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mross

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mross last won the day on February 24 2017

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  1. mross

    INFRA RED UNDERFLOOR HEATING

    Thanks. I also complained to ASA and heard from them recently. I did some more reading and found that IR heaters are quite successful in high-ceiling warehouses but people still need to get the air temp up to 21C or so to be comfortable. Somewhere in their ads they say the panel heaters operate at a surface temperature of 22 to 24C. So they can't radiate any heat to a human body at 37C !!! They are just convectors.
  2. mross

    Starting Problems

    OP replied to a PM saying engine was running. It was an oil pipe, not a fuel pipe. I don't think he's been back since!
  3. mross

    Starting Problems

    Do you mean the decompressor? You don't need to touch this. Leave it in the running position. 20psi oil pressure is OK. Can you try the extra fuel? Lift the brass flap on the fuel rod and make sure the rod is free to move. It's normal to oil this daily.
  4. mross

    Starting Problems

    I do not understand this bit; what top?
  5. mross

    Anyone know...can an oil fired range run on Red Diesel?

    "Oil Used in Central Heating Just about all oil fired central heating used in Britain on a domestic level uses 28sec oil. This oil is sometimes referred to as Kerosene. The "sec" part of the oil description refers to seconds. This seconds part is used to define the viscosity (or thickness) of the oil. Originally this was measured by the time it takes for a ball bearing of a set size and diameter to pass through a set distance of the oil. 28sec oil burns very cleanly leaving minimal deposits such as smoke and soot on afterburn. 28sec oil can also be used in popular kitchen ranges like AGA. The other type of oil that can be used in a domestic situation is 35sec oil. You may be thinking, "how do I tell these two oil types apart?" There is quite an easy way of doing so by checking the colour of the oil: 28sec Oil = Yellow 35sec Oil = Red" http://www.diydoctor.org.uk/projects/centralheatingoil.htm So, the answer is probably 'yes'. But, as others say, 'get advice from the supplier'
  6. mross

    Best speed and course on a river

    In post 51, you said, "When Keeping Up posed the fuel question, he provided a formula in which the rate of consumption was proportional to speed." but he didn't, he said speed cubed.
  7. mross

    Best speed and course on a river

    So, are you admitting that you were mistaken? Your quote is exactly what I said!
  8. mross

    Best speed and course on a river

    He never said this! He said, ab initio, that consumption was proportional to RPM cubed. We are agreed that RPM is proportional to speed. ( roughly)
  9. mross

    Fit a washing machine or not..??

    What's the name of that contactor sensor thingy in a washing machine? It's used instead of a push-button on/off switch. Something like a true power device? This is so pernickety it can prevent the machine from switching on.
  10. mross

    Batteries and being off grid

    Ergs anyone?
  11. mross

    Batteries and being off grid

    Joules are not dependant on volts; 10MJ is 10MJ regardless of volts. Our meters already measure Joules but a calibrated in kWh. The meters measure true power, so they take account of volts amps and power factor.
  12. mross

    Batteries and being off grid

    some boats are 24V
  13. mross

    Batteries and being off grid

    kJ or MJ would be the most correct units to use for energy. As you know, 1 kWh is equal to 1,000 joules per second for one hour or 3,600,000 Joules = 3.6MJ. MJ's work equally for any voltage, unlike Amp-hours.
  14. mross

    Domestic water quality

    Were they definitely Brillo pads? Some people put scoureers in their kettles inhard water areas to trap the scale. But, generally, they were of stainless steel. I think Brillo pads would make the tea pink and soapy.
  15. mross

    Domestic water quality

    I have been reading up on Legionnaires all morning. Here is a source of balanced, evidence-based medical research which supports my contention that showers are not dangerous. It is now suggested that a common route to infection is aspiration, where fluid is accidentally taken into the lungs by people whose choking reflex is defective or absent. Smoking being a big risk factor. Where people caught LD in a hospital type setting they always found Legionella in the water system. In some countries it is mandatory to test nearby cooling towers for the bacterium and this is why cooling towers were implicated so often, test of water taps was not mandatory so the true source was often missed. There are many different species (50 plus) and nowadays the true source can be more readily identified. This is a copy of my January post in a similar thread.
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