Re: Building a closet for dust collector
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Yes ¨C exactly. It¡¯s rare that there¡¯s a free lunch in life, but if you want the heat your tool makes at the same time that you want the function of whatever your tool does, then this is one of those rare situations where you get 2 for the
price of 1.
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TJ,
So you are saying that in fact an electric motor is MORE efficient than an electric heater, because you get the same heat output AS WELL as the benefit of the motor having performed work...well this is news to me...
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On Sat, 23 May 2020, 18:38 TJ Cornish, < tj@...> wrote:
If all you are considering is the heat output of the machine and not the financial costs of wear and tear on motors, belts, bearings, etc., then yes, an electric power tool is just
as efficient at making heat as a heater is, with the benefit that it can multitask and perform useful work while it and the work done makes the heat.
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There is confusion here between ¡°efficiency¡± ¨C how much energy input is required to perform a task, and energy conservation ¨C in other words, where does all the electrical energy
go. Efficiency is great ¨C yes, let¡¯s find ways to do useful things with less energy input, whether that is punching metal instead of milling, using thin kerf saw blades instead of rebate heads to remove large chunks of material, etc. (I¡¯m not advocating for
any particular procedure, obviously there are many reasons why you may do an operation in a way that requires more electrical power but gives advantages in safety, speed, finish quality, etc.). My one and only point in all of this typing is simply:
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Whatever energy you pull from the wall ¨C whether continuous or intermittent usage, use it fast, use it slow, ALL of that energy that is not stored in another form ¨C chemically in
a battery, mechanically in a flywheel or by lifting something ¨C ALL of that energy will heat your space.
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Back to efficiency ¨C if you are using your power tools anyway, the heat they make is free as it is a waste product of the purpose of the tool. In that sense, your power tools are
absolutely the cheapest heat you can get (assuming you need to run them to do something). If your heat demands exceed your power tool usage patterns, then electric heat of any form ¨C running your tools more often or electric heat ¨C is probably not the most
efficient or cost-effective way to heat your shop.? Right now natural gas is by far the cheapest source of heat energy.
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TJ and others,
My simple mind may have missed the point of these theories, but are you telling me that it is as efficient(financially) to heat my workshop with a running machine as it is with
an electric heater, as far as units on my electric meter is concerned?
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