12
rain out. It is recommended that you at least cover the chimney during the summer months
when the furnace is not in use to keep rain, birds and other insects from getting in the furnace.
The light, pump, and blower can all be visually inspected and should only need replacing
when they quit working. They should last for several years however conditions are different at
every site and longevity may vary based on your climate and maintenance.
T
ROUBLE
S
HOOTING
S
QUEALING
P
UMP
On initial start up if the pump is not primed with water it may squeal and can burn your pump
out. Make sure the ball valve to the pump is open and the water tank is full.
On occasion the pump may get a piece of debris in the impellers from the installation process.
Shut the ball valves off and remove the pump. Take a clean garden hose and spray water
through the impeller housing to wash out any debris. Then replace the pump and start it back
up.
C
AN
I
O
PERATE THE
F
URNACE
W
ITH
A
SH
D
OOR
O
PEN
It is not recommended that you operate the furnace for very long with the ash door open. This
will cause your furnace to over heat.
W
ATER IS NOT GETTING HOT
Several things may contribute to this problem.
Check that the fire is getting enough air. You can open the ash door for a short period
of time with everything on and see if the water temperature rises. Make sure there is not
obstruction in the chimney or in front of the blower hole.
The fire may be getting too much air. This is a trial and error situation, adjust the tear
drop damper.
Ashes may be built up too much in the fire chamber. Before you stoke the fire make
sure you take a shovel or some device and rake the coals towards the middle of the furnace.
Ash build up around the edges work to insulate the fire box from the fire and do not let it heat
like it was designed to.
You may be burning too much green wood. It takes a large amount of Btu’s to
burn/boil off the water in a green log. This makes the fire burn cooler than when you use
seasoned wood. Try getting a mix of wood in the furnace, some green and some dry.
Your water lines may not be insulated enough. If you have exposed lines, or lines that
run through uncontrolled environments you may look into insulating them or putting more
insulation on them. Insulation is key to your performance.
Your blower in the house will drop the water temperature as much as 20 degrees. If
the temperature of the furnace water is not above 150, it makes it real hard to recover
temperature loss when the blower is on. Try turning the blower off and work with the fire to
recover heat in the water.
L
INES NOT GETTING HOT BUT WATER IS HOT
The water is not moving to the house or through the house.
Make sure the return ball valve is open at the furnace and that all valves are open
through the house.
If you have a multi-speed pump try increasing the speed.
It could be that you have an air bubble stuck in the lines somewhere. Turn the pump
off and loosen the bottom flange bolts until water will run out. Shut off the ball valves to the
Summary of Contents for Bear Cub 305 Series
Page 1: ...Bear Cub 305 Series ...
