Gas consumption for heating house 100 m²

If the system has been installed and run for a while, it will be relatively easy to calculate the nominal gas consumption for heating a house of 100 m². All that is needed to do is take meter readings at the beginning and end of each month throughout the year, summarize them, and then calculate the average arithmetic parameter. An additional consideration is whether these data are required during the building of the house in order to select cost-effective energy sources and suitable heating equipment.

100 m³ of gas used to heat a house

Because of this, it is crucial to ascertain the weighted average gas consumption for heating a specific area’s structure. There are numerous ways to carry out these computations.

The procedure for heating for heating with network gas supply

Nowadays, the best energy carrier for setting up a heating system for private housing is natural gas, which is delivered to customers through engineering networks. The low cost of fuel, the absence of the need to store it, and the relatively high efficiency of contemporary gas equipment all play a role in this.

Naturally, power is an important consideration when selecting a gas boiler for home heating, as it affects not only the efficiency of the entire heating system but also the energy carrier consumption. Nevertheless, there are numerous other aspects that should also be considered that are impacted by gas consumption in addition to the boiler’s power. These include the local climate, the building’s architectural features, the size and height of the ceilings in heated rooms, the degree of insulation in the building’s structures, the kind and quantity of windows, and other significant elements.

The area of the premises and several other factors determine the required power of the heating system.

It should be noted that the boiler’s passport power indicates its maximum capacity, which is obviously greater than the necessary specifications. For example, the best model of the heating device is always chosen with higher rates after calculations are made in the amount of thermal power needed to heat the house. For instance, the owner will undoubtedly choose a boiler with a capacity of roughly 15–16 kW if the computations show that the heating system needs 12–13 kW.

All of this is being said now to be clear: relying solely on the boiler’s technical documentation’s listed characteristics would be incorrect when estimating the amount of gas needed for heating and anticipated costs. Gas consumption (m3/h) is typically listed in the product parameters; however, this is once more done to attain the power that the manufacturer has stated. The overall results could seem scary if you base your decisions on these indicators!

To ensure that gas is the most cost-effective fuel, however, it is imperative to accurately calculate the estimated amount used as well as identify any steps that can be taken to lower consumption and, consequently, lower the regular payments for it.

The unrealized power of the heating device—which is still unlikely to be used "to the full coil"—and the required thermal capacity for both high-quality home heating and replenishing of the house’s thermal losses serve as the primary indicators with which to begin your calculations.

For such thermal calculations, the ratio of 1 kW of thermal energy per 10 m² of heated room is frequently used as the starting point. Although this method is obviously very useful for calculations, it still falls well short of accurately representing the actual circumstances of a given home and neighborhood.

It is preferable to perform a more comprehensive computation that accounts for all the major variables influencing the necessary thermal power. If you follow the method outlined on our portal, completing this task is not too tough.

How can the required thermal power be independently calculated? Information about the available methodology for performing independent calculations is available from the portal dedicated to electric heating boilers.

The suggested article is all about electric boilers, so don’t worry about it; the formula for calculating power remains the same.

The number that emerges from the computations will serve as a "beginning point" for figuring out the typical gas usage for heating.

You will require a formula for additional computations that accounts for the energy potential’s "blue fuel," or the quantity of heat released during the combustion of one cubic meter of gas.

V is equal to q / (nI × ηi).

• V – the desired value, that is, gas consumption to obtain a certain amount of thermal energy, m³/hour.
• Q – necessary thermal power, W/h, to ensure comfortable conditions in the premises.

How to calculate it – have already decided. But again it is necessary to make an important remark. As can be seen from the calculation conditions, the value obtained will be maximum, designed for the most unfavorable conditions of the coldest decade of the year. In fact, during the entire heating season there will be not so many such periods, and the boiler with a well -planned heating system never works constantly. And since our goal is to determine precisely the average rather than the peak consumption of gas, it will not be a big mistake to accept the average value of the generated power by 50% of the calculated. Again, not to be confused with the passport power of the heating boiler.

• NI – Specific lower heat of gas combustion. This is a calculated tabular value that meets existing standards. So, for network gas it is accepted equal to:

Type of gas	Specific heat of combustion (MJ/m³), in accordance with DIN EN437
NI	HS
Natural gas G20	34.02	37.78
Natural gas G25	29.25	32.49

Be mindful of the kind of gas. G20 is used in home networks the most frequently. However, gas from the same second group—type G25, which has a higher nitrogen content—can already be utilized. Its energy potential is naturally lower. If you are unsure about the type utilized in your network, contacting the regional gas supply organization can easily provide clarification.

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One more detail. There is one more value in the table: HS. This is the heat of gas combustion’s supposedly higher value. This means that water vapor, which is created when gas is burned, also contains latent thermal energy. If this energy is harnessed, the fuel’s overall return naturally rises. This condensation principle, which selects around 10% of the heat owing to the transfer of steam into a liquid aggregate state, is used in the new generation of boilers. That is, calculations for heating systems using boilers of this kind can be made using the indicated indicator.

The specific heat of combustion is expressed in Joules, but it needs to be converted to watts in order for the calculation to be accurate. The following is the ratio:

3.6 MJ is equal to 1 kW.

As it happens in our instance:

Type of gas	Specific heat of combustion (kWh/m³)
NI	HS
Natural gas G20	9.45	10.49
Natural gas G25	8.13	9.02

• ηi – the coefficient of the beneficial action of the boiler, that is, a value showing how effective in a specific model the heat energy received from the combustion of gas is consumed precisely on heating the coolant.

This is the product’s passport value. Two values can also be shown in contemporary boiler models, corresponding to the highest and lowest heat of gas combustion, using the fractional sign hs / hi, for instance, 92.3 / 84%. Of course, you can select a number that matches the boiler’s actual operating modes. However, it should usually be taken as the Hi mode for dependable computation, "without embellishing" equipment capabilities.

Now that all of the calculation’s data are known, you can move on to more useful computations. Take this instance into consideration:

Let us assume that 9.4 kW of thermal energy is required for the efficient heating of a specific 100 m² home. G20 is the network gas. PPD boiler: 0.88. The average gas consumption for heating must be ascertained.

As was previously mentioned, the necessary thermal power can be divided in half to find the average consumption value; therefore, we will use 9.4 /2 = 4.7 kW in our computations.

V is equal to 4.7 / (9.45 × 0.88) = 0.565 m³/h.

As a result, figuring out the daily consumption for a month or the full heating season is already simple:

• On average, on average, it is consumed – 0.565 × 24 = 13.56 m³;
• For a month on average – 13.56 × 30.5 = 413.71 m³;
• The heating period in various regions may differ in its duration. But, for example, take 7 months:

7 × 413.71 = 2896 m³

If you are aware of the cost of a single cubic meter of gas, you can roughly schedule your "accounting" for the forthcoming heating season.

Reiterating that the resulting value of consumption per hour is extremely average is important. It will, of course, be higher during the height of winter frosts, but it will "recuperate" in the fall or spring, during thaws, or during times when the local weather is stable.

We’ll include a calculator to help you figure out the average natural gas consumption on an hourly, daily, and monthly basis to make things easier for you, the reader. With the approximate length of the heating season in the area and the cost of "blue fuel," calculating the total expenses would then not be too difficult.

Calculator of average consumption of network gas for heating needs

Calculation of liquefied gas consumption

Using gas that comes from a centralized gas pipeline is both convenient and cost-effective. Sadly, gas pipelines are installed in every community or they pass a long way from a built home, making it impossible for the hosts to afford to pay for the connection. As a result, opportunities like this are rare. As a result, some homeowners use liquefied gas, which is transported and kept in gas troops or cylinders that are loaded with this fuel’s special delivery services.

Using imported liquefied gas is sometimes the best course of action.

Large volumes of gaseous materials, including liquefied gas, can be stored in gas boards. Typically, these containers are placed in pits that have been specifically designed for them and buried; the hatch cover, which allows the gas tank to be filled, is the only part that is visible.

Storage of liquefied gas – gas holder

When using liquefied gas from cylinders, multiple fuel-filled containers can be simultaneously connected to the intra-dilution.

Cylinders linked to the internal gas wiring of the house

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While doing calculations is fundamentally the same as what was previously explained, there are some distinctions. Given that the fuel consumption in this instance will be expressed in kilograms or liters, they primarily pertain to the overall fuel condition.

You must be aware of some of the liquefied hydrocarbon gas’s key physical properties in order to calculate how much of it is consumed:

• The fuel density of the G30 type (propane-butane mixture of St. Petersburg) is 0.524 kg/l.
• The specific heat of combustion is taken equal to 45.2 MJ/kg.

Although the volume of gas cylinders used in domestic settings can vary, 50 liter capacities are typically utilized for heating. They are typically only 80–85% filled, or about 40–42.5 liters of liquefied gas fitting, in each cylinder in order to meet safety regulations.

You should convert the specific heat of combustion value to liters because it turns out that the calculation will be a little bit more visual with liters.

A liter yields 23.68 MJ.

We convert to the necessary watts:

6.58 kW/l = 23.68 / 3.6

• So, to calculate the consumption of liquefied gas for heating per 100 kV. m. the area of the house, for the same example, which is given above (the average power of 4.7 kW, efficiency of the heating boiler – 0.88), we will use the already known formula, but with the values already brought to liters:

V is equal to q / (ni × ηi).

V is equal to 4.7 / (6.58 × 0.88), or 0.81 l/h.

Furthermore, just like in the preceding example, everything

• Average daily consumption:

19.48 × 0.81 × 24

This number suggests that a single cylinder can hold 42 liters of fuel. It will last slightly longer than two days (roughly 52 hours) for heating needs, but that is not accounting for the potential gas costs associated with other uses, like cooking.

• The monthly heating consumption will be:

19.48 × 30.5 = 594.16 l., or approximately 14 additional Twisted cylinders.

• For seven months of the heating season, the total consumption can be:

4160 liquefied gas liters, or nearly 100 standard 50-liter cylinders with standard dressing, are equal to 594.16 × 7.

Naturally, this is a sizable amount of fuel, and it will be expensive, especially when transportation costs and the requirement for well-planned warehousing are factored in. However, this method is more cost-effective and preferred than using electric heating or solid-or liquid-fuel boiler equipment.

Additionally, a dedicated calculator is set up to determine the amount of liquefied gas consumed:

Calculator calculator of liquefied gas consumption for heating needs

How can you reduce the average gas consumption?

First and foremost, since well-insulated buildings can contribute to substantial heat loss and inefficient use of boiler heat energy, lowering heating costs can be achieved by improving the insulation of all house structures.

Good insulation in every part of the house is essential to the heating system’s effectiveness.

You can clearly see from this plan how it can receive heat from the house. Consequently, up to 30 ÷ 35% of the heat generated by the boiler is lost through windows with low-quality frames, the roof, walls, and entrance doors that are indelified at 14 ÷ 15%, 23 ÷ 25%, and 13%. People frequently use the metaphor "you have to heat the street" to describe this process. The amount of money lost on heating will increase with the degree of heat loss.

A heat loss distribution diagram categorized by building type

It is appropriate to make a one-time investment in high-quality home thermal insulation to lower these costs; in a few years, the investment will pay for itself. In order to achieve this, it is required to plan and coordinate the insulation of the attic ceiling, walls, floors, and, ideally, the roofs. Additionally, windows and doors must be replaced with contemporary models that offer high energy conservation.

Wall insulation

Up to 25% of heat passes through walls, regardless of the material used in their construction. As a result, they need insulation by law. There shouldn’t be any issues selecting from the wide variety of materials available today for thermal insulation of the enclosing structures.

There are numerous high-quality wall insulation technologies available.

The most common material for these uses is polystyrene foam, which is also one of the easiest to install and most reasonably priced. Polistyle foam panels come in a range of thicknesses, and their selection is based on this parameter as well as the thickness of the house’s exterior walls and the material used to erect them.

Mineral wool is another fairly well-liked heat insulator, particularly for use in insulating wooden homes. It is simple to install on the walls and provides good insulation. It’s true that this material costs a little more than regular foam.

Finishing material closes off the exterior of any heater. Decorative linings, siding, various kinds of facade panels, or thermal insulation completed with a “wet facade” reinforced with a plaster layer are used, depending on the technology, for this purpose.

How can a wooden house’s walls be insulated? One option is to use premium mineral wool and extra decoration inspired by the ventilated facade idea. We go into great detail about using a mine for siding insulation on a wooden house in a different article on our website.

Insulation of attic ceiling and roofing

Heat exchangers, such as radiators and convectors, release heated air upwards. If there is insufficient thermal insulation in the overlap, the air quickly cools down when it comes into contact with the cold ceiling, wasting valuable energy on pointless ceiling heating. Therefore, adequate insulation is necessary for attic overlap.

The roof and ceilings’ efficient thermal insulation will cut down on heat loss.

Various materials that can be mounted between the overlapped beams from the inside as well as the top are used for this purpose. The same polystyrene, mineral wool, ecowata, sawdust, chips, etc., can be used. P.

The cost of a polystyrene foam heater

Polostyrol foam insulation

Sprayed polyurethane foam exhibits an excellent insulating effect and can be used to insulate roof slopes as well. The only issue with using it might be that it requires specific skills and special equipment for spraying, so you’ll need to bring in a team of experts.

Insulating attic overlap using sprayed-on polyurethane foam

Since installing the remaining thermal insulation materials won’t require any unfeasible technological operations, they can be used independently.

For a private home’s microclimate to be comfortable, roof insulation is essential. How to Insulate the Roof of a Wooden House: Readers will be directed to the pertinent article on our website by clicking this link.

Gender insulation

It is advised that the house’s floors be insulated as soon as possible during construction. Furthermore, wooden floors and concrete are both necessary for thermal insulation. In this case, there might be numerous options as well.

For wooden floors, for instance, mineral wool, polystyrene foam plates, or dry backfill (expanded clay) are used as insulation between the lags beneath the finish coating.

Mineral wool is used to insulate the wooden floor.

Subject to specific technological guidelines, the same materials may also be laid on a concrete base and then filled in with screed.

The "warm floors" system can be installed using either a concrete or wooden coating.

Heating the flooring using polystyrene The application of polystyrene foam panels is one technique for thermal insulation of floors. purchase their own floor insulation and screed foam. The information in the special article on our portal will be helpful.

Window replacement

Since the majority of thermal losses in a house happen through windows, replacing old windows is crucial to keeping the house warm while using less fuel.

Double-glazed windows of superior quality will make it comfortable to withstand even the harshest winter frosts.

The best option will be contemporary PVC windows with premium double-glazed windows of one kind or another, which will ensure that the warmth of the rooms is protected from the winter cold. These models virtually completely enclose the window opening, shielding the home from outside noise and heat loss as well.

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Other ways to reduce fuel consumption

Apart from ensuring that the building’s components are well-insulated, consider other options that could contribute to a reduction in fuel usage.

The following can be referred to as:

• Installation of convectors with directed circulation of heated air, in addition to heating from radiators. Convector devices are able to create heat curtains for windows and doors that will not allow cold air entering the room.
• Installation of modern equipment with the possibility of programming optimal heating modes in individual rooms of the house and in time. Some rooms are empty at a certain time of the day or even the days of the week, and it makes no sense to intensively heat the room when there is no one in it.
• Heating radiators in each of the rooms must be optimally placed and connected to increase the efficiency of their thermal return. It is advisable to equip them with thermostatic devices that will allow maintaining the desired temperature in the room.

Simple gadget that effectively conserves thermal energy

Convector costs

Convectors

It is advised to attach the foil of insulating material for each battery, which will act as a reflective screen, so that the heat from the radiator is directed toward the room and does not enter the wall.

You might be curious to learn more about the features of the prison complex’s insulation. What is essential knowledge regarding heating radiators? The kind of radiators that are used and how well they are installed inside the house affect how efficient the heating system is. There is a ton of useful information on these subjects in the article on our portal dedicated to Battery calculations for the square rooms.

• Finally, it is necessary to weigh well, whether the heating system is loaded too much to create excess heat. Experiment – it is possible that the rooms are too hot, and that without the manifestation of any feeling of discomfort, it is quite possible to reduce the temperature by 2 – 3 degrees. It seems, at first glance, a trifle, but on a scale of even one month, not to mention the entire heating season, can bring quite tangible savings.

At times, it may not be superfluous and judged soberly; however, is it overly sharpened in the home?

Since this is not an especially difficult process, as you can see from the examples and formulas of gas consumption for heating above, it is quite possible to calculate it independently. All that’s needed to achieve the desired outcome is to set aside some spare time and apply the suggested methodology. And he should use this as an opportunity to consider making his own house more energy-efficient.

Information about gas-free heating options for private homes might be of interest to you.

There is a fascinating video at the conclusion of the publication that offers advice on how to calculate gas consumption and take other energy-saving measures. Examine the geothermal heat pump using this link.

Video: gas consumption for heating and affordable measures to reduce it

Afanasyev Evgeny, Chief Editor

The publication’s author on February 2, 2016

The amount of gas needed to heat a 100-square-meter house depends on several factors, including the climate where you live, the insulation quality of your home, and the efficiency of your heating system. In colder climates, you"ll generally use more gas, while in milder regions, you"ll need less. Good insulation and energy-efficient windows can help reduce gas consumption. Additionally, a modern, well-maintained boiler or furnace will use less gas than an older, inefficient one. To estimate your gas usage, consider your local weather, how well your house retains heat, and the efficiency of your heating system. Investing in insulation and upgrading old heating equipment can lead to significant energy savings.

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