Metalfire ULTIME D MF 1050-50 WHE 2SL Manual

Installation Instructions and User Manual:
ULTIME D MF 1050-50 WHE 2SL
ULTIME D MF 1050-50 WHE 2SR
ULTIME D MF 1050-50 WHE 3S
Version: V01/201812
Language: English

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Dear customer,
We thank you for your confidence in the Metalfire fireplace that you have purchased. Our
products guarantee many years of heating comfort.
This Metalfire fireplace is the result of careful research and development, years of
experience in the wood fireplace market and intensive contact with dealers and customers.
Metalfire offers you quality, durability and design that complies with today’s strict ecological
requirements.
We wish you a pleasant fireside experience.
Happy heating,
The Metalfire team

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1Table of contents
1 Table of contents............................................................................................................................. 5
2 Introduction..................................................................................................................................... 7
3 Safety............................................................................................................................................... 7
3.1 Safety instructions for the installer......................................................................................... 7
3.2 Safety instructions for the user............................................................................................... 8
4 Technical specifications................................................................................................................... 9
5 Description of fireplace ................................................................................................................. 10
6 Flue pipe ........................................................................................................................................ 11
7 Combustion air supply................................................................................................................... 12
7.1 Standard connection underneath/rear. Connection diameter 2x 150 mm. ......................... 12
7.2 Connection requiring air from the room (combustion air from outside): ............................ 12
7.3 Connection requiring air from the room (combustion air supply from outside):................. 12
8 Convection air connection............................................................................................................. 13
9 Fireplace surround and connections............................................................................................. 15
9.1 Installation examples............................................................................................................. 15
10 Smoke deflection plates ............................................................................................................ 18
10.1 Removing the smoke deflection plates................................................................................. 19
11 Regulating the combustion air supply....................................................................................... 21
12 Opening and cleaning the door................................................................................................. 22
12.1 Opening and closing the lifting door ..................................................................................... 22
12.2 Cleaning the door .................................................................................................................. 23
13 Basic test for the fireplace......................................................................................................... 24
13.1 Checks to be carried out........................................................................................................ 24
14 Fuel ............................................................................................................................................ 25
15 How to correctly start the fire................................................................................................... 26
15.1 Particulate matter ................................................................................................................. 26
15.2 Lighting the fire ..................................................................................................................... 27
15.3 Adding new wood.................................................................................................................. 28
15.4 Burning with closed or open lifting door............................................................................... 29
16 Maintenance.............................................................................................................................. 30
16.1 Cleaning the glass.................................................................................................................. 30
16.2 General maintenance ............................................................................................................ 30
17 Malfunctions.............................................................................................................................. 31
17.1 The glass is getting dirty quickly............................................................................................ 31
17.2 Backdraught........................................................................................................................... 31

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17.3 Fire is not responding to air regulator................................................................................... 31
17.4 Broken glass in the door........................................................................................................ 31
17.5 Other damaged components ................................................................................................ 31
17.6 Unpleasant odours ................................................................................................................ 31
17.7 What do in the event of a chimney fire................................................................................. 31
18 Guarantee clause....................................................................................................................... 32
18.1 Guarantee period .................................................................................................................. 32
18.2 Exclusion................................................................................................................................ 32
18.3 Proviso................................................................................................................................... 32

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2Introduction
Please read this manual carefully before using the fireplace for the first time.
These appliances are closed wood fireplaces which must be connected to an individual flue pipe. Flue
gases are discharged through this flue pipe. The supply of outdoor air for combustion can be
connected directly to the base of the appliance. This allows these appliances to function
independently of air in the room.
3Safety
This appliance has been tested according to EN 13229-2001 and EN 13229-A2:2004 standards.
3.1 Safety instructions for the installer
THE INSTALLATION OF THIS WOOD FIREPLACE MAY ONLY BE CARRIED OUT BY A
RECOGNISED INSTALLER, IN ACCORDANCE WITH APPLICABLE NATIONAL
AND/OR LOCAL STANDARDS AND BUILDING REGULATIONS.
IT IS IMPORTANT THAT THE FLUE GAS PIPE AND THE FRESH AIR SUPPLY PIPE OF
THIS WOOD FIREPLACE ARE ONLY CONNECTED BY A QUALIFIED INSTALLER, IN
ACCORDANCE WITH NATIONAL AND LOCAL REGULATIONS.
Take the necessary precautions so that items in the immediate vicinity of the appliance are not
overheated. This means using incombustible materials for items such as the curtains, floor and walls.
The installer must take all measures required to prevent overheating of adjacent materials. These
measures must comply with national and/or local standards and regulations and the installation must
meet all (national and European) standards. Take the necessary measures by using fireproof and
insulating materials to prevent overheating of flammable materials in the vicinity of the fireplace. See
Table 1 on p.9 for the minimum insulation thicknesses.

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3.2 Safety instructions for the user
THIS WOOD FIREPLACE IS ONLY INTENDED FOR ADDITIONAL HEATING.
THESE WOOD FIREPLACES RADIATE SIGNIFICANT LEVELS OF HEAT. THE ENTIRE
OUTSIDE OF THE FIREPLACE BECOMES EXTREMELY HOT!
Ensure that young children and older people always keep sufficient distance from the fireplace so
that they cannot come into contact with it, and provide a fireplace guard around the fireplace if
necessary. Never let children operate the fireplace.
Make sure that flammable materials (wooden mantels, curtains, flammable liquids, furniture and so
on) are always separated from the fireplace by at least 80 cm both above and around it.
THE HEAT RADIATION THROUGH THE FIREPLACE WINDOW CAN BE
CONSIDERABLE. THEREFORE, A DISTANCE OF AT LEAST 80 CM MUST BE KEPT
FROM FLAMMABLE MATERIAL
All visible parts of the fireplace should be considered as active heating surfaces and should not be
touched when the fireplace is in use. Touching these parts constitutes a risk of burns.
DO NOT USE THE APPLIANCE IF THE GLASS IN THE DOOR IS CRACKED OR
BROKEN.
If defective, the glass in the door must be replaced immediately by a competent Metalfire installer.

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4Technical specifications
Table 1
Model
ULTIME D MF 1050-50 WHE 2SL
ULTIME D MF 1050-50 WHE 2SR
ULTIME D MF 1050-50 WHE 3S
Fuel
Logs (beech)
Nominal heat output (kW)
17
Efficiency (%)
82
Wood consumption rate/hour (max. 15%
humidity) (Kg)
3.50
Max. wood consumption limit/hour
Max. 3 pieces measuring 33 cm in length
Max. flue gas temperature with a closed door (°C)
250
Max. flue gas temperature with an open door (°C)
290
CO at 13% O2 (%)
0.087
Dust content at 13% O2(mg/Nm³)
27
NOxemissions at 13% O2(mg/Nm³)
52
Mass flow rate of flue gasses (g/s)
12.39
Min. chimney draught (Pa)
12
*Min. insulation thickness top (cm)
2.50
*Min. insulation thickness rear (cm)
2.50
*Min. insulation thickness sides (cm)
2.50
*Min. insulation thickness front (cm)
2.50
*Min. insulation thickness bottom (cm)
Only non-flammable material
Distance from insulation to fireplace (cm)
1.30
Chimney connection (mm)
Ø250
Combustion air connector (mm)
2 x Ø150 (2 x ±180cm²)
Convection connector inlet (mm)
4 x Ø150 (4 x ±180cm²)
Convection connector outlet (mm)
4 x Ø150 (4 x ±180cm²)
Weight including interior (kg)
320
*Insulation panels: SILCA T300
Thermal Conductivity: (W/mK)
200°C 0.09
400°C 0.10
500°C 0.13
800°C 0.19
(Values are only valid with 4 convection openings
at the top of the appliance)

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5Description of fireplace
1. Flue gas pipe
2. Combustion air supply (2x)
3. Convection air outlet (4x)
4. Convection air inlet (4x)
5. Air regulator
6. Door lifting stub
7. Door tool
8. Door latch
9. Connector flange for combustion
air
10. Connector flange for convection air
5
8
6
2
4
7
9
10
3
1

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6Flue pipe
- The flue pipe must be at least 5 metres in height. This height is measured from where it
connects to the fireplace. The flue pipe must have a minimum draught of 12 Pascal.
- The channel must be thermally insulated to avoid condensation and to achieve a better
draught.
- Changes in direction may be 45° maximum and there may only be two changes in direction.
- The flue pipe must be vertical for at least 1 metre before it changes direction.
- This fireplace must be connected to one individual flue pipe.
- A rain cap must be fitted to prevent moisture from entering the hearth.
- Do not install a flue pipe with a diameter wider than the one provided for the fireplace.
- The outlet and position of the chimney on the roof surface and compared to adjacent
buildings can only be installed according to local building standards. Take factors in the
surroundings into account (trees, blocks of flats and so on).
- See Table 2 on p.11 for the flue pipe dimensions. If the connection is shortened, 1 metre
extra must be calculated for the length of the flue pipe. For each 45° change of direction, 1
vertical metre extra must be calculated.
- Using a flue pipe diameter which is too narrow is at the installer’s risk. Also, smoke may blow
back into the room when the door is opened.
- If there are several flue pipes or ventilation shafts in the surround space, only one flue pipe
may be connected to the fireplace and the remaining channels must be sealed.
Table 2
ULTIME D
300
250
200
Outdoor air
MF 1050-50 WHE 2SL
x
>=4
>=5
2x Ø150
MF 1050-50 WHE 2SR
x
>=4
>=5
2x Ø150
MF 1050-50 WHE 3S
x
>=4
>=5
2x Ø150
The minimum heights indicated are for ideal conditions. A longer length may be required, depending
on the conditions. The installer must check this when testing the fireplace.
Flue pipe mounting on fireplace
CO
RR
EC
T
INC
ORR
ECT

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7Combustion air supply
The combustion process requires air supply. This supply can be achieved as follows.
7.1 Standard connection underneath/rear. Connection diameter 2x 150 mm.
7.2 Connection requiring air from the room (combustion air from outside):
When the door is closed, the fireplace is sealed off from the inside area and must therefore be
connected to the outdoor air so that the combustion process can take place. This can be done via an
outside wall, ventilated cellar or via a ventilation shaft. The direct air supply can be connected to the
fireplace via the bottom or the rear of the fireplace.
The connection diameter is 2x 150 mm. The net cross-sectional area for the air supply must therefore
be at least 360 cm².
This air connection principle ensures that air from the room is not used for combustion. If the
connection is made via the bottom of the fireplace, then the rear connection must be sealed. If it is
made via the rear, then the bottom connection must be sealed. To this end, 2 caps and 2 connector
flanges are supplied with the appliance.
7.3 Connection requiring air from the room (combustion air supply from outside):
If the combustion air cannot be connected directly to the fireplace, the installer must ensure that
there is an alternative air supply in the room where the fireplace is located. The air supply opening
must be at least 360 cm². This air supply should preferably flow into the bottom of the fireplace
surround. Make sure that the air supply can be closed off when the fireplace is not in use.

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8Convection air connection
The fireplace needs a convection system. To this end, a metal casing is mounted around the hearth
frame. This is the convection mantle. The air in the room passes underneath the convection mantle
and returns along the upper surface where it is heated, and then returns into the room.
There are Ø150mm connection openings on both sides as well as on the back to connect the supply
of air in the room. There is also a free space of 50 mm at the bottom of the appliance through which
the air in the room can be channelled.
At least 4 connection openings for the convection air must be cleared at the bottom of the hearth.
Ensure that this is done symmetrically.
The pre-cut Ø150 mm plates can be removed by tapping them. The connector flanges can then be
mounted on the convection mantle using self-tapping screws.
Rear suction connection for convection air (4x)
Top outlet
connection for
convection air

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There are 4 connections on the top of the fireplace for conducting the heated convection air back
into the room. At least 4 connections must be used. Always ensure that the same number of outflow
openings are connected on either side of the flue pipe. If not, the convection air flow may not be
balanced. If the flexible connectors vary too much in length, this may also lead to imbalance in the
convection flow.
All openings and grates at the top or bottom of the fireplace surround must be in the same room
(have the same air pressure) so that there is a natural flow of air in the room. When assembling the
appliance, make sure that the grates and openings are always open.
Passageways for convection air in fireplace surround
Appliance
1050-50 WHE 2SL
1050-50 WHE 2SR
1050-50 WHE 3S
Minimum intake of air
to convection mantle
700 cm²
700 cm²
700 cm²
Minimum outflow air
in fireplace
convection mantle
700 cm²
700 cm²
700 cm²
If the requirements for the convection connector/openings are not adhered to, this can lead to
overheating and damage to the fireplace. If there is a grate, the net throughput (throughput
coefficient) must be taken into account.
Keep a minimum distance of 30 cm between the outflow grates/openings and flammable materials
and the ceiling.
If the dimensions of the air flow openings are too narrow, this can lead to the outflowing convection
air temperatures being too high and this may in turn be accompanied by unpleasant odours and
discolouration.
The connector flanges for the convection air flexible
connectors are mounted to the convection mantle
using self-tapping screws.

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9Fireplace surround and connections
The fireplace surround and finish must be made from incombustible and heat-resistant material.
Brickwork and plastering must not be in direct contact with the fireplace or the optional mantelpiece;
there must always be a gap of at least 3 mm between them. This is to allow for the fireplace to
expand without damaging it.
Make sure that flammable materials (wooden mantels, curtains, flammable liquids, furniture and so
on) are always separated from the fireplace by at least 80 cm both above and around it.
Ensure that the inside of the surround is completely dust free before closing the surrounds. This will
prevent dust particles from entering the convection air.
The surface should be strong enough to bear the weight of the fireplace. If the existing construction
is not sufficient for bearing the weight, appropriate measures must be taken in order to distribute
the weight of the fireplace (see Table 1 on p.9 for the weight of the fireplace).
Ensure the necessary insulation of the required thickness is placed between the fireplace and
flammable materials (see Table 1 on p.9).
9.1 Installation examples
Combustion air
supply from outside
Combustion air supply from outside the room
The combustion air that comes from outside is
connected directly to the fireplace.
The air supply from the room to the convection
mantle is connected underneath via flexible
connectors. The heated convection air in the room
returns to the room via the flexible connectors
which are connected at the top. The combustion air
supply is completely separated from the convection
air.
The supply of room air also takes care of the
ventilation of the installation space. This is the
preferred configuration.
Flue gas
discharge
Heated
air in the room
Room air to
convection mantle
Room air for ventilation
of installation space

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Flue gas
discharge
Combustion air
supply from the
room
Room air to
convection
mantle
Room air for
ventilation of
installation
space
Heated
air in the room
Combustion air supply from outside the room
The combustion air that comes from outside is
connected directly to the fireplace.
The air supply from the room enters the fireplace
from underneath the surround. The Ø360 mm
connection openings at the bottom of the sides/rear
wall must be opened so that the air in the room can
flow into the convection mantle. No flexible
connectors are connected at the bottom.
The heated convection air in the room returns to the
room via the flexible connectors which are connected
at the top. The combustion air supply is completely
separated from the convection air.
Combustion air
supply from
outside
Room air to
surround space
Heated
air in the room
Flue gas
discharge
Combustion air supply from inside the room
Combustion air taken from the room is best
compensated by an air inlet in the vicinity of the
fireplace. This inlet should be at least 360 cm². The
throughput coefficient must be taken into account if a
grate is used.
E.g. If the coeff. is 0.6, then the grate should be at least
600 cm².
Connecting the combustion air to the fireplace can be
effected using two Ø150 mm flexible connectors.
If the air supply cannot be taken from close to fireplace,
the air supply must be drawn via ventilation grates
installed elsewhere (e.g. through an upper window or the
wall facade).
Ensure that a closable air vent is used, so that cold air
does not flow into the room when the fireplace is not in
use.
The air supply from the room to the convection mantle is
connected underneath via flexible connectors. The
heated convection air in the room returns to the room
via the flexible connectors which are connected at the
top.
The supply of room air also takes care of the ventilation
of the installation space.

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Closable air supply vents with cable controls can be purchased from Metalfire.
Safety zone from flammable materials
Appliance without convection mantle
The combustion air supply must be installed as
depicted in the sketches shown previously.
The air supply from the room enters the fireplace via
opening(s) at the bottom of the surround.
The heated air in the room flows through the
opening(s) at the top of the surround back into the
room. The air supply opening at the bottom and top
must both be at least 700 cm². If there is a grate, the
net throughput (throughput coefficient) must be
taken into account. The openings at the top must be
30 cm lower than the ceiling.
Combustion air
supply from
outside
Flue gas
discharge
Heated
air in the
room
Room air to
fireplace surround
The heat radiation through the fireplace
window can be considerable. Therefore,
a distance of at least 80 cm must be
kept from flammable material.

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10 Smoke deflection plates
When the door is closed, valve A and C are also closed. This optimises the combustion and efficiency.
When the door is opened, for example to add new wood, valves A and C will also open so as to
prevent any backdraught into the room. As a result, efficiency is minimal when the door is open.
Depending on the construction of the flue pipe, there may be less of a draw in the chimney in some
cases. This can lead to backdraught into the room when the door is open. If this is the case, plate B
can be taken out of the appliance to prevent backdraught due to a poorly functioning chimney.
Door closed
Door open
Flue gasses
Flue gasses
C
C
B
B
A
A

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10.1 Removing the smoke deflection plates
Smoke deflection plates A and B can be removed to facilitate the cleaning of the chimney.
1
2
3
4
A
B

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A
B
Remove screw M5 using
Allen key no. 4