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Home heating based on Webasto.

carot 99075 45
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  • Home heating based on Webasto.



    Hello. Some time ago, I rented a small apartment. It had one major problem - heating. Electric or gas heaters were out of the question.
    After much searching, I found webasto on eBay. It comes from the Rover 75 car and is powered by diesel fuel.
    A dedicated fuel pump works with the webast, and the heat exchanger is a radiator from Nissan Almera.
    An interesting element is the power supply. After many attempts to create a suitable power supply (the Webasto turns off when the voltage drops to 10.5V), the choice fell on the PlayStation3 power supply. It works great in its new application. To prevent the radiator fans from running at full speed all the time, a simple PWM controller was installed. Thanks to this, I can smoothly adjust the speed. The heating is quite quiet, exhaust gases escape outside, and the fuel tank is located in another room. A small worktop is usually mounted above the entire heating system, so it is practically invisible.
    The stove itself also controls the radiator fans. The activation signal goes to the temperature sensor mounted in the T-connector at the Webast output. It turns on only after reaching 40*C. It, in turn, turns on the relay in the power supply and supplies current to the PWM controller that controls the fans. A very clever solution, the heating blows warm air, not cold.



    Prices:
    Webasto Thermo Top Z/C/D - £90
    Nissan Almera radiator - £5
    Fuel pump - £60
    Power supply - £7
    Thermostat - £5
    Hoses, cables, parts for the regulator, relays, clamps, etc. - £15

    The average fuel consumption, when heating 3-4 hours a day, is about 5-6 liters of diesel fuel per week. Average £7-8 :D

    The only plans are to make an external intake of air for combustion, and remote starting via SMS, but that will happen in the future :)

    Home heating based on Webasto. Home heating based on Webasto. Home heating based on Webasto. Home heating based on Webasto. Home heating based on Webasto.

    Cool? Ranking DIY
    About Author
    carot
    Level 26  
    Offline 
    carot wrote 1084 posts with rating 642, helped 41 times. Live in city Londyn. Been with us since 2011 year.
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  • #2 13196221
    _JF_
    Level 23  
    Webasto consumes the most electricity when heating a candle, but this process burned my ATX power supply :D

    Is the control of the Webasto itself based on the original controller or is it solved in some other way? I mean additional heating with the light on in the absence of flame

    I`m also thinking about connecting it in the workshop.

    How much water is in the system? and how long does it take to heat it to 40*
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  • #3 13196518
    carot
    Level 26  
    kolbjan wrote:
    What can`t a Pole in exile come up with... And it`s no surprise that such an opinion abroad and not another one...

    I know the opinion about us abroad, mainly that we do everything well, quickly and thoroughly. And we like to drink. I was counting on constructive criticism, not complaints that it`s ugly. But I will draw a flower on the radiator especially for you.
    _JF_ wrote:
    Webasto consumes the most electricity when heating a candle, but this process burned my ATX power supply

    When heating, the candle consumes 17A :D
    _JF_ wrote:
    Is the control of the Webasto itself based on the original controller or is it solved in some other way? I mean additional heating with the light on in the absence of flame

    For safety reasons, the original driver was retained. Not a photocell, but a glow plug that is also a flame sensor.
    _JF_ wrote:
    How much water is in the system? and how long does it take to heat it to 40*

    3.5 liters and heats to 40*C in about 50 seconds.
  • #4 13196656
    Grigori310891
    Level 23  
    carot wrote:
    Hello. Some time ago, I rented a small apartment
    How many rooms do you heat with it? Do I understand that only 1 room; ) I`m mainly concerned about the square footage
    carot wrote:
    The average fuel consumption, when heating 3-4 hours a day, is about 5-6 liters of diesel fuel per week. Average £7-8
    what temperatures outside?
    Have you compared which will be cheaper in fuel: gas, electric, Webasto? Cool project!
  • #5 13196736
    carot
    Level 26  
    Grigori310891 wrote:
    How many rooms do you heat with it? Do I understand that only 1 room; ) I`m mainly concerned about the square footage

    1 room, kitchen and bathroom. The entire apartment measures approx. 40 m2 in total.
    Grigori310891 wrote:
    what temperatures outside?

    from -5 to 12, as in the UK in winter.
    Grigori310891 wrote:
    Have you compared what will be cheaper in fuel, gas, electric,
    webasto ? Cool project!

    Initially, I wanted to buy an ordinary boiler, but I can`t have electric heating (contract), gas heating is out of the question because I simply don`t like gas, and with the price of oil 1.39 per liter, it was placed on Webast :)
    kowal011 wrote:
    I thought my friend who heats his garage with webas from his car was crazy.

    In Poland, I heated my garage with an old Scirocco with DDR :D
  • #6 13196746
    bartek 8118
    Level 18  
    You can`t see it in the photos, but I would also install an expansion tank and maybe think about replacing the water with coolant. Coming back to the fact that a Pole is capable, others are simply jealous that he can do anything out of nothing. History has taught us this - it is one of the few advantages of communism, wars and partitions. And we should respect and cherish it, because the newest generation, which does not know communism, can no longer hold a hammer in its hand and thinks that everything will be done for it. Of course, this does not apply to everyone, but the group of such people is constantly growing.
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  • #7 13196925
    LoLek85
    Level 28  
    My friend carot Can you estimate the fuel consumption of such a heating set?
  • #8 13196966
    Frog_Qmak
    Level 25  
    Cool DIY :) I have a question, where do you discharge the exhaust gases and how noisy is the whole thing? With and without air supply?
  • #9 13196969
    carot
    Level 26  
    bartek 8118 wrote:
    You can`t see it in the photos, but I would also install an expansion tank and maybe think about replacing the water with coolant

    I decided on a radiator from Almera because it has a built-in reservoir and the system is filled with water with antifreeze added.
    LoLek85 wrote:
    Buddy, carot, are you able to estimate approximately the combustion of such a heating set?

    0.3-0.4 liters per hour of operation.
  • #10 13197082
    Karol966
    Level 31  
    carot wrote:
    0.3-0.4 liters per hour of operation.


    It`s probably not that cheap after all. Taking into account the price of diesel fuel in Poland, the average is about PLN 5.5/l per hour PLN 1.65 - 2.2 / hour of work

    At the price of electricity around PLN 0.60/kWh, it costs from 2.75 - 3.6 kW/h at this radiator power (2.75 up to almost 4 kW). A quick Google search shows that the heater`s power of approximately 2.8 kW is enough to heat a room to almost 30 m² - so with this higher threshold corresponding to 0.4 l/h of Webast operation, you would have a warm apartment of 40 m². (yes, I know you didn`t agree - I`m only talking about cost-effectiveness calculations because I`ve always liked the topic of webasted heating and I`ve always wanted to do it, but I don`t have anything to do with it yet ;) That`s why I`m even a little jealous that you had something to use such heating for :D

    PS. in the calculations I did not take into account the power consumption of the power supply, which is probably about 200-300 W.
    PS2. Correct my calculations if I calculated something wrong - it`s late ;)
  • #11 13197096
    carot
    Level 26  
    Yes, you are right, but there is one basic mistake. Here, oil costs 1.39 per liter. I`d prefer electric too, but oh well. People on barges here, even though they have free electricity, also have webast for heating :)
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  • #12 13197159
    i_wiki
    Level 24  
    If you have a marine nearby, check if they have red diesel, in my area it`s 1f each, so it would be even cheaper.
  • #13 13197177
    carot
    Level 26  
    I just don`t know if it is. I`m looking for red, but everywhere you have to order at least 500 liters.
  • #14 13197730
    wilczasty
    Level 19  
    carot wrote:
    Yes, you are right, but there is one basic mistake. Here, oil costs 1.39 per liter. I`d prefer electric too, but oh well. People on barges here, even though they have free electricity, also have webast for heating :)

    1.39 is the price for red diesel, I understand? Is it any different from heating oil? As far as I know, red diesel can be refueled in tractors and refrigerated trucks.

    The car will also drive smoothly, but it is easy to check what you are driving during the inspection.
  • #15 13198477
    M. S.
    Level 34  
    In Poland, you buy a liquefied gas cylinder and a suitable ceramic heater. A bit damp, but at least it`s cheaper and doesn`t smell like oil.
  • #16 13198576
    jumpee
    Level 13  
    If you have already decided to heat with diesel oil, you have not thought about using a forced-air heater - less electricity and oil consumption, much quieter operation and fewer toys around
  • #17 13198633
    carot
    Level 26  
    wilczasty wrote:
    1.39 is the price for red diesel, I understand?

    No, for regular diesel fuel.

    M. S. wrote:
    A bit damp, but at least it`s cheaper and doesn`t smell like oil.

    This is what humidity is all about. And no, it doesn`t smell like oil.

    jumpee wrote:
    If you have already decided to heat with diesel oil, you have not thought about using a forced-air heater - less electricity and oil consumption, much quieter operation and fewer toys around

    I thought, but the prices of blown and water ones differ significantly.
  • #18 13198698
    jumpee
    Level 13  
    yes, and this is an argument, I once had the same problem as you, I installed a storage furnace, but the current was mmmm. There are no cheap solutions in winter, although I saw a kerosene stove, but the price is also high, greetings and warm evenings by the fireplace.
  • #19 13199212
    polarczn
    Level 16  
    For me, heating makes no sense. It would be better to use natural gas heating if you have access to it.
  • #20 13199248
    carot
    Level 26  
    If I had access to natural gas, don`t you think I would use it instead of using Webast for heating? We don`t have access to it, we only have propane from a cylinder, and anyway, oil is safer :)
  • #21 13199484
    EAndrzej
    Level 21  
    Hello

    carot wrote:
    The only plans are to make an external intake of air for combustion, and remote starting via SMS, but that will happen in the future


    You can put off texting until "someday", but without an external source of air for combustion, "someday" may turn into leaving and transferring all your plans to the other world, but there is no need for heating there.
  • #22 13199636
    carot
    Level 26  
    EAndrzej wrote:
    without external intake of air for combustion

    I doubt that anything could go back through the intake, but just in case, I have already ordered an elbow and a filter, so the day after tomorrow at the latest, air will be taken in from the outside.
  • #23 13200271
    Frog_Qmak
    Level 25  
    Frog_Qmak wrote:
    where do you discharge exhaust gases?

    I mean, a hole in the window and sealing, some kind of chimney?
  • #24 13200764
    zibi581
    Level 22  
    And it`s worth tidying up the cables - it will be even safer.
  • #25 13200770
    carot
    Level 26  
    Frog_Qmak wrote:
    I mean, a hole in the window and sealing, some kind of chimney?


    A hole in the wall, sealing and a diesel chimney pointing downwards.
  • #26 13201292
    Lansi
    Level 11  
    Hmmm - interesting idea - especially with these additional improvements - PWM, playstation power supply - valuable comments, - I was already wondering about it... - by the way - don`t you know how powerful the Webasto you bought is? - because I can`t find it anywhere... - I can use one from a truck - in the highest gear it has 18.5 kW - and it burns more - I would like to compare it with yours - because Diesel is not the cheapest either - but it`s still something .... - and as someone already mentioned - it would be good to have a CO sensor - just in case something happens... the devil doesn`t sleep...
  • #27 13201391
    carot
    Level 26  
    Lansi wrote:
    You don`t know how powerful the Webasto you bought is? - because I can`t find it anywhere... - I can use one from a truck - it has 18.5 kW in the highest gear - and burns more


    Mine is a Webasto from Rover 75. Model: 98570B, it consumes about 0.3-0.4 liters per hour of operation. It has a power of 5KW. Yours is much stronger, but it also takes a much shorter time to maintain the temperature. And oil from trucks still costs 2.50/liter...


    Lansi wrote:
    and as someone already mentioned - it would be good to have a CO sensor - just in case something happens... the devil doesn`t sleep...

    At the beginning I had a small gas cartridge heater, so the sensor has been there for quite a long time ;)
  • #28 13201653
    DJ MHz
    Level 25  
    Hello.
    Interesting topic, I was interested in using it to heat the garage.

    Can such a Webasto be adapted to burn used oil? Or a mixture of used oil + diesel? And one more thing, will heating oil also work? :) . It`s always something cheaper.
  • #29 13201654
    maliniak80
    Level 17  
    Dear Carot, could you tell us more or less how long it takes for your stove to start up, i.e. from giving the start impulse to igniting the flame, and what more or less does the start-up and extinguishing phase look like? I am currently at the stage of building a complete controller for the Thermo Top V stove and I am collecting all information about it. At what frequency does your fuel pump work at full power?
  • #30 13201668
    LoLek85
    Level 28  
    My friend maliniak80 find VW training books, there is a lot about additional heaters. If you can`t find it, contact me and I`ll send it to you.
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Topic summary

The discussion revolves around the use of a Webasto heating system sourced from a Rover 75 car, adapted for home heating in a small apartment. The system operates on diesel fuel, utilizing a dedicated fuel pump and a Nissan Almera radiator as a heat exchanger. The user faced challenges with power supply, ultimately using a PlayStation 3 power supply to meet the voltage requirements. The heating system is noted for its quiet operation and external exhaust, with a fuel consumption of approximately 0.3-0.4 liters per hour. Participants discuss the efficiency and cost-effectiveness of using Webasto compared to electric and gas heating, as well as safety considerations regarding carbon monoxide and proper ventilation. Additional modifications, such as a PWM controller for fan speed and the potential use of an expansion tank, are also mentioned.
Summary generated by the language model.
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