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Author Topic: 2 Hot water in series  (Read 4137 times)
Aussiecoach
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« Reply #15 on: August 31, 2011, 02:40:15 PM »

Hi

Thanx so much for the replies, gives me plenty to think about.

Cheerz
Glen
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Scott & Heather
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« Reply #16 on: August 31, 2011, 05:29:35 PM »

I'll chime in on this with our 30 gallon single element 110V water heater. Works great! Never run out of hot water.
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Scott & Heather
1984 MCI 9 6V92-turbo with 9 inch roof raise (SOLD)
1992 MCI 102C3 8v92-turbo with 8 inch roof raise CURRENT HOME
Click link for 900 photos of our 1st bus conversion:
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TomC
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« Reply #17 on: August 31, 2011, 11:15:47 PM »

Scotty-how long does it take to heat from cold? My 10 gal heats in about 45 minutes.  Good Luck, TomC
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Tom & Donna Christman. '77 AMGeneral 10240B; 8V-71TATAIC V730.
robertglines1
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« Reply #18 on: September 01, 2011, 05:03:44 AM »

fwiw: I use a 6 gal electric with a 2400watt element 2 of us shower after each other. washer runs great.  Off elect supply warm water for 24hrs (wash hands or quick shower). We do have remote switch inside to kick on in anticipation of high use. 20 minutes and it's at max and kicked off when on genset.
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Bob@Judy  98 XLE prevost with 3 slides --Home done---last one! SW INdiana
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« Reply #19 on: September 01, 2011, 05:58:29 AM »

  Thats cool Bob. Or hot, lol.

  I think we forget sometimes that the actual capacity of a hot water heater is greater than its physical capacity. As the hot comes out, cold comes in, mixes, and the element (gas or Elec) comes on, so 6 gal is likely closer to 10 actual, depending on water temps (in/out).

  Plus, most of us cant take a shower with 140F water, at least I cant, so as were adding cold at the tap, that 10 gal is now more likely 15-20 gallons of comfortable shower water. With a 2 GPM flow, thats easily a 10 minute shower.
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Scott & Heather
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« Reply #20 on: September 01, 2011, 06:23:09 AM »

Scotty-how long does it take to heat from cold? My 10 gal heats in about 45 minutes.  Good Luck, TomC

You know Tom, I've never timed it. We just had a guest here, and all three of us showered back-to-back and some hot water was used at the bathroom sink. We never ran out. I guess I've never had to wait. I have the temp control set at 140 so we're really using a small amount of super hot water mixed with a larger amount of cold. I have always wanted to test the temp of a nice hot shower (comfortable to human skin) and see how long the shower will run at that temp. Then I could time the water heater cycle. The spec says it's 7.5 gph recovery rate at a 90 degree rise. So with it set at 140, and incoming water temp at about 55 or so, we're thinking it must take an hour or two. But it really doesn't seem like it. It's a single element deal. What's the element wattage of yours Tom?
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Scott & Heather
1984 MCI 9 6V92-turbo with 9 inch roof raise (SOLD)
1992 MCI 102C3 8v92-turbo with 8 inch roof raise CURRENT HOME
Click link for 900 photos of our 1st bus conversion:
https://goo.gl/photos/GVtNRniG2RBXPuXW9
TomC
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« Reply #21 on: September 01, 2011, 02:31:35 PM »

Each of my 10gal water heaters has a 1500 watt element.  Good Luck, TomC
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Tom & Donna Christman. '77 AMGeneral 10240B; 8V-71TATAIC V730.
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