HotHouse HH18Bi, HD18Bi Installation And Operating Instructions Manual

HH18Bi

HD18Bi

High Output

Insert Boiler Stove

Please fix label with serial number and stove

type here before putting manual into stove

Installation and Operating

Instructions

Please hand these instructions to the stove user when the installation is complete. Leave the stove ready for
operation and instruct the user in the correct use of the appliance and operation of controls.

Important: – This product must be installed by a suitably qualified installer.

Hothouse Inspired Products.

Imperial Point

Express Trading Estate,

Stonehill Road,

Farnworth,

Bolton BL4 9TN

www.hothouseproducts.co.uk

PLEASE READ ALL THESE INSTRUCTIONS CAREFULLY!

For safety reasons it is essential that your stove is correctly installed and operated. Hothouse cannot
accept responsibility for any fault or consequential problems arising through incorrect installation or
operation.

1 HH18Bi 22/04/13

TABLE OF CONTENTS

Section Page No

1. List of Components 2

2. Component Identification and Installation 2

3. Installation Instructions 3

Warnings and important safety information 3

4 Installation Information 5

Chimney 5
Ventilation 5
Flue Draught 5

Connection to Chimney 5
Material Clearances 5
Hearths 6

Commissioning & Handover 6

5. Technical Data 6

6. Plumbing 7

7. Operating Instructions 10

Air controls 10

Cleaning 11

Fuels 13

Notes on Wood Burning 13

Notes on Burning Solid Fuel 13

Re-fuelling 13

Refuelling onto a Low Firebed 14

Fuel Overloading 14

Shutting down 14

Maintenance 14

Seasonal Use 14

Replacing Door Rope and Glass 15

7. Safety Notes for your Guidance 16

8. Stove Dimensions 17

9. Frequently Asked Questions 18

10. HD18Bi Spare Parts List & Codes 19

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List of Components

1. Component Identification and Installation

Your Hothouse Stove is shipped securely packed and strapped. Carefully remove any straps and
remove all wood, cardboard and any plastic packaging, open the door and remove all the contents.
See List of Components section and check contents carefully.

To remove the lower baffle plate, carefully lift it off the two back brackets and remove through the front
door. Access can now be gained the upper baffle which can be removed in a similar manner. Note the
orientation of both baffles before removal. Access to the chimney through the front door of the stove is
now possible.

Now proceed to install the stove according to these instructions and current installation standards or HETAS
advice. The internal parts of the stove can be re-assembled as the reverse of the previous removal
instructions.

Fig 2 – Insert Boiler Stove Assembly and controls

Description of Parts Qty

Stove Assembly 1
Tool 1
Ash Pan 1
Thermostat Knob 1
Stove Operating Glove 1
Touch up paint 1
Installation & Operating Instructions 1
Warranty Card 1
Fig 1 – Stove Tool

Slot to Operate
Riddle Grate

Lift ashpan with
This end

Use this end to operate
Secondary air control

3 HH18Bi 22/04/13

3 Installation Instructions

WARNINGS AND IMPORTANT SAFETY INFORMATION

READ THESE INSTRUCTIONS CAREFULLY BEFORE INSTALLATION!

These instructions cover the basic principles to ensure satisfactory installation of the stove, although detail may need slight
modification to suit particular local site conditions. In all cases the installation must comply with current local regulations
including Building Regulations, Local Authority Byelaws and other specifications or regulations including Ireland, UK or
EU standards referred to as they affect the installation of the stove. Approved Document J is particularly important for
England and Wales and can be downloaded for no cost at:

http://www.planningportal.gov.uk/england/professionals/en/4000000000503.html Also of importance are Approved

documents L1 A and B conservation of fuel and power. The Domestic Heating Compliance Guide will also be found useful.

Important Chimney Warning
This stove must not be installed into a chimney that serves any other heating appliance.

Extractor Fan Warning

There must not be an extractor fan fitted in the same room as the stove as this can cause the stove to emit
fumes into the room.

Cleaning and Chimney Sweeping
The appliance, flue & chimney must be cleaned and checked internally and externally regularly in use
and especially after a period on disuse (e.g. after summer). Lift down the baffle at least weekly to check

for build up of soot or debris on the top from the flue pipe. Remove the baffle and check the flue spigot and
connector is fully clear at regular intervals. The chimney and flue connector must be swept at least annually,
more often when used with sooty fuels or damp wood. Any loose, broken or leaking joints or flue ways
MUST be repaired immediately.

Fuels

Only use recommended fuels. The appliance can be damaged by burning pallets or treated wood, petroleum
coke, anthracite, liquid fuels or general rubbish and this will invalidate your warranty and risk your personal
safety. The appliance must not be used as a rubbish incinerator. Any coal type fuel that is used must be
suitable for a closed appliance. Arigna Ecobrite or similar would be a recommended fuel.

Maintenance

Annual checking and servicing of the appliance and flue by a competent engineer is recommended.

Ventilation

Adequate ventilation is ESSENTIAL for the safe and efficient operation of any solid fuel or wood burning
appliance. Ventilation MUST be provided where required by the stove output or flue under-performance.
Keep all ventilation clear and free of blockage.

External Ducted Air

This appliance is suitable to accept ducted external air which should be provided in accordance with best
practices and minimum distances to combustibles should be adhered to. It is recommended that a 4” plastic
pipe is used to bring the air in from outside. It is recommended to run the air vent from opposite poles of the
dwelling and tee off for the air supply to the stove. An aluminium duct should be used to connect from the
4” pipe to the stove. The inlet pipe should be suitable located to prevent ingress of moisture and where it

4 HH18Bi 22/04/13

will not get block by leaves of other items. Ensure vent caps are fitted where the vent pipe meets the external
wall to prevent the entry of rodents.

Health And Safety Precautions

Handling

Adequate facilities must be available for unloading and site handling. Hothouse Stoves are very heavily built
so always ask for assistance when lifting and siting the stoves.

Fire Cement

Some types of fire cement are caustic and should not be allowed to come into contact with the skin. In case
of skin contact, wash immediately with plenty of water.

Asbestos

This stove contains no asbestos. If there is a possibility of disturbing any asbestos in the course of
installation then please seek specialist guidance and use appropriate protective equipment.

Metal Parts

When installing or servicing this stove, proper care should be taken to avoid the possibility of personal
injury.

5 HH18Bi 22/04/13

4.0 Installation Information

Chimney

The chimney height and the position of the chimney terminal should conform to Building Regulations.
Minimum chimney height is 4.5m. Check that the chimney is in good condition, dry, free from cracks and
obstructions. The diameter of the flue should not be less than 150mm and not more than 200mm. If any of
these requirements are not met, the chimney should be lined by a suitable method. The chimney must be
swept before connection to the stove.

Where the chimney is believed to have previously served an open fire installation, it is possible that the
higher flue gas temperature from the stove may loosen deposits that were previously firmly adhered, with
the consequent risk of flue blockage. It is therefore recommended that the chimney be swept a second time
within a month of regular use after installation.
If you have any doubts about the suitability of your chimney, consult your local dealer/stockist or chimney
specialist. If there is no existing chimney then either a solid fuel compatible prefabricated block chimney or
a twin-walled insulated stainless steel flue to BS 4543 can be used. These chimneys must be fitted in
accordance with the manufacturer’s instructions and Building Regulations.

Ventilation

No purpose provided ventilation is required for stoves rated under 5KW. For each KW above 5KW, 550 sq
mm of fixed ventilation is required – i.e. a stove rated at 8KW would require 3 x 550 sq mm = 1650 sq mm
of fixed ventilation. If more than one appliance is installed in the same room, the ventilation requirements
for each appliance must be added together.

Flue Draught

A flue draught of minimum 1.2mm to a maximum 2.5mm water gauge (12 to 25 Pascals) is required for
satisfactory appliance performance. The flue draught should be checked under fire at high output and, if it
exceeds the recommended maximum, a draught stabiliser must be fitted so that the rate of burning can be
controlled to prevent over-firing.

Connection to the Chimney
This appliance is not suitable for use in a shared flue. This appliance requires a direct flue connection to the
spigot. It is essential that all connections between the stove and chimney-flue are sealed and made airtight
with sealing rope, clamping rings and/or fire cement or heat resisting cement where required.

Both the chimney and flue pipe must be accessible for cleaning and if ANY parts of the chimney cannot be
reached through the stove (with baffle removed), a soot door must be fitted in a suitable position to enable
this to be done.

In adverse weather conditions, downdrafts may occur causing smoke or fumes to spill into the room. If this
occurs the appliance should be shut down as much as possible by closing the air controls and the room
should be ventilated to clear the fumes. If the problem persists seek the advice of a chimney sweep.

Material Clearances

Safety Distances from Combustible Surfaces:
Model Side Shelf

HH18Bi 100mm 300mm
In addition it is strongly recommended that any furniture or other combustible materials are kept at least
900mm clear from the front of the stove.

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Distances from NON-combustible materials:

To conform with building regulations the fireplace recess walls should be at least 200mm thick or each rear
leaf at least 100mm thick in the case of a cavity wall at the rear. If these dimensions are not met further
protection for any combustible materials must be provided. The walls of the fireplace recess and the hearth
must be made of non-combustible material.

Hearths:

Hothouse stoves require a 125mm thick non-combustible constructional hearth beneath them to protect the
building, this can include any solid non-combustible floor. A non-combustible superimposed hearth forming
an apron of at least 225mm at the front of the stove and 150mm on either side must also be provided. The
superimposed hearth must not be less than 12mm thick and must have a clearly defined edge (change of
level) to discourage placing of any combustible materials on or partially over it.

The appliance shall be installed on a floor with adequate load-bearing capacity. If the existing construction
does not meet this requirement, suitable measures (e.g. load distributing plate) should be provided to achieve
it.

Commissioning and Handover

Upon completion of the installation, allow a suitable period of time for any fire cement and mortar to dry
out. A small fire may then be lit and checked to ensure the smoke and fumes are taken from the stove up the
chimney and emitted safely to atmosphere.

Advise the customer not to run the stove at full output for at 3 – 4 days. Explain that the stoves can provide
much more or less than their rated heat outputs depending upon how they are burnt and fuels and fuel loads
used.

On completion of the installation and commissioning, ensure that the operating instructions and operating
tools (including glove) for the stove are left with the customer. You must be sure to advise the customer on
the correct use of the appliance with the fuels likely to be used on the stove and warn them to use only the
recommended fuels for the stove.

Advise the user on what to do should smoke or fumes be emitted into the room from the stove – see Safety
Notes section. The user should be warned that they MUST use a suitable fireguard in the presence of
children, aged and/or infirm persons.

5.0 Technical Data

Technical Specifications

Wood

Coal

Nominal Heat Output

kW

12.2

17.7

Nominal Heat to Water

kW

7.6

12.1

Nominal Heat to Room

kW

4.6

5.6

Efficiency

%

77.6

80.1

CO Emission (@13% O2)

%

0.6

0.2

Flue Gas Temp (avg. at nominal output)

°C

300

277

Refuel Period

hr

1.0

1.0

Flue Outlet Size

mm

153

153

Product Weight - Net

kg

150

150

Maximum Log Length

mm

310

N/A