Ventilation in the window sill: methods and detailed instructions for arranging window sill ventilation

In residential buildings and apartments with large wall thicknesses, heating radiators are mounted in a special niche, despite the fact that the width of modern window sills often exceeds 40 centimeters. This has a bad effect on air circulation. Condensation begins to form on the window glass. No matter how high-quality the installation of a plastic window is, it will not save you from concentrating moisture on the glazing. The only salvation is ventilation grilles for window sills (they are also called convection or radiator).

When may it be necessary to install a grille in a window sill?

Modern technologies require the introduction of innovative solutions to improve the functionality of window systems, the efficiency of heating radiators, and improve visual design. A grille is installed in the window sill to normalize the circulation of air masses and eliminate condensation.

The need for ventilation may arise in the following cases:

1. Planning for the installation of wide window sills covering the radiators . The heater will not distribute air properly. Condensation will begin to collect. The room will always be slightly cool and damp. It is enough to install a decorative grille to restore functionality to the equipment without violating the design concept.
2. Incorrectly installed double-glazed windows , which leads to frequent fogging of the glass. Of course, a visit from a specialist from the company from which the PVC windows were ordered will ease the situation. But this is only relevant when the warranty service is valid. In other cases, it is more profitable to install a ventilation system.
3. Plugging the holes of an already mounted grille . This negatively affects air circulation, microclimate, and comfort in the room.
4. Installing a countertop and creating a work area (for example, in the kitchen) near a window . In this case, you cannot do without ventilation built-in accessories.

A grille in the window sill often solves all problems. If there is no effect, we recommend considering other factors in the formation of condensation - poor-quality double-glazed windows, frequent watering of flowers, sudden heating of the room and ventilation.

What height should be for installing batteries?

A high-quality heating system is a mandatory factor to ensure a comfortable life for people in an apartment building. In order for energy efficiency to be at a high level, it is necessary to comply with the requirements for the installation and placement of radiators. There are established standards for the location of heating devices, following which you can ensure optimal temperature in the house and reduce heating costs. Before starting installation, you need to know how far the window sill should protrude above the battery, at what distance from the battery to the wall and floor to install the heating circuit, and which circuit is best to choose.

Window sill grilles for radiators

A convection grille in a window sill for radiators is an ordinary flat accessory with a perforated surface. The ventilation grille is equipped with small perforations. Small objects will not fall through such holes.

In this case, heated air passes freely from the radiators to the window area. The metal-plastic window structure remains dry and has a neat appearance.

A variety of products allows you to make the right purchase. After all, it is represented by accessories that differ:

• material (plastic, wood, metal);
• luxurious palette;
• variety of sizes;
• variety of forms.

You can install a radiator ventilation grille for a window sill with your own hands, armed with a tool.

Criterias of choice

In addition to the price decision, when choosing convection grilles there are criteria:

We recommend that you read: Adsorption air dehumidifier

Criterion Description

Note! It doesn’t matter whether one long grille or several short ones will be installed, the main thing is that the size of the product is the same as the size of the radiator battery.

Types of gratings

Most often, the design dimensions are standard, so they do not always fit exclusive, atypical window sills. Manufacturers have provided for this, so on the building materials market you can find round-shaped products, distinguished by their compactness, or rectangular models for narrow surfaces (their width is 60 * 80 mm).

The holes can be varied - rectangular, round or shaped. Construction store specialists will be able to help you choose more quickly if you show a photo of the window opening and the location of the radiators.

Regarding design features, adjustable models are more functional, allowing you to change the direction and speed of air flows. Unregulated products are slightly cheaper.

When choosing, you should start from the material. This could be plastic ventilation in the window sill. Before purchasing, you need to weigh the pros and cons. For example, a PVC lamella will last about 2.5 years, then deformations will begin. And the palette here is not the richest.

Ventilation accessories made of steel are much more practical. Some manufacturers make products to order, so different designs are possible. They are painted according to the RAL table, which guarantees a large selection of shades.

Wooden grates are also quite durable. They are most often used in kitchens if the window sill is used as a countertop and is stylized. Aluminum models have increased resistance to moisture.

Rules for determining distance

The standards are regulated by SNiP. The document determines at what height to hang heating radiators, as well as the dimensions of the air gaps and other installation parameters:

1. The battery is placed under the window openings so that the center of the radiator and the center of the window sill coincide. The width of the heating device should be up to 70% of the size of the window opening.
2. The optimal height for placing the radiator is 12 cm from the floor to the lower collector, 5 cm from the upper collector to the window sill, 2-5 cm from the back wall of the radiator to the wall.

When reviewing the installation standards for heating radiators in an apartment, it is necessary to take into account the material of the wall, window sill and its dimensions.

Advice! To reduce the width of the space from the wall to the battery when the window sill protrusion is small, you can line the wall with foil heat-reflecting material. In this case, you can leave a minimum air gap.

Holes in the window sill for ventilation

When you decide to install ventilation grilles for window sills, you should take care to correctly cut the holes where the structures will be mounted. Compliance with basic sizing and installation requirements will help you complete the installation.

Convector perforated screens are often installed above the radiator. The dimensions and shape of the slots must correspond to the contours of the radiator top. If the double-glazed window does not fog up much, you can limit yourself to one convection grille located in the center.

The easiest way to work is with PVC window sills. It is enough to mark the location of the future hole with a marker or pencil and carefully cut it with a tool (drill and jigsaw). Silicone sealant is used to secure the ventilation system.

How to install correctly

According to the new rules, the design of all new buildings is carried out taking into account ventilation grilles. But in most cases, you have to install these products yourself.

Most often, such gratings are easily glued with ordinary construction silicone. It is recommended to attach plastic ones using a special glue for PVC products. Other important materials and tools include a drill, electric jigsaw, and marker.

Using a marker, the area of ​​the window sill intended for cutting is marked, and then one small hole is drilled in each corner.

Next, the excess area of ​​the window sill is carefully sawed off, and a grille is installed on this area, followed by a strong fixation. To make the glue dry faster and more reliably, it is recommended to temporarily place some suitable press directly on the grille.

Supply valve under the window sill

Warm PVC windows provide a pleasant stay indoors in winter and summer, giving comfort and silence to any home. But plastic window systems have one big disadvantage - poor ventilation. And this is fraught with regular headaches, migraines, and fatigue. Of course, you can constantly ventilate the apartment, which will provide a constant flow of fresh air. But this is not an option in winter.

You can use a hood, but it is not responsible for supplying oxygen, but only removes unpleasant odors and carbon dioxide.

A good microclimate for your home will be provided by a high-quality window sill ventilation system and a supply valve to the window. The inlet is built into the glass unit, forming a narrow gap that regulates the oxygen supply. The devices can be automatic or manual.

What causes condensation to form?

The concept of condensation refers to water that settles on window glass and frames due to excess presence in the air.

Most often, the occurrence of condensation is provoked by the following factors:

• operation of heating radiators;
• room temperatures are too high;
• making serious mistakes when installing windows in openings;
• lack of ventilation or incorrect operation of these products;
• installing a window sill whose width is too large and covers the radiators, resulting in water diffusion;
• high thermal conductivity of walls and window structures.

In most situations, the heating radiator is placed directly under the window sill tabletop, therefore, this element gets very hot and causes condensation. To get rid of this trouble, you need the correct installation of a ventilation grille that is built into the window sill

Installation features

The installation of ventilation hatches for window sills should begin with the choice of installation location. Installation is carried out inside and outside. The location is determined by the appearance of the structure. Internal grilles must be in harmony with the interior and window system, have suitable dimensions and shape in order to rationally use the usable area.

Lattice structures are installed next to the window or at the ends. It all depends on the position of the heating radiator. For products hidden in a niche, the installation type is used closer to the double-glazed window. If the battery protrudes, then ventilation is mounted above it.

Tool used

It’s worth saying right away that it is not necessary to remove the window sill for installation work. It is enough to position the product correctly and make markings with the lattice slats facing the window. Then the vent is mounted without dismantling the entire structure. For installation, use a marking tool, a grinder or an electric jigsaw, a special glue or sealant, a massive object for the press, a drill with a drill whose diameter exceeds the width of the blade.

Algorithm of actions

Plug-in grilles are installed quickly and easily. The whole process is divided into 5 stages. The first is marking the location and drilling corner holes. The second is cutting out the seat and trying on the structure. The third is to coat the edges of the grille and the hole with an adhesive or sealant. The fourth is placing the product in the designated place. Fifth - removing excess sealant, applying a press. After 24 hours you can enjoy the result!

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Types of heating batteries

The efficiency of heating a room will depend not only on how far from the floor the radiator or radiator is hung, but also on their connection diagram, the material and design of the heating devices themselves. The following models are available on the market today:

1. Cast iron batteries. The adult generation probably knows them firsthand. During the Soviet Union, only these models were used in heating systems. Today they have a more presentable appearance. They are characterized by a high level of heat capacity, long-term heat transfer, absence of consequences from water hammer, and they also have an increased service life.
2. Steel radiators. They have low heat transfer rates - heating occurs quickly, but they cool down no less quickly. The welded structure is sensitive to hydraulic shock. There is no way to add sections yourself. At the same time, the weight of the product and ease of installation attract many homeowners. Products of the German brand “Kermi” are in particular demand.
3. Aluminum radiators. They are characterized by low weight, beautiful shape, and increased thermal output. They are presented on the market in two versions, where in the first the design consists of one monoblock, with a volume that provides different powers, in the second - a stacked sectional one.
4. Bimetallic batteries. The innovative design of the placement of heating collectors made it possible to achieve the level of heat transfer of aluminum models, as well as the strength and reliability of their cast iron counterparts.

Methods of dealing with “crying” windows

If foggy windows were only an aesthetic problem, then it could be solved with the help of napkins or cleaning cloths. But falling condensate indicates a poorly functioning ventilation system. And this is the development of fungus, musty air in the apartment, damaged surfaces, rust, poor health of the apartment’s inhabitants.

The “correct” window sill will help remove condensation

Therefore, it is necessary to take effective measures:

• The window sill should cover heating radiators by no more than one third of its thickness.
• When replacing or installing windows, carefully make slopes and seal cracks.
• Constant ventilation of rooms, reducing air humidity.
• Repair broken ventilation ducts.
• Installing a ventilation grille in the window sill.

At what price can you buy ventilation grilles for a window sill - price review

Ventilation grilles for window sills can be purchased at building materials stores and retail chains that deal with similar products and also specialize in sanitary equipment. In addition, similar products are offered by online stores of various types, both working with building materials, and with plastic products and elements of decorative finishing of premises.

From companies engaged in the production of interior decoration elements, you can order ventilation grilles according to individual sketches

The following table shows the cost of individual models of ventilation grilles as of the second quarter of 2021:

The presence of a large number of models made from various materials and in a wide range of overall dimensions allows you to choose the necessary product for a specific location, and the ease of installation allows you to do the installation yourself.

Advantages and disadvantages

Before you take on this idea, you should weigh everything carefully. The main advantage is the absence of condensation, which extends the service life of the window.

Disadvantages include:

• financial expenses;
• dismantling and installation work;
• possible changes to the interior.

Additional costs: purchase of a convector, tools, insulating and insulating materials. During work, you may have to vacate the room so as not to stain the furniture, because... During work, a lot of dust is generated. For normal operation of the heater, it is necessary to make holes or install a grille, this will change the appearance of the window sill.

Principle of operation

An electric convector works as follows: when voltage is applied to the control unit, the processor uses sensors to check the temperature of the heat exchanger, and if it is lower than required, it sends a command to turn on the heating element. The oil heats up and transfers heat to the finned radiator. The air, passing through the grille, moves past the radiator with the help of fans, heats up and goes out.

Rising to the upper part of the window opening, it comes into contact with the cold slopes, begins to cool and descend. Cold heavy air is below and is sucked in by fans, the process continues.

When the oil in the convector heats up to the maximum temperature, the sensors notify the processor about this, and it issues a command to turn off the heater. Depending on the selected mode, the fans may continue to run or turn off. In models where a processor is not provided, turning off and turning on occurs using thermostats.

On water convectors, automation is not needed, since they cannot overheat. To regulate the air flow and heat the window, you can use the taps near the radiator: changing the water supply, regulate the temperature of the radiator.