Haas+Sohn OVALIS GRANDE Handleiding

Haas+Sohn Heater OVALIS GRANDE

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General instructions for operation,

installation and maintenance

FIREPLACE STOVES

HAAS + SOHN Rukov s.r.o.

MANUFACTURER:

SNP 474, 408 01 RUMBURK, CZECH REPUBLIC

COMPANY ID: 62740989 TAX ID: CZ62740989

CONTENTS

1. TECHNICAL SPECIFICATIONS................................................................................................ 5

1.1. Heating concept ......................................................................................................................... 5

1.2. Construction design.................................................................................................................... 5

2. BURNING PROCESS ............................................................................................................... 6

2.1. Fuel volume and burning process adjustments .......................................................................... 6

2.2. Fuel .......................................................................................................................................... 7

3. SAFE OPERATION ................................................................................................................... 7

3.1. General requirements................................................................................................................. 7

3.2. Safe distance between the ﬁreplace stove and ﬂammable material........................................... 8

3.3. Safe distance between the smoke ﬂue and ﬂammable material................................................. 8

3.4. Directions for safe operation .....................................................................................................8

4. INSTALLATION AND CONNECTION TO THE CHIMNEY........................................................ 9

4.1. Connection to the chimney or chimney insert............................................................................. 9

4.2. Connection to the chimney vent ................................................................................................. 9

4.3. Directions for smoke ﬂue installation ......................................................................................... 9

4.4. Installation of the ﬁreplace stove within the room ...................................................................... 10

4.5. Cleaning the heating device and chimney ................................................................................. 10

4.6. Chimney ﬁre .............................................................................................................................. 10

4.7. External combustion air supply system ..................................................................................... 10

5. OPERATING INSTRUCTIONS .................................................................................................. 10

5.1. Before ﬁrst operation.................................................................................................................. 10

5.2. Setting the ﬁre............................................................................................................................ 11

5.3. Feeding the ﬁre .......................................................................................................................... 11

5.4. Glass cleanness......................................................................................................................... 11

5.5. Operation during temporary period and at worsened weather conditions .................................. 12

5.6. How to substitute the blind element by the exchanger............................................................... 12

5.7. Ash removal ............................................................................................................................... 12

6. CLEANING AND MAINTENANCE ............................................................................................ 12

6.1. Cleaning the heating device....................................................................................................... 12

6.2. Cleaning the ceramics and tiles ................................................................................................. 13

6.3. Sealing lines and tapes .............................................................................................................. 13

6.4. Spare parts................................................................................................................................. 13

7. WHAT TO DO IF...DO YOU DO IT YOURSELF?...................................................................... 13-14

8. FREQUENT PROBLEMS AND QUESTIONS ........................................................................... 14

8.1. Cracked (released) ﬁreclay (vermiculite) brick in the burning area............................................. 14

8.2. Broken glass .............................................................................................................................. 15

8.3. Partitions to control the chimney eﬀect....................................................................................... 15

8.4. Cracked side tile......................................................................................................................... 15

8.5. The blind element substituted by an exchanger (optional) ......................................................... 15

9. PRODUCT LIABILITY AND SERVICE...................................................................................... 16

9.1. General ...................................................................................................................................... 16

9.2. Conditions for guarantee............................................................................................................ 16

9.3. Guarantee and post-guarantee service...................................................................................... 16

9.4. Claim rejected ............................................................................................................................ 16

9.5. How to make a claim.................................................................................................................. 17

9.6. How to order spare parts............................................................................................................ 17

10. MISCELLANEOUS .................................................................................................................... 17

10.1. Accessories supplied with the insert........................................................................................... 17

10.2. Special accessories (on order)................................................................................................... 17

10.3. Recommended spare parts........................................................................................................ 17

10.4. Package and waste disposal...................................................................................................... 18

10.5. ES Declaration of Conformity and CE Certiﬁcate....................................................................... 18

10.6. HAAS+SOHN Rukov s.r.o Products and Manufacturing Programme........................................ 18

11. SUPPLEMENTS ........................................................................................................................ 19-21

JK 04 164 15 13 14 02 g

Congratulations! You have just bought the stove HAAS + SOHN, a top-quality product.

Thank you very much for your interest and purchase. Kindly read the Operating

Instructions to ﬁnd out comprehensive information about the function, correct use and

handling. We recommend you to read the instructions carefully in order to avoid any risk

related to likely damage. Proper operation and maintenance aﬀects the service life of the

product as well. In addition, proper operation and fuel supply is connected with fuel savings

and environment protection. Technical speciﬁcations are included in the manual.

The manufacturer provides guarantee providing you adhere to the directions and

recommendations in the instructions for operation and maintenance. Keep the operating

instructions and technical card safe to be able to refresh your knowledge at the beginning

of the new heating season.

1. TECHNICAL SPECIFICATIONS

The ﬁreplace stove is designed for heating in habitable rooms, recreational buildings, work

stations and other places to provide thermal comfort, while the visual eﬀect – the

perception connected with ﬂame – is similar to the sensation of live ﬁre.

1.1. Heating concept

The ﬁreplace stove is designed for burning wood, eco-fuel cakes and coal cakes (speciﬁc

types only) in a burning-through way, characteristic with very good ﬁring conditions.

The air within the room is heated thus the thermal comfort is provided by heat convection,

in part by heat radiation as well. This way, you can heat up even very cold, long-time

unheated rooms very quickly. The concept of heating by means of heat convection is based

on the fact that the air in the room enters the ﬁreplace stove at its bottom part, being heated

in the course of its way up inside the convection space consisting of a double shell of the

heating device. The air then ﬂows through the holes in the upper part of the ﬁreplace stove

back in the room. The radiation heat is generated by means of surface areas of the

ﬁreplace stove (metal, ceramics, glass). Due to the construction, the biggest radiation heat

source is the glass door.

1.2. Construction design

The ﬁreplace stove is welded of steel proﬁles, thickness 2-5 mm. In the middle of the

ﬁreplace stove, there is a ﬁring chamber that may be closed with a stocking door (equipped

with a self-acting element). The door is provided with special a large-area glass sheet,

thermal resistance up to 800 C. °

The inner space of the ﬁring chamber is usually lined with ﬁreclay brick shapes. The bricks

are not jointed with any ﬁller (the reason is a protection of the bricks against damage by

thermic dilatation). The upper part of the ﬁring chamber is equipped with partitions

designed for directing ﬂue gases into a smoke outlet. The partitions may be ﬁxed or

movable. Such movable partition may serve as a supporting holder for ﬁreclay bricks. At

the bottom part of the ﬁring chamber, a simple, ﬁxed cast grate is installed. Before the

grate, a barrier is usually provided, to prevent from burning pieces falling out or onto the

door (front glass). Under the grate, there is a space designed for ashpan. The remaining

space at the bottom part of the ﬁreplace stove may be used for spare fuel.

Fireplace stove casing is made of steel panels, ceramic tiles or lined of thick tiles. The

ﬁreplace stove steel construction is protected with special refractory paint.

Caution! The ﬁreplace stove is not designed for continuous heating but for

periodical – interrupted (i.e. temporary) operation.

4 5

2. FIRING PROCESS

2.1. Fuel quantity and ﬁring process adjustments

Burning wood, wood cakes (or coal cakes – optional) in the ﬁreplace stove is based on

burning through the fuel, which means that such ﬁring takes place throughout the whole go

of the fuel at a time. In order to provide optimal conditions for easy kindling and burning

up, you need enough air being led under the fuel in ﬁre, through the grate: this is the so-

called air, and it must be always adjustable. By increasing temperature of the fuel primary

burning through, certain gaseous components of the fuel evolve that – unless additional air

is supplied – would be of no avail in terms of heat energy: therefore, additional air must be

provided at the ﬂame level where the ﬁring process connected with those gaseous

components may continue. Now, at this stage, the primary air is – in fact – not necessary,

while air supply is required, or air may be added as well, respectively. secondary tertiary

The secondary air supply, usually adjustable, improves the ﬁring process and contributes to

the door glass self- cleaning. The tertiary air supply is designed for general improvement of

the ﬁring process and is usually ﬁxed (one cannot regulate it in any way). If the proportion

of the air volumes led into the particular sections of the ﬁring chamber is correct, the

burning eﬃciency is increased while emission of pollutants in the environment is reduced.

The layout of the air supply regulative elements is shown in the Technical Cart (a part of

the documentation supplied with the ﬁreplace stove).

Our models of ﬁreplace stove may reach up to 85% eﬃciency – which means top

performance.

The heating capacity of the heating device depends on the fuel quantity burnt per deﬁned

time, fuel quality and ﬁring process eﬃciency. Using the Chart 2 (heating values) may

help you to make a picture of attainable capacity: let’s assume that you burn 1 kg of

wood per hour, wood humidity is 20%. Further, with higher wood moisture its heating

capacity goes down.

In the testing room conditions, adjustability of the heating device was tested, within 30 –

100% of nominal performance. For the regulation, the chimney eﬀect and the fuel quantity

were applied. In practice, the heating capacity may be regulated by means of air supply

regulating elements (especially the primary air inlet). There is no simple and explicit way to

determine the ﬁring process adjustment by means of regulators. There are many aspects to

consider – fuel moisture, type of fuel, chimney eﬀect, exterior pressure conditions, etc.

Therefore, the ﬁring process (the ﬂame intensity and quality) should be re-adjusted for

particular conditions.

You will be able to adjust the ﬁring process to achieve best eﬃciency after a short time of

operation. A detailed chart showing how to adjust the air supply regulating elements is

included in the technical speciﬁcations. The ﬁgures in the chart are the testing results

veriﬁed by the State Testing Laboratory. The Chart 1 presents just general information for

air supply adjustment.

Primary air

Secondary air Tertiary air

Fuel

Fuel quantity

Adjustable

No adjustment

wooden logs

wood cakes

2 - 3 logs (approx. 2 – 3 kg)

2 - 4 logs (approx. 2 – 3 kg)

Open wide Fixed adjustment

at installation

coal cakes 2 - 3 logs (approx. 2 – 3 kg)

Closed or open

(depends on local

conditions)

half-open Fixed adjustment

at installation

Chart 1

Our tips for wood burning

Any time you set the ﬁre, let the primary air regulator open long enough to allow the fuel

burning properly.

Before you re-load, it is recommended to open the primary air regulator wide.

While burning wood, make sure the wood is dry, maximum moisture 20%.

Our tips for coal cake burning (selected models only)

• To achieve optimisation of the ﬁring process, load the cakes directly onto the grate

holes: this way, you support the burning in best possible way.

• Make sure you do not overload: for the heat capacity you may use, i.e. to maintain the

heat, a couple of cakes is enough: otherwise the device would suﬀer from excessive

heat. Coal cake fuel eﬃciency may reach 6 kWh/1 kg, i.e. by some 40% more

than wood!

2.2. Fuel

In ﬁreplace stoves, you may burn logs, wood cakes and coal cakes (some models only).

The moisture of the wood to be burnt should be lower than 20%, optimally 10%. The rule of

thumb is: the less water in the fuel, the higher heating capacity you achieve. For the

recommended wood moisture, you may reach it safely if you store the wood in a well

ventilated shelter for at least two years. The water content in coal cakes should be

speciﬁed by the manufacturer. The cakes should be stored in a dry room otherwise they

disintegrate. It is recommended to store the wood intended for burning in pieces approx. 3-

6 cm (diameter), 20–30 cm (length). It is forbidden to load and burn coal or charred

coal. In the fireplace, never burn ﬂammable liquids or waste. It is forbidden to burn

papering, chipboards, plastic materials, penetrated wood, wood shavings or saw dust.

Burning such materials not only is detrimental to the environment but shortens the service

life of the heating device as well: you might seriously damage the device or the chimney as

well.

Note: The bark, a part of wooden logs, is no issue at all.

Fuel eﬃciency: selected types of wood at moisture 20%

Wood Fuel eﬃciency

kWh/m3

Fuel eﬃciency

kWh/1 kg

Weight kg/(m3)

Spruce, ﬁr 1957 4,0 485

Larch 2461 4,0 610

Pine 2280 4,0 565

Oak, beech 2743 3,8 726

Chart 2

3. SAFE OPERATION

3.1. General requirements

While installing and operating stove (stove insert), it is obligatory to adhere to the ﬁre

prevention regulations (related to this type of devices) in force in the country of

installation.

6 7

Product specificaties

Merk:	Haas+Sohn
Categorie:	Heater
Model:	OVALIS GRANDE

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