Jotul F3: 3.0 Installation

22

Wood consumption

Jøtul F 

3 

has a nominal heat output of 

6,0

 kW. Use of wood, 

with nominal heat emission: Approx. 

2,0 kg/h

. Another 

important factor for proper fuel consumption is that the 

logs are the correct size. The size of the logs should be:

Kindling:

Length: 20 - 30 cm

Diameter: 2 - 5 cm

Amount per fire: 6 - 8 pieces

Firewood (split logs):

Length: 30 cm

Diameter: Approx. 8 cm

Intervals for adding wood: Approx. every 60 minutes

Size of the fire:  2 kg

Amount per load:  2 pieces.

Nominal heat emission is achieved  when the air vent is open 

approximately 100%.

3.0 Installation

3.1 Floor

Foundations

It must be ensured that the foundations are dimensioned for 

the fireplace. Cf. 

«2.0 Technical data»

 for specification of weight. 

It is recommended that flooring which is not fastened to the 

foundations – so-called floating flooring – is removed during 

installation.  

Requirements for protection of wooden 

flooring 

Jøtul F 

3

 has a heat shield underneath which protects the floor 

from radiation. The product can therefore be placed directly 

on a wooden floor that is covered by a metal plate or other 

suitable, non-inflammable material. The recommended minimum 

thickness is 0,9 mm. 

Any flooring made of combustible material, such as linoleum, 

carpets, etc. must be removed from under the floor plate.

Requirement for protecting combustible 

flooring in front of fireplace

The front plate must be in accordance with national laws and 

regulations.

Contact your local building authorities regarding restrictions and 

installation requirements.

3.2 Walls

Distance from the wall of flammable 

material – cf. fig. 1  

The fireplace is authorised for use with an uninsulated flue with 

the distances to the wall of flammable material as shown in 

fig 1. 

Distance to the flammable wall protected by 

a firewall

Firewall requirement

The firewall must be at least 

100 mm thick 

 and be made of brick, 

concrete-stone or light concrete. Other materials and structures 

with satisfactory documentation may also be used.

3.3 Ceiling

There must be a minimum distance of 

1200 mm

 to a combustible 

ceiling above the fireplace.

3.4 Chimneys and flue pipes

•  A chimney can be linked to the fireplace and flue approved 

for solid fuel-fired fireplaces with a flue gas temperature as 

specified in 

«2.0 Technical data»

. 

•  The cross-section of the chimney must be at least equal to 

the cross-section of the flue. Please use 

«2.0 Technical data» 

to calculate the correct cross-section of the chimney. 

•  Several solid fuel-fired fireplaces can be connected to the 

ENGLISH

23

ENGLISH

same chimney if the cross-section of the chimney is adequate.

• 

Connection to the chimney must be carried out in accordance 

with the installation instructions from the supplier of the 

chimney. 

•  Before making a hole in the chimney the fireplace should be 

test-mounted in order to correctly mark the position of the 

fireplace and the hole in the chimney.  See 

fig. 1

 for minimum 

dimensions. 

•  Ensure that the flue pipe is inclined all the way up to the 

chimney.

•  Use a flue pipe bend with a sweeping hatch that allows it 

to be swept.

Be aware of the fact that connections must have a certain 

flexibility in order to prevent movement in the installation 

leading to cracks.

 N.B. A correct and sealed connection is very 

important for the proper functioning of the product.

The chimney draught, see «2.0 Technical data». If the draught is 

too strong you can install and operate a flue damper to control 

the draught.

3.5 Assembly prior to installation

N.B. Check that the fireplace is free of any damage prior to 

commencing installation. 

The product is heavy! Make sure you have assistance when 

erecting and installing the fireplace.

After unpacking the stove - take out the items which are packed 

inside it 

(fig. 2)

. These items are ash lip and a door handle knob, 

along with a plastic bag of screws for component assembly. 

1.  Unhook the door. Do not loosen the washer which is under 

the lower hinge pin.

2.  Remove the top-plate of the stove. This is connected to the 

side plates with two collar head screws. In this way it is easier 

to move the stove

 (fig. 3)

. 

3.  Install the ash lip by hooking it onto the front, just below 

the door 

(fig. 2C)

. 

4.  Screw the door handle knob to the front door handle 

(fig. 2D)

.

Choose a Flue Exit Position 

The Jøtul F 

3

 is equipped with a rear heat shield as standard, 

and has a cast knockout on the rear and sides, which has to be 

removed in order to install the flue pipe.

Caution! Remove the door prior to striking the knockout, to avoid 

breaking the glass.

Rear vented

1.  If the stove is to be installed in a rear-exiting configuration, 

remove the cover plate 

(fig. 4A)

 on the heat shield using a 

cutting pliers. 

2.  Touch up any remaining sharp edges with a file. 

3.  Then, use a heavy mallet and strike hard in the middle of 

the knockout.

Side vented 

•  The knockout can be removed from the inside 

(fig. 5)

.

Top vented  

• 

When assembling the top, the top plate is unscrewed. Remove 

the screw which fastens the cross bar (see 

fig. 6

).

• Place 

the 

gasket 

(Fig. 7 A)

 on the underside of the smoke 

outlet 

(Fig. 7 B)

.

• 

Mount the smoke outlet with use of the supplied screws and 

cross bar 

(Fig. 7 C)

.

NB.  Some enameled models have been prepared for rear flue 

outlet. Ensure all possible unused flue outlets are suitably 

blanked off. 

Assembling of the flue

1.  Use a flue pipe bend with a sweeping hatch that allows it to 

be swept if top exit is choosen.

2.  Remove the round ‘knock out’ in the top of the stove by 

removing the screw which fastens the cross bar (see 

fig. 6

). 

Then take the flue cover off .

3.  Using nuts, bolts, washers and spacers (with a spacer between 

the hole in the stove and the flue pipe), secure the flue pipe 

into place.

4.  Seal the remaining gap around the flue pipe with fire cement.

3.6 Control of functions

When the product is set up, always check the control 

functions. These shall move easily and function satisfactorily.

The Jøtul F 

3

 is equipped with the following controls:

Ignition vent control.  

Fig. 2A

Air vent control.  

Fig. 2B

Ashdoor/pan 

Fig. 2C

3.7 Ash removal

Jøtul F 

3

 is equipped with an outdoor ash pan, which makes it 

easy to remove the ashes. 

1.  Scrape the ash through the grate in the base plate and into 

the ash pan. Use something like a glove to grab the handle 

on the ash pan and take away the ash. 

2.  Make sure that the ash pan doesn’t fill up so high that it keeps 

ash from coming through the grate into the pan. 

3.  Make sure the door to the ash pan is securely shut when the 

stove is in use.

For the rest, see description of how to handle ash in the Manual 

on general use and maintenance in Point 

«6.1 Fire preventive 

measures».