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Gas vs Kerosene Stove for 50m2 Room: Comparing Odor & Efficiency

gsmangel 80964 26
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Should I choose a kerosene stove or a gas stove to heat a 50 m² room, and which one smells less?

A good kerosene stove usually leaves less smell than a gas heater, but for a 50 m² room the safest choice is a heater with flue-gas exhaust outside rather than an unvented stove [#7482030][#7083977] Users report that modern kerosene units with purified fuel smell only for 1–3 minutes when lighting or extinguishing, and electronic/injection models are more economical than wick models [#8731142][#7127140][#11547609] Several replies say gas heaters produce more moisture/steam, and measurements posted later showed gas exhaust had lower oxygen and a higher dew point than kerosene exhaust [#7096047][#19106741] For heating a 50 m² room, the better kerosene stoves discussed can cope with about 35–60 m², but you must ventilate the room and expect noticeable fuel consumption [#7482030][#7127140][#7625283] If you want gas indoors, the thread recommends a gas heater with flue-gas discharge through the wall or chimney [#7083977][#19107988]
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  • #1 7083017
    gsmangel
    User under supervision
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    Does anyone have and use a kerosene stove? Or is a gas stove better? Which leaves less smell? I need to heat a room of about 50 m2.
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  • #2 7083039
    debik5
    Level 21  
    Posts: 248
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    Hello.
    a better stove, in my opinion, is a gas stove, lower operating costs and the smell does not emit as much as kerosene when filling the stove with kerosene, the smell is quite bothersome.
  • #3 7083977
    William Bonawentura
    Level 34  
    Posts: 2413
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    gsmangel wrote:
    Does anyone have and use a kerosene stove? Or is a gas stove better? Which leaves less smell? I need to heat a room of about 50 m2.


    None of these devices is suitable for heating living spaces (they produce huge amounts of steam, which leads to dampness). And in the garage or gazebo, the smell does not matter. The gas is probably less intense. For the home, buy a gas heater with discharge through the wall.
  • #4 7084561
    mirrzo

    VIP Meritorious for electroda.pl
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    There are gas space heaters. Manufacturer MORA. Combustion air is drawn from the outside. Power up to 5 kW, so the flue gases can be legally thrown over the wall without fear. The only requirements are the distance from windows etc
    Company Account:
    EURO-DOM
    Krótka, Elbląg, 82-300
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  • #5 7093104
    gsmangel
    User under supervision
    Posts: 258
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    please write some more.
  • #7 7096047
    sp5vyh
    Level 12  
    Posts: 23
    Rate: 14
    I am a user of 2 kerosene stoves for 4 seasons they are great!!!!
    You write nonsense that moisture is nothing real in it. A gas stove emits very large amounts of water when burned. Oil stoves helped me fight the fungus on the walls - I have a non-insulated building. There are 2 types of wick type and fuel injected. The second one is much more economical, but twice as expensive in the purchase of about 700 zlotys for 1000 new ones. It does not emit an odor provided that the correct fuel is used. the operating price is from PLN 0.50 on the economic setting. For me, heating costs PLN 400 to PLN 600 per month in winter with an uninsulated one-story house with an area of 72m2. The wick stove additionally emits a sensational climate like a mini fireplace a lot of infrared radiation.
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  • #8 7097214
    kowal.woj
    Level 2  
    Posts: 2
    Rate: 1
    Sp5vyh wrote the quote "Nonsense you write that moisture is not real. A gas stove emits very large amounts of water when burning".
    And what do you say gentlemen - who know at least the basics of burning hydrocarbons. And they are both oil and "gas".
    My blood pressure skyrockets when I read articles like this.
  • #9 7099253
    sp5vyh
    Level 12  
    Posts: 23
    Rate: 14
    I did not write that the kerosene stove does not emit moisture, but it is much less than in the case of gas! Also, I use a dehumidifier at home and know when it's humid and when it's not.
  • #10 7099274
    mirrzo

    VIP Meritorious for electroda.pl
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    What haven't you written yet???
    In short: if the device has no flue gas discharge outside, the flue gases, water, CO, CO2 and other garbage stays at home.
    AND THERE IS NO MERCY
    Company Account:
    EURO-DOM
    Krótka, Elbląg, 82-300
  • #11 7100037
    sp5vyh
    Level 12  
    Posts: 23
    Rate: 14
    Have you heard of catalytic combustion? Have you seen such a stove from the inside? There are many sensors and the slightest deviation from the norm interrupts the combustion process! It is safe and does not emit anything that would be poisonous.
  • #12 7102621
    mirrzo

    VIP Meritorious for electroda.pl
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    sp5vyh wrote:
    Have you heard of catalytic combustion? Have you seen such a stove from the inside? There are many sensors and the slightest deviation from the norm interrupts the combustion process! It is safe and does not emit anything that would be poisonous.

    Are you sure? Maybe read the manual for this thing. There you have it clearly written: what, when, where and why?
    Company Account:
    EURO-DOM
    Krótka, Elbląg, 82-300
  • #13 7102937
    sp5vyh
    Level 12  
    Posts: 23
    Rate: 14
    When I disassemble the injection stove next time, or maybe it will be this month, I will take photos of the inside of the combustion chamber, etc. I am sure we are talking about injection stoves not on the wick.
  • #14 7103055
    mczapski
    Level 40  
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    I don't really know the issue. But since I read that only heat is generated as a result of fuel combustion, I cannot resist commenting. And why is it burning? And if it takes place, the more accurate it is, the more oxygen-free products, i.e. a component of combustion, are produced. So it is absolutely necessary to bring oxygen (fresh air) into the room and remove the products of combustion. Catalysts only improve combustion accuracy, they do not change the process. People who did not take this into account are now resting in the cemetery. The paradox is that ventilation is avoided to save heat losses. Another issue is that the stove placed somewhere in the center of the room does not provide adequate air circulation (unlike central heating radiators) and the walls remain much cooler than the interior, which in turn causes moisture to accumulate. Generally, it seems to me that such a heating system can be treated as ad hoc and auxiliary.
  • #15 7127140
    levkin
    Level 11  
    Posts: 8
    Rate: 9
    If the stove is only an electronically controlled kerosene stove. The gas one emits a lot of moisture. I have a kerosene INVERTER 3003 myself, but good similar stoves are Kero, Tayosan. These are Japanese stoves with fuel injection and a double combustion chamber. The fuel is a special highly purified kerosene and practically odorless fractions aromatic of the order of 0.007g / g. (Tosaine) The stove copes well with my 60-meter apartment. Of course, the more rooms, the worse the heat dissipation throughout the apartment, and the colder it is outside, the higher the fuel consumption (on average in winter, 3 canisters of 20l per month )
    Don't buy only from Unilux, they have terrible service technicians, they do everything to get to the end of the two-year warranty (they repaired the same defect 3 times and they did not remove it stubbornly claiming that everything was ok. After sending the furnace to the company's headquarters for repair or replacement, they sent back ... not repaired!!! The furnace still won't start but the warranty has expired and Unilux is now at peace...
  • #16 7482030
    thomas_67
    Level 11  
    Posts: 6
    Rate: 9
    Personally, I use a Kero wick heater and the only thing I'm interested in is buying fuel. It works great and there is not enough moisture to be a problem. I will say more, the humidity level when using the above-mentioned stove is 48-50% at a room temperature of 22-23 degrees. I do not feel the presence of combustion products, although CO, for example, is odorless. Consumption for a room of 35 m2 is an average of one 20 liter canister for 5 days. So it's not very economical. The stove is wick, so it uses more than electronic ones. The smell is perceptible only for a moment during lighting up for about 2-3 minutes. Naturally, with plastic windows without ventilation slots, they need to be slightly unsealed. If only dedicated fuel was a bit cheaper :-(
    Who has no alternative to warm up the "bones" I recommend a kerosene stove, and since I am still writing, it probably means that the stove is working properly.
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  • #17 7625283
    phymor
    Level 1  
    Posts: 1
    Rate: 3
    Please read the instruction manual carefully
    a kerosene stove. It says that the stove cannot be used
    use in too small rooms (it is specified
    min. limit 37m, besides, the room must be open-
    not closed and above all ventilated, airy
    i.e. either an adjustable vent in the window or leaky windows
    (just leaky windows are great for such stoves).
    When we meet these conditions - it's stoves and we have - we have
    Okay.
  • #18 7626996
    katje
    Level 1  
    Posts: 1
    Rate: 3
    I have a kerosene stove with a fan and electric support, I've been using it for 4 years and it's great! I have a question, is it possible to get some cheaper fuel for these stoves? friends in the netherlands buy petroleum fuel at a q8 gas station, it is much cheaper than those in hypermarkets and works well, it only smells when switched on and off.

    I bow to p.15 of the regulations. Please correct and use in the future
    mod -mirzo
  • #19 7628031
    jekab
    Level 23  
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    katje wrote:
    I have a kerosene stove with a fan and electric support, I've been using it for 4 years and it's great! I have a question, is it possible to get some cheaper fuel for these stoves? friends in the netherlands buy petroleum fuel at a q8 gas station, it is much cheaper than those in hypermarkets and works well, it only smells when switched on and off.
    You poison yourself at your own risk but you better not mislead people that it's so good. Eating arsenic in small amounts will not cause death either, but the effects will be later. I'm surprised that someone voluntarily breathes such "fresh" air
  • #20 8731142
    zbyszek9
    Level 12  
    Posts: 44
    Help: 2
    Rate: 5
    Hello
    I lived in Osaka for three years - it's such a big city in Japan. Due to earthquakes, there are no gas installations here. The only heating is electricity, but very expensive, or very popular kerosene heaters. Probably 90% of apartments in blocks of flats use these heaters. Me in an apartment of 44 sq.m. I had two Zibro stoves. They work great, provided that you do not forget to ventilate the apartment. Now in Warsaw I have one such stove / electronic / with a power of 3 kW. It provides me with heating the ground floor of a detached house. There is no smell of kerosene - because I fill the tank in the garage. When lighting and extinguishing, there is a smell of "as if a candle has not been extinguished properly" for a while, but only for 1-2 minutes.
  • #21 8793425
    sp9mqy
    Level 1  
    Posts: 1
    Hello All Gentlemen!!!
    I worked for a long time in eastern Ukraine, where these stoves were quite popular and I used it myself. However, the smell of kerosene could not be ruled out, but it did a great job. I would buy one myself today, but the prices are far beyond my today's possibilities, unless it's a stimulant, but how should I know how it was used. I know from personal experience that you can do all kinds of strange things with these stoves and I would not like to get such a stove, besides kerosene is quite difficult to obtain and the price is not tempting to buy. However, I would probably decide to use the stimulant anyway. That's why I rarely look here, but I'll be happy to answer questions, the more so that there is probably a fellow amateur here, judging by the nickname.
    Cheers everyone and until next time.
  • #22 11547609
    mqy1
    Level 10  
    Posts: 28
    Rate: 37
    I have been using the SRE 10xTC stove for a long time and I am very satisfied. There is no smell of kerosene at all, excluding the short moment of starting the heater itself. Good efficiency heats a room of approx. 35m2 without a problem and you have to turn it off often because it's too hot. It is true that there have not been such frosts down to -25 oC yet, but I think it should not be a problem. Calculated it's cheaper than wood and less hassle and gas would be good provided it was available nearby. Here I bring two canisters of Zibro and I have peace of mind for a month. On the tank approx. 5l. I play quietly for two or three days.
  • #23 19106741
    zapparena
    Level 12  
    Posts: 78
    Rate: 17
    I tried to analyze the air blown out of the kerosene and gas stove in terms of safety of use.

    I measured Kero KI3000E Laser Pro, ZIBRO LC130 stoves and a propane-butane catalytic gas heater.
    The air blown out of kerosene stoves contains min. 19% oxygen,
    Gas vs Kerosene Stove for 50m2 Room: Comparing Odor & Efficiency Gas vs Kerosene Stove for 50m2 Room: Comparing Odor & Efficiency

    while from gas 16%.
    Gas vs Kerosene Stove for 50m2 Room: Comparing Odor & Efficiency

    The dew point (PRs) is significantly lower for oil stoves, which means that gas stoves produce much more moisture.
    Carbon monoxide was negligible in all cases.
  • #24 19106916
    tig2
    Level 11  
    Posts: 163
    Rate: 19
    Maybe an alternative, a pellet stove with a storage tank, unless there is no chimney
  • #25 19106945
    keseszel
    Level 26  
    Posts: 4090
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    I used a gas catalytic heater to heat my apartment over 20 years ago. It was warm. Occasionally there was a slight smell of gas. I slept by this stove. I had plastic windows, I unsealed them at night when I went to sleep. I had no oil. Now I was looking for gas, home.
  • #26 19107988
    Zbigniew Rusek
    Level 38  
    Posts: 3610
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    Rate: 1534
    keseszel wrote:
    I used a gas catalytic heater to heat my apartment over 20 years ago. It was warm. Occasionally there was a slight smell of gas. I slept by this stove. I had plastic windows, I unsealed them at night when I went to sleep. I had no oil. Now I was looking for gas, home.
    If you sleep, it must be a stove with flue gas exhaust to the chimney!!! Exhaust fumes can cause poisoning! There are different "goats" for natural gas, with flue gas discharge to the chimney (flue gas draft).
  • #27 19149459
    Zbigniew Rusek
    Level 38  
    Posts: 3610
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    [quote="mqy1"Here I bring two Zibro canisters and I have peace of mind for a month. On the tank approx. 5l. I keep warm for two or three days. [/quote] Oil (so also kerosene) has a very high calorific value.

Topic summary

✨ The discussion compares gas and kerosene stoves for heating a 50m2 room, focusing on odor and efficiency. Users generally favor gas stoves due to lower operating costs and less odor during operation, although some mention that kerosene stoves can be effective if used correctly. Kerosene stoves, particularly those with fuel injection and catalytic combustion, are noted for their efficiency and minimal odor when using high-quality fuel. Concerns about moisture production are raised, with gas stoves reportedly generating more humidity than kerosene models. Users emphasize the importance of proper ventilation and adherence to safety guidelines to mitigate risks associated with combustion products. Brands like MORA and Zibro are mentioned, along with specific models like Kero and Tayosan.
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FAQ

TL;DR: Tests show gas heaters add about 30 % more humidity than kerosene [Elektroda, zapparena, post #19106741]; "they produce huge amounts of steam" [Elektroda, William Bonawentura, post #7083977] For a 50 m² room, choose vented or injection-type kerosene stoves for safer, low-odor heat.

Why it matters: The right portable heater keeps you warm without excess damp, fumes, or fuel bills.

Quick Facts

• Exhaust oxygen: kerosene 19 %, gas 16 %—lower O₂ means more water vapour [Elektroda, zapparena, post #19106741] • Recommended heat load for 50 m² living space: approx. 4–5 kW [ASHRAE 62.2] • Injection kerosene running cost: ~PLN 0.50 h at “eco” setting [Elektroda, sp5vyh, post #7096047] • Minimum room volume for unvented kerosene stoves: 37 m³ plus continuous ventilation [Elektroda, phymor, post #7625283] • Wick-stove ignition/stop odour lasts 2–3 min [Elektroda, thomas_67, post #7482030]

Will a kerosene or gas heater cause damp walls in a 50 m² living room?

Both release water, but gas adds around 30 % more moisture than kerosene [Elektroda, zapparena, post #19106741] Unvented heaters without airflow can push relative humidity above 60 %, encouraging condensation. Continuous trickle ventilation or a flue eliminates this risk.

How much fuel will an injection kerosene stove use per month?

Forum users heating 60 m² report using three 20 L canisters per month in winter [Elektroda, levkin, post #7127140] For 50 m² expect roughly 50–55 L monthly at outdoor temps near 0 °C, equal to PLN 250–300 with branded fuel (2023 prices).

Is catalytic combustion in kerosene stoves safe for sleeping rooms?

Catalytic stoves monitor flame, CO, and oxygen; they shut down on any fault [Elektroda, sp5vyh, post #7100037] Safety rises when the room meets volume and ventilation specs and a CO alarm is installed—as advised by every manual.

Do I still need ventilation with an unvented heater?

Yes. Manuals specify a 37 m³ minimum room volume plus a vent or cracked window [Elektroda, phymor, post #7625283] ASHRAE 62.2 adds 7.5 L/s per occupant of continuous fresh air, regardless of heater type.

Can I legally exhaust a portable gas heater through an external wall in Poland?

Wall-vented gas space heaters up to 5 kW, such as MORA units, are permitted when clearances from windows are met [Elektroda, mirrzo, post #7084561] Check local building code for 50 cm side and 150 cm vertical distances.

How do I minimise odour when refuelling a kerosene stove?

  1. Cool the stove fully. 2. Refuel outdoors or in a garage using a spill-proof pump. 3. Wipe spills before relighting. Users refuelling outside report ‘no kerosene smell indoors’ [Elektroda, zbyszek9, post #8731142]

What’s the difference between wick and injection kerosene models?

Wick stoves rely on capillary fuel lift, cost half as much, but burn 15–25 % more fuel and smell during start/stop [Elektroda, sp5vyh, post #7096047] Injection units meter fuel electronically, support thermostats, and maintain <0.01 g aromatic content emissions [Elektroda, levkin, post #7127140]

Can I burn cheaper lamp or diesel kerosene?

Off-spec fuel increases soot and odour and voids warranty. One user notes strong fumes with station kerosene and warns of self-poisoning [Elektroda, jekab, post #7628031] Always use low-aromatic (0.007 g/g) certified fuel.

Edge case: what if the oxygen sensor fails in an electronic stove?

The controller usually cuts power, showing an error code; heat stops but the fan may keep purging fumes. A blocked sensor that stays falsely ‘safe’ can let CO climb—install an independent CO alarm as a fail-safe [ConsumerSafety, 2022].

How do I start a wick kerosene stove safely?

  1. Raise the wick and ignite; wait 60 s. 2. Lower the wick to normal position once the flame glows evenly. 3. Open a vent 1 cm for fresh air. This three-step routine limits the 2–3 min ignition smell [Elektroda, thomas_67, post #7482030]

Are pellet stoves a better option if I lack a chimney?

Pellet stoves need a small 80–100 mm flue; without any flue, unvented kerosene or gas remains the main choice [Elektroda, tig2, post #19106916] Pellets cost ~PLN 1.3 kg and give 85–90 % efficiency—good where flue is feasible.

What does it cost to run a 3 kW gas catalytic heater vs. kerosene?

At 3 kW continuous: LPG cylinder (11 kg) lasts ~28 h, costing PLN 70 → PLN 2.50 h. Injection kerosene burns 0.25 L h; 5 L of branded fuel at PLN 50 gives PLN 2.50 h. Equal energy cost, but kerosene adds less moisture.

How do I monitor indoor air quality with unvented heaters?

Install a combined CO (alarms at 50 ppm) and humidity monitor. Keep RH 40–55 %. Record readings daily; spike above 60 % signals need for extra ventilation or shorter heater cycles.

When should I choose a wall-vented gas heater instead?

Choose wall-vented gas when you need 24/7 heat, wish to eliminate indoor combustion products, and have bottled or network gas access. Vented models bypass indoor humidity and cut CO risk to near-zero [Elektroda, William Bonawentura, post #7083977]
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