FAQs

The vermiculite plates or bricks in my stove have cracked.
Should they be replaced?

Cracks in the bricks/vermiculite plates may happen due to bumps from the wood. There is no need to replace the bricks even though they are cracked. They do still insulate the fire chamber.

The purpose of the bricks is to insulate the fire chamber to increase the combustion temperature. However, if they start crumbling, the insulation disappears. This may damage the cast iron and they do in this case have to be replaced.

 

The sealing rope in the door is loose, or has come away.
What do I do?

The sealing rope in the door becomes worn after it has been in use for some time, and can start coming away.
The seal is fitted using Morsø ceramic adhesive.

When replacing the seal, the surface must be cleaned thoroughly with steel wool or a steel brush.
Seal kits with adhesive can be bought from your local Morsø Dealer. Ensure you use MORSO sealing rope.

 

How do I remove scratches and marks?

If there are marks on the stove or it simply needs painting to freshen it up, you must clean the surface first.

Rust can be removed using fine steel wool, then painted using Morsø Senotherm spray paint (for black Morsø stoves use coke spray). Please note that MORSO stoves are dark grey in colour not black.

 

The glass in my stove is covered in soot.
what could be wrong?

You can clean the glass using Morsø Glass Cleanser. This must be done when the stove is cold.

If heavy soot build-ups appear, use treble ammonia water to clean the glass.

Soot may appear on the glass if the combustion temperature is too low or if the air controls are used incorrectly. The secondary air controls must be open and the primary air controls closed. The primary air either from the riddling grate or air control are only to be used during the lighting period or when dry wood is put into the stove.

Morsø recommends a moisture content in the wood of 16-20%. If you wan to be sure that wood is dry enough, a moisture meter can be purchased from your local Morsø Dealer.

 

Is it unusual for my stove to tick?

You can expect a slight ticking noise while the stove heats up or cools down.

 

There is soot in my chimney.
how did that happen?

If the temperature is too low you might experience tarry soot in your chimney. The combustion temperature will be too low if not enough air is supplied, compared to the amount of wood. Tarry soot is easily recognised as a brown sticky coat. Supply more secondary air to increase the temperature.

A stove flue thermometer placed on the lower part of the flue pipe will indicate if the air supply is correct. The flue gas temperature must be approx. 250°C. If the flue gas temperature is considerably lower, tarry soot may be created in the chimney. If the flue gas temperature exceeds 250 – 300°C, the inside parts might be superheated.

 

Smoke is coming out into my living room when I open the stove door.
How do I avoid that?

The stove must never be operated with the door open, the door should only be fully opened during refuelling.

Smoke may be emitted into the room at the time of refuelling if the stove is burning at a very low rate. To overcome this either turn the stove to full rate, or open the door slightly (1 or 2 cm) for a few minutes before adding any additional fuel.

If the door is left open for too long (2 minutes or so) during the refuel procedure, a large amount of cool air will be drawn into the chimney chilling the flue gases and slowing the draft. This will result in smoke and fumes coming back in the room; the refuelling time should be kept to a minimum.

If smoke is persistent, and the stove is difficult to light and maintain a good burn rate, there may be a problem with the chimney draught- you should consult with your installer or a qualified chimney sweep.

 

There is not enough DRAUGHT in the chimney.
What can I do

If the chimney is too short, has inadequate insulation or is leaky, there may be problems; get a chimney sweep to check it and measure the flue draft.

If the above possible problems have been eliminated, extend the lighting period, to ensure the chimney is well heated. The draw on the chimney will be greater when it is hot. This is achieved by using lots of kindling and 1-2 firelighters. After igniting the firelighters leave the stove door slightly ajar about 2 to 3cm for 5 to 10 minutes. When the majority of flame have died down and there is a good amount of glowing embers add 2-3 pieces of dry wood and keep the air supply open. On chimneys with slower flue drafts it may be necessary to leave the stove door slightly ajar again until the logs fully ignite. Once a good flame has been established and the door closed the air control can be set to the desired position. If you have an old brick chimney with a large inner diameter, it can be a good idea to reduce the area with a liner. Seek the help of a HETAS engineer, your local Morsø Dealer or chimney sweep.

 

 

Where do I buy spare parts for my stove?

Parts can be purchased from your local Morsø Dealer. If you are unsure about what type of stove you have, you can find a casting number inside the door. This casting number can identify the Morsø stove.

All parts of Morsø stoves are interchangeable, and we also guarantee Morsø parts are available for a minimum of 10 years after the stove is put out of production.

 

The glass in my stove has cracked.
What has happened and can I replace it myself?

Cracks on the glass may happen due to bumps from the wood. Besides, impurities may be found in the wood such as pebbles that may hit the glass during the combustion.

If the glass has cracked, it naturally has to be replaced.

Replacing the glass yourself is a fairly simple job. If you’re unsure about your ability or would prefer, talk to your local Morsø Dealer. Morsø has the necessary adhesive fibre for glass that can be bought at any Morsø dealer.

 

The baffle plate is burned into pieces.
Why has that happened, and can I replace it?

The baffle is a consumable item that should be changed as needed.

Morsø cast iron stoves have very long life if wearing parts are replaced when they are worn. When letting too much primary air through the grate shaker, the temperature in the combustion chamber becomes very high, and this can shorten the life of the baffle.

Another reason may be that there are ashes and soot on top of the baffle. Soot and ash on top of the baffle should be removed 1-2 times a year, this can be done with a brush or Morsø ash tool.

 

Do Morsø wood-burning stoves rust?

If looked after and installed properly, the stove will not rust.
If rust appears on the stove, it is usually because the stove has been exposed to moisture, possibly from the chimney.
In summerhouses, the temperature is often very cold in winter and the still air in the combustion chamber can cause condensation on the stove surface. You should therefore leave the valves in the stove open to prevent condensation forming on the oven, which can cause rust. Another good idea is to leave the door ajar when the stove is not being used for a period of time.

  • Anonymous

    I’m putting an oak beam on the wall above my morso squirrel to act as a mantlepiece.  Does it have to be a certain distance from the top of the stove?  The stove is inset in the wall and protrudes out a few inches.

    • Anonymous

      Dear Mark

      If the top plate of the stove projects into the room from the fireplace opening so that any part of it is directly beneath the mantle there must be a minimum clearance of 500mm.
      In the UK there is currently no regulation specifying the minimum clearance to a combustible mantle If the stove is fully inset, however we would recommend the mantle is fitted at least 300mm above the fireplace opening.

  • Anonymous

    I would like to install a Morso 06 Burner in our back room fireplace. We have had the adjoining kitchen knocked through to form one open plan room. The kitchen has an external extractor fan in it which is causing uncertainty with the chimney sweep/fitter that we have contacted regarding uk building regulations about carbon monoxide etc. Is it possible to fit an 06 burner with an independent external air supply and will this circumvent the building regs problem?

    • Anonymous

      Hi Crossley,

      Building Regulation Approved Document J (ADJ) currently does not mention the use of direct outside air supplies however it is widely recognised by manufacturers, installers and building control officers as an alternative installation method that has been successfully used in the UK and across Europe for many year. Unfortunately the Ø6 does not have this facility but a number of our other products do.

      ADJ states: For solid fuel appliances avoid installing extract ventilation in the same room. However it goes on to say: If mechanical extraction is unavoidable then seek specialist advise to ensure safe operation of the appliance. Therefore the Ø6 can be installed in the same room as an extractor if it can be shown the flue draft is unaffected. The flue pull can be tested with a suitable draft gauge or appropriate smoke test. If this method of complying with ADJ is adopted it is the responsibility of installer at the time of the installation to ensure the safe operation of the stove and chimney.

  • http://www.facebook.com/people/Tom-Pope/536286530 Tom Pope

    I have had installed a morso s50, when the log burner gets hot a low humming noise seems to come from the log burner itself I was wondering if you could shed any light on why this is so?

    • Anonymous

      Hi Tom Pope 

      Thank you for your question. The problem you have described is incredibly unusual if not unique and very difficult to give a definitive answer without more information.

      Therefore can you please call Tony Ingram on 01788 554410 or email your contact number to sales@morsoe.com and mark it for the attention of Tony. We will try to answer your question.

  • gtsoulas

    I have just installed a MORSØ 6148 in my house and it is lovely.  However after the first use the bottom part of the flue (where it connects with the stove) has become grey/whitish.  Is this normal?  Should I do something about it?  
    thanks for any tips

    • morsouk

      @gtsoulas

      Thank you for your enquiry.
      Over a period of time both the stove and the connecting flue pipe are likely to slightly fade to a lighter shade of grey, however we would expect this to take at least a year. The discolouration you have described should not have happened after only firing the stove once or twice.

      The connecting flue pipe should either be vitreous enamel or painted stainless steel; it would be very unusual for vitreous to show any discolouration and we therefore suspect either the paint used to spray the pipe or the pre treatment of the pipe before painting is substandard.

      We would recommend you contact your installer and ask them to inspect and refinish the flue pipe.

  • KT122

    I bought a Morso 04 a few months ago and had it installed properly by a HETAS engineeer. The Draught is good (it is back-vented) and I use only seasoned wood and follow all the correct procedures for lighting and re-fueling. Every so often, for no obvious reason, a strong smell of smoke comes into the room. The door seal is fine and the stove is properly fitted, so is this normal?  If so, I will have to stop using it as it is affecting my chest badly. I could understand if this was when I opened the door, but it’s not.  It’s just at random. Last night it was particularly bad and my breathing is now pretty difficult because of it. Should I expect this ingress of smoke or do you think there may be a problem with the stove?   I would really welcome any comments. I’d love to be able to enjoy my stove without this worry.

    • morsouk

      @ @KT122:disqus  

      We would strongly recommend the stove is not used until the installation is inspected.

      The clearance of smoke and other products of combustion from the stove is completely reliant on the flue draft. As the flue draws it will place the stove under a negative pressure thereby taking the combustion products away and drawing fresh combustion air into the appliance. If there is insufficient flue draft there will be a positive pressure inside the stove resulting in smoke and products being forced out into the room via the air inlets.

      The draft in the chimney is the result of the difference between the high temperature in the chimney and the cooler temperature outside. Other factors that determine whether there will be sufficient draft include the height of the chimney, climatic conditions such as wind speed, wind direction and air pressure.

      We would recommend you contact your dealer and or installer and request the chimney and flue draft is checked with an appropriate draft gauge .

      • KT122

        Thanks very much, I’ll contact the installer and get the flue draft checked. Might there be any way of improving the flue draft if it’s found to be weak, or will this just mean that my chimney can’t be used with a stove? Lots of people i’ve spoken to have Morso stoves and love them. No-one seems to have come across this particular problem, so I’m determined to solve it! Do you think that being back-vented makes it more difficult to extract the fumes efficiently? Also, I had the installer remove the second plate in the roof of the stove, as the instruction book suggested  ( for back-vented stoves). There is now one plate in the roof and the smoke is drawn across this to the front, just behind the door, where it curls around and into the roof of the firebox. Is this set-up correct?
        Thanks again for your help

  • CamRoon

    We have just purchased a 6140.  The installer has suggested taht we will need to fit two air bricks.  Can we use the outside air kit instead of the air bricks ?

    • morsouk

      The ventilation requirement will vary depending on the air tightness of the property. For new homes built to the latest specifications the ventilation requirement is 550²mm per kW of the stoves rated output. Therefore the 6140 needs 6 x 550 = 3300²mm of permanent free air; one standard air brick would give more than 3 times this amount.
      Older properties built before 2008 are unlikely to be as air tight and the ventilation requirement is reduced to 550²mm per kW of the stoves rated output above 5kW so the 6140 should only need a total of 1 x 550 = 550²mm of permanent free air; this is about the same size as a £2 coin. However the air inlet on the 6140 is formed as a 100mm diameter cast spigot at the rear of the stove and a direct connection to outside air can be attached. There is also a kit available to convert the rear air inlet to a base air inlet allowing the connection to be made through the floor below the stove. The base air kit is available from any authorised Morsø dealer (part number 54612621)

  • freedomoffaith

    We have a balanced flue gas fire and would like to get a mlti fuel burner. We do not have a chimney and hope to install an external flue. Would this be effective?
    We like the Morso 1410 clean heat but have just received word on the new Morsø S81. Would this be possible with either of these stoves?

    • morsouk

      Thank you for your question,
      It is possible to install stove with an external insulated chimney system; this type of installation is commonly vented off the top of the stove before passing thought the wall via a 45° bend. Externally the flue turns though a second 45° bend before its vertical rise; at the base of the vertical pipe below the second bend there should be a sweeping access. The flue should have no more than 4 bends in total and ideally have an effective height of at least 4.5M. The location of the flue terminal will also need to be considered depending on the pitch of the roof or location of adjacent structures. Your nearest authorised Morsø dealer will be able to fully advise following a visit to you home. Although both the Squirrel 1410 and the new S81 inset will work on this type of system the S81 has been specifically designed to fit a standard UK fireplace opening with a constructional hearth. As you currently have a balanced flue gas fire it is unlikely you have either of these and therefore to fit the S81 you would need to construct a suitable non combustible chamber.

  • gillian5

    We are looking to install a Morso Morso Squirrel 1412 in aa existing fireplace recess. This is an old property but I need advice on combustible air requirements. Please advise. In addition, can we flue the stove through the existing chimney and, if so, would a liner be required/ thanks

    • morsouk

      Thank you for your enquiry
      The Morsø Squirrel 1412 has a nominal rated out put of 5kW; therefore in an older property the installation should not require any additional permanent air for combustion. Homes build before 2008 are likely to have sufficient adventitious air to fulfil the needs of both the stove and flue.
      Although it is not a legal requirement to have the chimney lined we do recommend it. Basically the hotter a chimney is the better it will perform. Trying to heat a tradition 9”x 9” brick flue with a modern high efficiency stove such as the 1412 may be problematic. The smaller volume of air and surface area of a 125mm or 150mm liner will help to maintain a good flue gas temperature giving better performance and greater control over the appliance.
      As an approved appliance when burning wood in smoke control areas the Morsø Squirrel 1412 can be fitted with a 125mm liner.

  • Bigdog6

    The plate in the top of the stove (Badger) just below the flue outlet has cracked and warped.  This causes it to fall out on occasions.  is this part available for replacement? 

    • morsouk

      Over the past 12 years we have produced two different models of Badger stove, the 3110 and the 3112. There is an easy way to determine which Badger you have, the 3110’s secondary air control is located above the door and the 3112’s secondary air control can be found below the ash lip at the bottom of the door. We believe the part you are describing is the access baffle; the part number for this item is 34341400 for the 3110 and 34313600 for the 3112.
      Both of these parts are in stock and available from your nearest authorised Morsø dealer.

  • JGQ

    I have a morso 1416 which i have noticed smoke coming from the back when lighting. On taking the bricks out i find that there are 2 holes in the back of the stove which connect to the ones in the bricks,so is this where the smoke is coming from and should they not have a control flap to shut them off? 

    • morsouk

      The holes in the back of the stove supplying air through the back brick is the Tertiary Air System. Tertiary air inlets are pre set and have no adjustment flaps or control; its purpose is to guarantee sufficient combustion into the fire box at the right point to give a good clean efficient burn.
      The clearance of smoke and other products of combustion from the stove is completely reliant on the flue draft. As the flue draws it will place the stove under a negative pressure thereby taking the combustion products away and drawing fresh combustion air into the appliance. If there is insufficient flue draft there will be a positive pressure inside the stove resulting in smoke and products being forced out into the room via the air inlets.
      The draft in the chimney is the result of the difference between the high temperature in the chimney and the cooler temperature outside. Other factors that determine whether there will be sufficient draft include the height of the chimney, climatic conditions such as wind speed, wind direction and air pressure.
      If the problems you have experienced are intermittent or if there has only been a small amount of smoke emitted into the room during the light procedure it may simply be the chimney is not getting hot enough fast enough. This can be down to climatic conditions or the method of lighting. It is better to start the stove with paper and kindling rather than firelighters as firelighters generally won’t produce as much heat. Also don’t be concerned about leaving the door of the stove ajar (about 2cm) for10 to 15 minute at the time of lighting if the flue is slow to warm.
      If however there is a large amount of smoke or if the smoke is persistent DO NOT continue to use the stove until you have contacted your dealer and or installer and the chimney construction and flue draft have been checked with an appropriate draft gauge .

  • berano

    can the morso 06 be fitted into a uk class one chimney without a flue liner

    • http://morso.co.uk Morsø UK

      Thank you for your question
      Whilst it is not a legal requirement to line a flue when installing a solid fuel stove it is strongly recommend.
      The stoves performance is reliant on the flue draft and larger unlined flues will cool the flue gas temperature resulting in a slower draft.
      Combustion air is only sucked into the stove as the flue pulls, if the pull is reduced lack of air in the stove is likely to produce sooty deposits on the glass and may cause the flame to suffocate and go out. A more serious consequence of cooler flue gas temperature is condensation, condensing flue gases will deposit tar on the inner surface of the chimney potentially leading to a chimney fire.

  • http://www.facebook.com/people/Rob-Learmonth/611279828 Rob Learmonth

    What size lagging rope will i need for my stove. is there only one size?

    • morsouk

      Hi Rob
      It really depends on which stove you have and what you mean by ’lagging rope’.
      If you are referring to the sealing gasket between the stove flue collar and connecting flue pipe a 5mm diameter gasket should be used. Every Morsø stove is supplied with a length of 5mm gasket in the instruction pack.
      With the exception of a few of the latest steel stoves all of the appliances use the same 8mm diameter gasket for doors and body joints. However the gasket material used on our stove is softer than many available. If a harder 8mm gasket is used it is unlikely the doors with closes and the resulting pressure on the hinges may damage the castings. Genuine Morsø door and body gasket kits with adhesive are available from your nearest authorised Morsø dealer (kit part number 62903400)