How long does it last with a lot of pellets?
It is estimated an average consumption of 15kg of pellets for 12 hours, that is a whole bag which, on average, for pellets of fair quality, has a price of around 3,50 euros.
The consumption of a common pellet boiler is about 0,25 kg / hour, for each kW of power. Once this data and the heat output of the stove are known, it is possible to calculate its consumption. For example, a 10 kW thermal pellet stove consumes about 2,5 kg / hour of pellets.
The advice, therefore, for those who have the possibility of storing fuel for the whole winter, if they have not already done so to take advantage of the usually cheaper summer prices, is to buy in this period an entire pallet of pellets, which usually includes 65-70 bags of 15 kg.
Electricity consumption and duration of the bags of pellets
On average it is necessary to burn a 15 kg bag of pellets to heat your home for about 10-12 hours, so it is always advisable to stock up a little and, if you have the opportunity and the space, store it at home.
A low cost, compared to the prices on the market, could indicate a low caloric yield, risking to consume a greater quantity of pellets and spending the same price: a fair price is 30-32 euros per quintal, with peaks of 50 euros per quintal, based on the quantity purchased, and 200-230 euros per ton if ...
It is estimated an average consumption of 15 kg of pellets for 12 hours of operation. A 15 kg sack of decent quality pellets has a price of around € 3,50.
On average, the price of pellets is around 30-32 euros per quintal, with peaks of 50 euros per quintal, based on the quantity purchased, and 200-230 euros per ton if the pellets are purchased in pallets (70 bags of 15 Kg).
We said: a cubic meter of methane produces 10 Kwh of power, against the 4,8 Kwh of a kg of pellets. Therefore, to produce the same heat generated by a cubic meter of methane, 2 kg of pellets are needed. By consuming 15 kg of pellets per day, we save 7,2 cubic meters of methane.
For example, the consumption of a 20 kW boiler is 5 kg / hour, equal to 7 kg / dmc, so a 10 cubic meter silo provides a 20 kW boiler with an autonomy of 1500 hours, equal to 2 continuous months.
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One pallet usually contains 70 bags of 15 kg pellets.
For those who are not too accustomed to mathematics, we immediately reveal what the final result is: to heat a house of 100 square meters in an area with medium and not particularly cold insulation, a pellet stove of at least 10 KW is required.
To calculate the consumption of your pellet stove, you need to multiply the surface of your house by the height, and then multiply the result you get by the thermal coefficient (35 in temperate zones, 40 for colder ones).
While a pellet stove consumes 80 kW of electricity per year even in “Ecostop” mode, a gas boiler consumes 500 kWh on average annually, since its circulator is not connected in two out of three cases to a room thermostat.
According to the AIEL simulation, to heat a house of about 100 square meters with a pellet stove you spend about 390 euros per year, compared to 792 euros in the case of a diesel boiler and 1.398 euros in the case of LPG.
The small boilers (20 Kw) heat approximately 100 square meters while the 35 kW pellet boilers heat a portion of the room equal to 200 square meters.
Compare 205 offers for Pellet Bags 15kg starting from € 15,00
On average, the price of pellets is around € 30-32 per quintal, with peaks of € 50 per quintal, based on the quantity purchased, we consider € 200/230 per ton if the pellets are purchased in pallets (70 bags of 15 Kg).
Calculating the right amount of pellets to buy is not very simple. On average, if we consider (by way of example) an apartment of about 80/90 square meters and an 8 kWh stove lit for about 12 hours a day on an annual amount of about 120/130 cold days, about 150 bags of 15 kg l 'one.
Dip a handful of pellets in a glass of water and if the pellet goes to the bottom and the water does not cloud it means that you have purchased a good product: it is compact, does not crumble and has no dust residues.
In this article we have seen that to heat a house of 100 square meters with a minimum of insulation and which is not in the high mountains, you need a 12 kW pellet stove, preferably ducted, so that the heat reaches all the rooms. of the house evenly.
As a rule, most modern boiler models have minimum power values ranging between 23 and 24 kW. Advice: it must be said that, for houses with a floor area up to 150 square meters, a boiler with a power of 24 kw is sufficient.