figure 18.
2. Position the appliance at its proper location on the floor. Pay close
attention to the installation instructions as to distances from
combustibles, etc. The appliance must also be positioned so that the
Support Box will not interfere with roof rafters or other structural
framing.
3. Run a plumb line from ceiling to the center of the vent pipe attached
to the UBB. Mark the point on the ceiling where the plumb line
intersects. This represents the center of the support box. Drill a small
hole through the ceiling at this point, so it can be located from the top
of the roof.
4. From the roof, locate and mark the outline of the Support Box.
5. Remove shingles or other roof covering as necessary to cut the
rectangular hole for the Support Box. Cut the hole 1/8 in (3 mm) larger
than the dimensions of the Support Box. The rectangular hole should
be centered on the small hole which you drilled through the ceiling
to mark the location. Again, ensure that you are not cutting through
rafters or framing members.
6. Run the Support Box through the roof, and place it so that the bottom
of the Support Box protrudes at least 2 in (5 cm) below the finished
ceiling. Align the Support Box vertically and horizontally with a level.
Temporarily tack the Support Box in place through the inside walls
and into the roof sheathing. See Figure 19.
7. Using tin snips, cut the Support Box from the top corners down to the
roof line, and fold the resulting flap over the roof sheathing. Before
nailing it to the roof, run a bead of non-hardening sealant around the
outside top edges of the Support Box so as to make a seal between
the box and the roof. Clean out any combustible material or debris
from inside the Support Box. See Figure 20.




19

8. Place the Vertical Support Clamp (5000576), around the top of the
hole in the bottom of the Support Box. See Figure 21.
9. Connect the necessary amount of pipe sections to reach the UBB at a
point where the Vent Cap will extend a minimum of 24 inch (61 cm)
above the roof. See Figure 22.
10. Run the assembled pieces of vent pipe down through the Clamp of
the Support Box and connect to the appliance with an Elbow and
Starter Collar. See General Vent Installation Instructions for details on
connecting the pipe together.
11. Using a level, make slight adjustments in the position of the appliance
until the pipe is truly vertical. Tighten the bolts in the Clamp.
12. Slip the Flashing over the pipe section(s) protruding through the roof.
Secure the base to the roof with roofing nails. Insure that the roofing
material overlaps the top edge of the Flashing. See Figure 22.
13. Seal all nail heads with high-temperature waterproof sealant. To
finish, apply high-temperature waterproof sealant where the Storm
Collar will meet the Vent and Flashing; slide Storm Collar down until it
sets on the Flashing, put the Vent Cap on and push to lock. See Figure
14 (page 16).


Clamp
Vent Cap
Storm
Collar
Roof Flashing
Cathedral Ceiling
Support Box
Vent Pipe
24 in
(610mm)

Due to cleaning, inspection, and condensation issues, Bixby Energy no longer recommends connecting the UBB to an existing Class
A chimney.

Due to cleaning, inspection and condensation issues, Bixby Energy no longer recommends connecting the UBB to an existing masonry
chimney. The venting may pass though the chimney to the outside; see previous pages for horizontal venting information.

20

• Open the hopper lid and fill the hopper with fuel.
• See Specifications (page 5) for fuel recommendations.
• The UBB is configured to burn corn from the factory. To burn wood pellets, simply open the left side panel and
locate the Control Board Trim Pot Panel. Rotate the knob labeled “Fuel Mix” from A to B. See Figure 23.
               


 Use of a surge protector is recommended but not required for UBB operation.
 



OPERATING INSTRUCTIONS
Fuel Mix

SPARE
EXHAUSTFEED
CONVECTION
FAN
ASH DUMP
FREQUENCY
FUEL
MIX
A
B
0
10
20
-10
-20
0
10
20
-10
-20
1x
1/2x
4x
BIX CHECK
RS-232
THERMOSTAT
CONNECTION
2052009 REV C
16x
30
-30
-30
30
8x
2x
1/4x