Propane powered mowers?

Discussion in 'Lawn Mowing' started by Eddie B, Mar 9, 2005.

  1. Eddie B

    Eddie B LawnSite Senior Member
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    Posts: 859

    Propane powered lawn mowers... anyone heard of them? It appears that Ransomes may have introduced a model, but I can't find it anywhere. Its obvious that they would operate cleaner and quieter, but are there any other advantages? When fuel prices rise would this be a cheaper route in the future?
     
  2. procut

    procut LawnSite Bronze Member
    Posts: 1,853

    Wow, thats really interesting, I'd like to see some info. about those as well.
     
  3. grass_cuttin_fool

    grass_cuttin_fool LawnSite Gold Member
    Posts: 3,503

    I cant remember the exact formula, but when switching a gasoline engine to propane there is approximately 25% power loss. The last time they filled my home propane heating tank there was only about 10 - 15 cents a gallon difference in propane and gasoline
     
  4. Eddie B

    Eddie B LawnSite Senior Member
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    Posts: 859

  5. Eddie B

    Eddie B LawnSite Senior Member
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    Posts: 859


    I read somewhere that single cylinder engines have less power loss, and usually retain about 90% in a conversion.
     
  6. captken

    captken LawnSite Bronze Member
    Posts: 1,707

    I was thinking the same thing when I posted yesterday to the thread about rising gasoline prices, I know about propane conversions for trucks. I wondered if any small engine manufacturer had a propane conversion kits to meet emissions requirments.
    The power loss would probably outweigh any fuel savings here.
     
  7. Precision

    Precision LawnSite Silver Member
    Posts: 2,995

    you think gasoline prices pogo around, Propane is much worse. Often much cheaper, but often not. And where are you going to convienently fill it?
     
  8. Eddie B

    Eddie B LawnSite Senior Member
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    Posts: 859

    There is a number of fill stations around here. I'm not familiar with pricing, or if there would be any advantages/disadvantages to using it other than the fact that it burns clean.
     
  9. procut

    procut LawnSite Bronze Member
    Posts: 1,853

    I once had a good discussion with a vetran auto teacher about using propane in vechicles. He said that there are many benifts. For example, the school district where he worked expirimented running propane in a few of their busses back in the early to mid 80s. After like 7 years and many miles, they pulled the heads off the bus engines and they looked nearly like new. Also, the oil stayed very clean, even after many miles. He also said expect a mile or two less per gallon when swithing to propane, along with slightly decreased performance. He also said the the biggest reason why propane was never widely used in cars/trucks was because an adaqute distibution system was never developed.
     
  10. PLM-1

    PLM-1 LawnSite Bronze Member
    Posts: 1,640

    Grasshopper had an LP mower in 2004. Never saw one in use tho. I believe it was a 25hp kohler.
     

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