Maintaining comfort and energy efficiency in your home requires selecting the appropriate heating solution. A common choice made by a lot of homeowners is the bimetallic radiator. These radiators are a popular option for heating systems because of their reputation for dependability and efficiency.

It can be difficult to gauge how many sections are required for your particular area, though. The size of the room, the quality of the insulation, and the climate can all affect how much heating is needed. Fortunately, you can find online calculators to make this process easier for you.

In the long run, knowing how many radiator sections you need can save you time and money, regardless of how big or small your room is—12 square meters or 20. You can obtain an accurate estimate that is customized to your home’s requirements by using an online calculator, which will guarantee effective heating and year-round comfort.

In this post, we’ll look at how to use an online calculator to figure out how many bimetallic radiator sections are required for rooms ranging in size from one to twenty square meters. With this knowledge, you’ll be more prepared to design a comfortable, welcoming atmosphere in your house and make an informed choice.

Room Size (m2) | Sections of Bimetallic Radiator Needed |

1 m2 | Not recommended for a radiator |

12 m2 | Around 2-3 sections |

18 m2 | Around 3-4 sections |

20 m2 | Around 4-5 sections |

## Online calculator

In the web calculator, enter the radiator connection scheme.

## What is the danger of approximate calculation of the number of radiator sections?

The approach described above is rather imprecise and ignores many variables that could influence the computation’s outcome. One aluminum element or bimetallic battery’s passport capacity is highly relative. After all, certain circumstances—namely, the bimetal fin’s heating temperature of 100 0 C, a ceiling height of up to three meters, the absence of any cold (external) walls in the space, and the presence of a single window—can result in its value.

For an apartment with ceilings no higher than 2.7 meters, the computation of bimetallic radiators appeared to be fairly straightforward. The normative thermal capacity (136 W) of a single bimetal segment multiplied by the square meters of each room is sufficient. The manufacturer specifies the value of one segment’s thermal capacity, which is divided by the result. However, estimating is dangerous in this regard.

If you merely use the information from your passport and ignore the unique features of the space, you may determine inaccurately how many radiator sections are required for every square meter. This could result in the room not being heated enough, or it could force forced ventilation to remove excess heat. It is essential to account for all the subtleties of the room’s conditions for an accurate calculation.

When it comes to heating your home effectively, choosing the right radiator size is crucial. The size of the radiator depends on the room"s square footage, with larger rooms needing more heating power. For a small room of 12 m², one section of a bimetallic radiator should suffice. However, for a slightly larger space of 18 m², you might consider using two sections to ensure adequate warmth. For rooms spanning 20 m², three sections would likely be ideal to maintain a comfortable temperature. To simplify this process, you can use an online calculator tailored to bimetallic radiators, making it easier to determine the right number of sections needed for optimal heating in each room.

## Required data for calculation

The maximum heat output of a single bimetallic segment is typically indicated in the accompanying documentation. Under ideal heating conditions, this averages 180 W; however, it is important to account for the associated heat losses resulting from specific room characteristics.

Use reduction factors in the computation that establishes the number of sections.

- Roof heat loss 25 – 30%.
- Windows 10 – 15%.
- Floor 10 – 15%.
- Walls 10 – 15%.
- Joints 10 – 15%.
- Pipe (if any ) 20 – 25%.

## Heat loss coefficients

A set of guidelines based on SNiPs GOST 30494-2011 and GOST 32415-2013 was created and approved for the design of heat supply systems. The standard for heat power output in a room measuring 10 square meters, with a ceiling height of up to three meters, one window, and one exterior (cold) wall, is regulated by SP 60.13330.2016.

SP created the following heat-loss-correcting coefficients in order to align the original data with the heating battery’s actual operating conditions.

K1-considers the frames’ structural organization:

- double window frames – 1.27;
- double glazing of fiberglass windows – 1.0;
- triple – 0.85.

Wall thickness is taken into consideration by K 2.

- 1 brick wall – 1.27;
- brickwork of 2 bricks – 1;
- high degree of thermal insulation – 0.85.

K 3 is the window-to-floor area ratio.

- 1/2 – 1,2;
- 1/3 – 1,0;
- 1/10 – 0,8.

K 4 is the typical wintertime room temperature:

- 30 degrees – 1,5;
- 20 – 1,1;
- 10 – 0,7.

K 5: The quantity of chilly vertical enclosures

- 1 – 1,1;
- 2 – 1,2;
- 3 – 1,3;
- 4 – 1,4.

K 6-the area above the chamber:

- Cold subfloor volume – 1.0;
- attic or living floor of an apartment building – 0.8.

K 7: Height of ceiling:

- 2500 mm – 1.0;
- 3000 mm – 1.05;
- 3500 mm – 1.1.

The final total is divided by the heat output of a single section after the correction factors have been entered into the calculation. Section counts were rounded to the nearest whole number. If the result is 10.4, for instance, then make 11 sections.

A bimetallic radiator’s section count must be properly selected in order to provide efficient insulation and heating for your house. Finding the right radiator size can be difficult because rooms vary in size. Thank goodness, online calculators have made this process easier and offer a practical way to determine how many sections are required based on the size of the room.

You may discover that a radiator with fewer sections is enough to keep a comfortable temperature in a smaller area, such as 12 m². However, in order to distribute heat evenly, larger rooms—such as those that are 18 or 20 meters square—might need radiators with more sections. It’s important to take into account not only the room’s size but also elements like the amount of windows, ceiling height, and insulation quality.

Recall that finding the ideal balance for effective heating is more important than simply purchasing the greatest number of sections available. While undersized radiators might find it difficult to provide enough heat for the space, oversized radiators can waste energy and raise heating expenses. Making an educated choice with the aid of an internet calculator will ensure that your house stays warm and comfortable without going over budget.

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**What type of heating you would like to have in your home?**