Precision HF357i-B Instruction Manual Download Page 29

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is seasoned and dry, then burning the stove at very 
high temperature for a short period after a long slow 
burn will usually burn off any sooty deposits. Glass 
can be cleaned easily if it is undertaken regularly and 
the deposits are not allowed to build up. A proprietary 
stove glass spray or gel is strongly recommended.

CONDENSATION IN THE FIRE CHAMBER

You may see moisture droplets on parts of the boiler 
or experience damp ash when the stove is cold or 
after the stove has been used.

• Causes: Atmospheric conditions 

It is not unusual 

for condensation to form on a cooling boiler or 
pipework under certain atmospheric conditions. 
Such condensation should not be confused with a 
boiler leak. In the unlikely event of a boiler leak a 
profuse amount of water, which is usually hard to 
stem, will occur. This is significantly different from 
condensation which can be easily dried out with a 
sponge or tissue or by re-lighting the stove. After the 
fire has gone out, open all the air controls and leave 
the stove door slightly open, as this can sometimes 
help. Please refer to our boiler Warranty terms and 
conditions on pages 25 and 32 if you suspect a leak. 

CENTRAL HEATING SYSTEM NOT PROVIDING  
ENOUGH HEAT OR HOT WATER

If you have ensured that the stove is functioning  
properly ie that it has vibrant yellow flames and is 
providing heat to the room, but still not delivering  
sufficient heat through the central heating radiators or 
hot water then it is more than likely to be a problem 
with the system. The simplest way to determine this 
is, if possible, to check that the top water pipe from 
the stove is hot and that the lower pipe is cooler. If 
this is the case then this indicates that there is a  
problem with the system and not the stove. 

• Causes: Circulation pump or thermostatic  
valve failure 

A fault in one of the system’s key  

components could restrict the system flow thus  
limiting heat to the radiators and / or hot water  
cylinder. For example, a thermostatic valve may have 
been activated due to a potential temperature  
anomaly or have stuck in the wrong position.  
Identifying the precise problem is a job best left to  
the original installer or heating engineer.
• 

Causes: Unbalanced central heating system

 

With all multi fuel boiler stoves, given their particular 
heat cycle and the natural gravity fed flow, it is  
extremely important that the radiators are balanced to 
ensure an efficient distribution of heat as well as an 
even heat balance from one radiator to the next.  
If you have linked your new boiler stove to an existing 
or old system then it is likely that the system needs  
re-balancing to work in conjunction with your stove. 
See page 26

• 

Causes: ‘Sludge’ in radiators

 

If you have linked your new boiler stove to an old 
central heating system and you have bled (and / or 
balanced) your radiators and there is still a lack of 
heat then the chances are that your radiators will be 
full of sludge. This is a thick black sediment which 
inhibits the flow of hot water. Your system will need 
flushing with the appropriate chemical agent. This can 
be a time-consuming and messy job and is best left to 
a plumber or heating engineer. 

Summary of Contents for HF357i-B

Page 1: ...t operation You will need to refer to the serial number of your stove should you ever need to make a claim under the Horse Flame Warranty You will nd the serial number beginning with HF on the CE plat...

Page 2: ......

Page 3: ...herefore some of the stove photographs and diagrams used which are used for guidance purposes only may differ slightly from your new Precision Inset Boiler stove However the principles illustrated her...

Page 4: ...IONS 4 Vertical view L H Side view Vertical view L H Side view Vertical view L H Side view All sizes in mm Vertical view L H Side view Vertical view L H Side view Vertical view Vertical view L H Side...

Page 5: ...ominal Heat Output To Room 4 8 kW To Water 7 5 kW TOTAL 12 3 kW Ef ciency net 80 2 Mean CO Emission at 13 0 52 Mean Flue Gas Temperature 296 C Flue Gas Mass Flow 7 0 g s MINERAL FUELS Ancit Continuous...

Page 6: ...e stove when it is in use Check and clean the stove s ue way and the top of the baf e plate regularly to help avoid potential blockages Clean your chimney regularly BOILER STOVE SYSTEMS SPECIFIC SAFET...

Page 7: ...he Government to approve solid fuel domestic heating appliances and the registration of competent installers HETAS registered installers in England and Wales can self certi cate their work thus avoidi...

Page 8: ...e found here www smokecontrol defra gov uk Your local authority is responsible for implementing the Clean Air Act 1993 including designation and supervision of Smoke Control Areas and you can contact...

Page 9: ...and the access to the ue way to avoid potential soot build up and blockages Once you know how to do this it is a very easy operation See page 10 Flue spigot plate To maximise ef ciency and safety the...

Page 10: ...shes To back of stove 3 Carefully remove from the re chamber 2 Drop down at angle 1 Push upwards and pull forward such as porous stonework tile grout or carpets as there will inevitably be some sooty...

Page 11: ...and chimney Unpleasant smoky smells both inside and sometimes outside the house In the event of a problem with your stove always check your choice of fuel rst Manufactured or nished wood products such...

Page 12: ...ntrol the different types of combustion air that wood and mineral fuels need Your new stove can burn very well or very poorly depending on how you light the re how you refuel the re and of course the...

Page 13: ...ds placed against the boiler sides restrict combustion and can create unwanted cold spots in both the log and the water As the end grain of the wood produces more of the remaining moisture and gases w...

Page 14: ...ckly set Wood burns best if the ames have other wood to play off For example a single dense piece of wood or log will not burn as well as 2 or 3 smaller logs of equivalent mass The more contact the wo...

Page 15: ...s 1 Boiler stoves operate at a much lower temperature than non boiler stoves and consequently the potential to create soot or creosote build up in the ue system is also much greater especially when op...

Page 16: ...nd the burn rate of the mineral fuel load and therefore the heat into the room To do this ensure the Primary and Secondary Air is fully closed Then simply control the ame pattern and burn rate with th...

Page 17: ...building regulations it is also a requirement of your Warranty that the stove is installed by a competent person such as a Hetas or INFO registered installer who will be fully aware of any building a...

Page 18: ...udes the edge of the ash lip As a general rule it is best to extend the hearth to at least 75mm 3 beyond the furthest out swing of the stove door if possible to avoid any potential live ash held on th...

Page 19: ...e stoves create ue gases at a much greater temperature than those produced by an open re or gas appliance it does not necessarily follow that your chimney will function adequately or safely when your...

Page 20: ...r to possess a knowledge and understanding which will be beyond the provisions and intentions of these general installation and operating guidelines The United Kingdom s Solid Fuel Association through...

Page 21: ...21...

Page 22: ...addition the hot water cylinder and heat leak radiator should be positioned as near to vertically above the boiler stove as possible and with suf cient height to encourage the natural ow Any horizonta...

Page 23: ...the stove but also help avoid the potential build up of combustible soot along the sides this is an especially important requirement if you are not using a ue liner Some installations may require you...

Page 24: ...the stove to the replace see below Carefully position the stove within the replace opening and mark the two holes on to the replace front Remove the stove and carefully drill the holes using the appr...

Page 25: ...25 6 Legal Requirements Explain the householder s legal requirement to use an approved reguard when ever children or the elderly and the in rm are likely to be in the vicinity of the stove If the ins...

Page 26: ...w it is extremely important that the radiators are balanced to ensure an ef cient distribution of heat as well as an even heat balance from one radiator to the next The idea is to reduce the ow to the...

Page 27: ...or ue itself also needs cleaning Causes Inadequate supply of combustion air Check that any permanent air vent tted to supply the extra combustion air required for the stove has not been accidentally...

Page 28: ...blackening of the glass should be considered a trade off In this instance if you re sure that the fuel from the stove they should only ever be speci ed tted and subsequently tested by an approved ins...

Page 29: ...ikely to be a problem with the system The simplest way to determine this is if possible to check that the top water pipe from the stove is hot and that the lower pipe is cooler If this is the case the...

Page 30: ...staining to build up as it will become more dif cult to remove after each ring When used regularly a proprietary scratch resistant stove glass cleaning gel or spray which can be supplied by your stove...

Page 31: ...oprietary heat resistant re rope glue to secure the rope and glue both ends to ensure a well sealed joint The recommended rope seal diameter is 12mm Air ow through stove The heat from your inset stove...

Page 32: ...be free from defective parts materials and workmanship at the time of purchase by the original consumer for a period of 1 year for components parts and labour excluding consumable parts and 5 years fo...

Page 33: ...l parts for wear or damage and replace as necessary Re t all the internal parts Stove Glass Check the glass for chips or cracks and the glass seal condition and replace if necessary Thoroughly clean t...

Page 34: ...ES AND SETTINGS For future reference include a basic drawing of the system and notes on the circulation pump and system thermostat settings etc as well as their location and the location of the system...

Page 35: ......

Page 36: ...ne Holmes Chapel Cheshire CW4 8AF United Kingdom Precision Multi Fuel Stoves 2010 2011 2012 and 2014 All rights reserved Booklet contents may not be copied in whole or in part without the prior writte...

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