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#1
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The author of the message from Insinkerator seems to be the
mathematically challenged one. He says .52 KWH per day. That is 520 watt hours in 12VDC boat speak. If the element is 75 watts it has to be on for almost 7 hours. That is 420 rather than 42 minutes. The Insinkerators are designed to deliver one cup of 190º water at a time. The temperature drops considerably after the third cup. To hot and to little for anything but instant coffee, grits or oatmeal. We have a different model on the kitchen sink that has what I assume is a coil but no real tank. It will put out 190º water as long as you keep it on but after a cup or two the electric meter gets dizzy. :-) Jeff Morris wrote: I think you slipped a digit there, Glenn. It says for standby the 75 Watt element is on 42 minutes a day. This comes out to be about 5 Amp-hours at 12 Volts. See my post for other issues. "Glenn Ashmore" wrote in message news:8Wdnb.103750$sp2.89267@lakeread04... FIne for shore power but think about that in a 12V battery operated environment. It takes 520 watt hours or 43 amp hours just to keep it on. Now you mix 3/1 with cold to get a usable 110º and use 4 gallons to do some dishes and a couple of short showers. That is a gallon (16 cups) of 190º water. Times 21 watt hours per cup is 336 more watt hours or 28 more amp hours for a total of 71 amp hours a day. That is an extra pair of group 27s and an hour of charging time or a 125 watt solar panel. Kinda expensive when you consider that hot water can be an essentially free byproduct of running the engine to charge your existing batteries for other uses. Conor Crowley wrote: The owner of scuba diving school once commented to me on how astounded he was regarding cost savings after replacing his water heater with small, individual, point-of-use water heaters in his shower stalls. For some reason this has always stuck with me, and now I noticed the following attractive item in the local h/w sto http://insinkerator.com/pdf/hc1100.PDF I'm interested in getting some feedback on what the 'gotchas' might be installing this on cruising sailboat. I suspect 190°F is probably scalding, but using both the hot and cold together is probably good enough for hand washing. In terms of power consumption, I contacted the company and received the response below: ..Conor Steamin' Hot Water Dispenser… Energy Consumption Information (For ½ gallon tanks) The original ISE Hot Water Dispenser was designed to provide " instant food temperature water" for the kitchen. Studies @ the Iowa State University Heat Transfer Laboratory have shown that when used as an aid in cooking and the preparation of all "instant foods" the hot water dispenser can save "over 80 percent normally used in cooking where hot water is required." It also saves water, since only the water used in cooking, without any waste. TYPICAL KITCHEN USE & COST The ½ gallon water tank is fully insulated with expanded polystyrene foam and uses a 75-watt element to heat the water. It is generally located under the sink directly below the decorative faucet. An automatic thermostat maintains the water in the tank @ 190°F, the ideal preparation of "instant foods". During normal use (when hot water is drawn from the faucet, colder water replaces it in the tank) the thermostat will turn the heating element "on" to maintain the 190°F temperature. The thermostat also turn the heater on periodically, even when no water is being used, to replace the heat lost to the air (a water heater does exactly the same thing. The cost of heating water in the Hot Water Dispenser is a combination of two factors: standby cost and dispensing cost. The standby cost is the power used to maintain the tank temperature even when there is no water being used. The dispensing cost is the power used to heat the water actually drawn from the faucet. The ISE standby cost is 0.52-kilowatt hours per 24 hours. This means that the heating element is only on 42 minutes for 24 hours. The ISE dispensing cost is approximately 0.021-kilowatt hours per 8oz cup of water used. The average daily usage of the dispenser is about 10-8oz cups. A typical cost for electricity is about 8 cents per kilowatt-hour. Standby cost 0.52 x 0.08 = $00.0416 (4 cents) Dispensing cost 0.21 x 10 x .08 = $00.0168 (less than 2 cents) THE TOTAL DAILY COST FOR THE DISPENSER IS: $00.0584 (less than 6 cents). -- Glenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com -- Glenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com |
#2
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So, I'm shopping eBay and spotted:
http://tinyurl.com/sl67 a href=http://tinyurl.com/sl67AOL Clicker/a (the above is a URL shrunk for line-wrapping -- the real URL is: http://cgi.ebay.com/ws/eBayISAPI.dll...m=25680475 76 Nifty, eh? For me, it's got a gizmo quotient almost off the scale. I've seen something similar if memory serves me, but that was decades ago.... Anyway, thought you might like looking. Happy cruising. J |
#3
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On Mon, 27 Oct 2003 16:26:03 -0600, "Janice"
wrote: So, I'm shopping eBay and spotted: http://tinyurl.com/sl67 a href=http://tinyurl.com/sl67AOL Clicker/a (the above is a URL shrunk for line-wrapping -- the real URL is: http://cgi.ebay.com/ws/eBayISAPI.dll...m=25680475 76 Nifty, eh? For me, it's got a gizmo quotient almost off the scale. I've seen something similar if memory serves me, but that was decades ago.... Anyway, thought you might like looking. Happy cruising. Thanks for posting. My wife and I enjoyed looking at them. I would guess they are probably bronze from the color. Rodney Myrvaagnes NYC J36 Gjo/a "Religious wisdom is to wisdom as military music is to music." |
#4
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You're right, they are FUBAR! On their home web site 4 of the 5 models are listed as 750
Watts, not 75! (They have one smaller unit at 500 Watts.) This is clearly FAR too much power to burn. In fact, the standby power alone would be more than enough to run a large fridge and freezer! "Glenn Ashmore" wrote in message news:rJgnb.103878$sp2.81624@lakeread04... The author of the message from Insinkerator seems to be the mathematically challenged one. He says .52 KWH per day. That is 520 watt hours in 12VDC boat speak. If the element is 75 watts it has to be on for almost 7 hours. That is 420 rather than 42 minutes. The Insinkerators are designed to deliver one cup of 190º water at a time. The temperature drops considerably after the third cup. To hot and to little for anything but instant coffee, grits or oatmeal. We have a different model on the kitchen sink that has what I assume is a coil but no real tank. It will put out 190º water as long as you keep it on but after a cup or two the electric meter gets dizzy. :-) Jeff Morris wrote: I think you slipped a digit there, Glenn. It says for standby the 75 Watt element is on 42 minutes a day. This comes out to be about 5 Amp-hours at 12 Volts. See my post for other issues. "Glenn Ashmore" wrote in message news:8Wdnb.103750$sp2.89267@lakeread04... FIne for shore power but think about that in a 12V battery operated environment. It takes 520 watt hours or 43 amp hours just to keep it on. Now you mix 3/1 with cold to get a usable 110º and use 4 gallons to do some dishes and a couple of short showers. That is a gallon (16 cups) of 190º water. Times 21 watt hours per cup is 336 more watt hours or 28 more amp hours for a total of 71 amp hours a day. That is an extra pair of group 27s and an hour of charging time or a 125 watt solar panel. Kinda expensive when you consider that hot water can be an essentially free byproduct of running the engine to charge your existing batteries for other uses. Conor Crowley wrote: The owner of scuba diving school once commented to me on how astounded he was regarding cost savings after replacing his water heater with small, individual, point-of-use water heaters in his shower stalls. For some reason this has always stuck with me, and now I noticed the following attractive item in the local h/w sto http://insinkerator.com/pdf/hc1100.PDF I'm interested in getting some feedback on what the 'gotchas' might be installing this on cruising sailboat. I suspect 190°F is probably scalding, but using both the hot and cold together is probably good enough for hand washing. In terms of power consumption, I contacted the company and received the response below: ..Conor Steamin' Hot Water Dispenser… Energy Consumption Information (For ½ gallon tanks) The original ISE Hot Water Dispenser was designed to provide " instant food temperature water" for the kitchen. Studies @ the Iowa State University Heat Transfer Laboratory have shown that when used as an aid in cooking and the preparation of all "instant foods" the hot water dispenser can save "over 80 percent normally used in cooking where hot water is required." It also saves water, since only the water used in cooking, without any waste. TYPICAL KITCHEN USE & COST The ½ gallon water tank is fully insulated with expanded polystyrene foam and uses a 75-watt element to heat the water. It is generally located under the sink directly below the decorative faucet. An automatic thermostat maintains the water in the tank @ 190°F, the ideal preparation of "instant foods". During normal use (when hot water is drawn from the faucet, colder water replaces it in the tank) the thermostat will turn the heating element "on" to maintain the 190°F temperature. The thermostat also turn the heater on periodically, even when no water is being used, to replace the heat lost to the air (a water heater does exactly the same thing. The cost of heating water in the Hot Water Dispenser is a combination of two factors: standby cost and dispensing cost. The standby cost is the power used to maintain the tank temperature even when there is no water being used. The dispensing cost is the power used to heat the water actually drawn from the faucet. The ISE standby cost is 0.52-kilowatt hours per 24 hours. This means that the heating element is only on 42 minutes for 24 hours. The ISE dispensing cost is approximately 0.021-kilowatt hours per 8oz cup of water used. The average daily usage of the dispenser is about 10-8oz cups. A typical cost for electricity is about 8 cents per kilowatt-hour. Standby cost 0.52 x 0.08 = $00.0416 (4 cents) Dispensing cost 0.21 x 10 x .08 = $00.0168 (less than 2 cents) THE TOTAL DAILY COST FOR THE DISPENSER IS: $00.0584 (less than 6 cents). -- Glenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com -- Glenn Ashmore I'm building a 45' cutter in strip/composite. Watch my progress (or lack there of) at: http://www.rutuonline.com Shameless Commercial Division: http://www.spade-anchor-us.com |
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