BOILER CONNECTION TO CHIMNEY

A topic that bothers most people who are interested in buying a new boiler for their family home or operation. In this short article we will provide you with basic useful advice on how to choose the right boiler and a chimney for your house.

Proper connection of the boiler to the chimney requires several aspects, not every house is the same height and does not have the same area. Therefore this topic should be consulted with a chimney sweep or planning engineer. The chimney which has a high impact on the efficiency of the entire heating system and the overall comfort of living must also adapt to the latest trends in the field of heating. The chimney design is regulated by special standards and laws which set the conditions for the chimney.

Here are some practical examples of houses, businesses and industrial buildings:

Bungalow House

Low-rise detached houses popular for low operating costs also need to meet the parameters for proper operation. In this type of house, the chimney should reach a minimum. height 6 m, the lower chimney could cause insufficient draft because the chimney does not have time to remove the amount of flue gas produced in the boiler. Not only the height but also the diameter of the chimney is important. We recommend a minimum of 20 cm and a minimum chimney draft of 23 Pa.

If the chimney height is higher, the chimney diameter may be smaller but not more than 20 cm!

A suitable boiler for a bungalow-type family house is in the power range of 15-30 kW at approx. 80-100 m2. For maximum boiler output and long service life, it is prescribed to use an Oventrop storage tank and mixing device for the boiler.

Two-storey House

Two-storey family houses – When building taller houses, the chimney should reach at least 10 m, the lower chimney could cause insufficient draft because there is not enough time to remove the amount of flue gas produced from the boiler in the chimney. On the contrary the diameter should be narrower than a bungalow-type house with at least 16 cm and a minimum chimney draft of 23 Pa. If the height of the chimney is higher, the diameter of the chimney may be smaller but not smaller than 16 cm!

A suitable boiler for a two-storey family house is in the power range of 15-30 kW at approx. 200-250 m². For maximum boiler output and long service life it is prescribed to use an Oventrop storage tank and mixing device for the boiler.

Small business premises

Smaller companies, apartment buildings, schools – Premises of small businesses usually need to heat a larger area, eg (offices, warehouses, etc.). The height of the chimney should allow the correct extraction of the produced flue gases from the boiler. The height and diameter of the chimney is designed by the planning engineer. It depends on the type of building, where the chimneys reach different heights from 7 m to 15 m.

A chimney with insufficient height could cause insufficient draft, because there is not enough time to to remove the amount of flue gas produced from the boiler in the chimney. Minimum chimney diameter 30 cm and draft 23Pa.

We also think of small plants, so we have developed boilers with a large loading chamber and a combustion efficiency of up to 92%. A suitable boiler for small operations is in the power range of 30 to 55 kW, which can easily heat an operation with an area of ​​approx. 1000 m2. For maximum boiler output and long service life, it is prescribed to use an Oventrop storage tank and mixing device for the boiler.

  Boilers suitable for family houses and small businesses

Industrial premises

Industrial buildings and larger companies – The space of an industrial building needs to heat a larger area, the chimney in these buildings should reach 9 m, a lower chimney could cause insufficient draft, because the chimney does not have time to remove the amount of flue gas produced from the boiler. The diameter should be at least 30 cm and with a minimum chimney draft of 23 Pa.

We have developed the ATTACK DPX boiler for industrial buildings with an output range of 80 and 100 kW. Thanks to a large loading chamber of up to 1100 mm and a high combustion efficiency of up to 91%, it can easily heat a space with an area of ​​approx. 2400 m2. In any case, it depends on the quality of the building structure and the performance of the boiler is solved by the planning engineer.

For maximum boiler output and long service life, it is prescribed to use an Oventrop storage tank and mixing device for the boiler.

 

Boiler connection to chimney and solution for insufficient flue gas draught.

If, for technical reasons, your chimney cannot reach a height according to the type of your family house, business or industrial building, do not despair. To solve this problem, we have developed an additional flue gas exhaust, which will ensure the extraction from the boiler to the chimney even with insufficient chimney parameters.

The highest form of confidence in the functionality of the boiler connection to the heating system is checked by an expert, so we recommend consulting a service technician. Calculation according to the standard and regular care, which will ensure a long service life of the equipment.

We believe that we have helped you to find your way to the given issue. We are preparing another article for you in the field of heating and choosing the right boiler and its accessories. Don’t miss another article, subscribe to the newsletter.