Faults & repair

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.

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.

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.

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.

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 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.

Is it unusual for my stove to tick?

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

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.