Water heater on all the time?

Discussion in 'Motorhome Chat' started by MHVirgins, Apr 20, 2014.

  1. MHVirgins

    MHVirgins

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    We're on a CL not that far from home this weekend, but wanted to ask a question about whether you only keep your water heaters on for a while and then switch it off?

    Bill went for a shower, I heard the water running and then I heard all sorts of pained noises:Eeek::swear::swear: $$***7&&&&!!!:Angry: angry voice shouts "Did you switch the water heater off"?

    Anyway, I had switched off the water heater off about two hours earlier, so Bill had some hot water then loads of cold water:Doh:
    So how long do you keep the water heater on for? All the time, or just as required? Answers on a postcard..........please!

    Just wondered because I usually switch the water heater off after an hour or so.

    p.s. I think Bill's got over the shock now:Laughing:

    Margaret
     
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  2. hilldweller

    hilldweller Funster Life Member

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    Depends. Gas or electric.

    Electric on EHU, it's just an immersion heater, leave it on if not metered.

    Gas, it's not as well lagged as your house tank so I turn off when not needed.
     
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  3. MHVirgins

    MHVirgins

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    Hi Brian, we're on EHU at this CL. I had switched the heater off as Bill had left it on overnight, I usually switch it off last thing.........but have been "advised" that it's better to leave it on:RollEyes: I didn't think the hot stuff would've gone so quickly.......he had only been in the shower long enough to get wet, switch off water, lather up, then switch on water:Eeek:
    Not a good start to the day

    Margaret:BigGrin:


     
  4. TheDogMan

    TheDogMan Funster

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    leave mine on all the time gas & ehu
     
  5. maz

    maz Funster

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    On hook-up, water heater left on all the time.

    On gas, water heater left on at 40 degrees and then switched up to 60 degrees about half an hour before a shower. Takes 5-10 mins for water to get to 60 from 40, then residual heat for 20 mins brings water temp up closer to 70 degrees. Lovely hot shower. :Smile:
     
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  6. hilldweller

    hilldweller Funster Life Member

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    Now that is another problem. The heater only heats a small water tank and there's not enough power to heat the water as fast as the shower uses it. So sooner rather than later he gets a cold shower.

    This is yet another example of how we have to adapt when in a MH and why I categorise sites by their showers. Two leaders: Grantown on Spey and Villasol. I suggest you try both ASAP.
     
  7. TPMM

    TPMM Funster

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    We leave electric water heater on all the time

    When we first had the motorhome we switched the electric water heater on when we had EHU and off when we left but then kept forgetting (the switch is in an inaccessible place under a dinette seat and behind where spare bedding lives and you have to do battle with the back rest/seat and seat belts to get at it). When nothing calamitous happened, we figured that it didn't matter, so we now leave it on. If we have hook up, we get hot water; if we are wild camping we use gas water heater - or just boil water for cooking and washing up if we're not too smelly!
     
  8. hilldweller

    hilldweller Funster Life Member

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    That might come back to bite you. One day you'll hook up and it will go "pop" but will you remember that it's the heater that is tripping the miserable 6A breaker or will you tear the place apart looking for a fault ?
     
  9. GJH

    GJH Funster Life Member

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    Our water heating is gas only and we have it on as necessary. During cold weather (when there is a risk of the auto dump valve acting) we will leave it on 40 deg. During summer (when there is no need to leave it on overnight) I switch it on about 15 minutes before I want my morning shower and there is enough hot water.
     
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  10. Jaws

    Jaws Funster Life Member

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    When we bought the van ( 2nd hand but only 18mnths old ) it only had a gas water heater.. Swapped that out straight away to duel feed for two reasons

    1) Did not want to be using gas all the time when on hook up

    2) If we are in a hurry for hot water I have both gas and electric heating it up.. Very quick that way :thumb:

    To answer the question.. The switch is on all the time we are on hook up.. And it uses very little...
    When down in Spain and limited to 10 units a day we never came CLOSE to using up our allowance
     
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  11. Baycott

    Baycott Funster

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    We leave it on all the time if on EHU and only when needed when using gas.
    You always pay extra for EHU so why not use it?:Wink:
     
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  12. MHVirgins

    MHVirgins

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    This is the first time he's had a cold shower, :Rofl1: we were two weeks near Edinburgh last month and no problems. In fact, we've never had this problem since we got the Dakota.......will be leaving it on from now on:RollEyes:

    I was just trying to save electricity, but as Baycott has said, we're paying for it anyway........at £10 per night it's great!:BigGrin:

    Margaret
     
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  13. Bellini

    Bellini Funster

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    Being pretty new to all this, we've only ever switched the water heater on when needed. I was under the impression this was the best thing for the heater element. Clearly not.

    The problem I've faced doing as above is that the water heater needs switched on well in advance for a shower. So in the morning, on it goes when I wake up (I'm usually awake very early) and it stays on for around 3 hours until we're all up, breakfasted and showered.

    And I've always worried about leaving the water heater on excessively as I thought it would get damaged. Three hours has been my self-imposed maximum so far. Maybe I should loosen up about it.

    But if on all the time then we can be a little better organised. Hadn't thought about using gas and EHU for quick heating either. Nice!:thumb:
     
  14. rosalan

    rosalan Funster

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    A shower at the start of the day is one of my most valued moments (not THE most valued moment) and to have the latter part of my shower in cold water could make for interesting reading.
    Alan
     
  15. lorger

    lorger Funster

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    I just have a cold shower look at all the money I save :Rofl1::Rofl1:
     
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  16. TheBig1

    TheBig1 Funster Life Member

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    3 reasons NOT to leave the electric heating on all the time

    The element is only good for a limited amount of hours use before it burns out. some go on for years, and some vans seem t eat them burning one out about every 12 months of use. the more you use it the quicker it will fail

    run out of water and if the overheat trip doesn't pop, the element will, welding it into the heater making repair difficult

    leave it turned on and if you plug into ehu to charge batteries at home, you are also wasting money heating water you wont use

    by all means put it on for a prolonged period when on ehu and you will use the water, but be aware there is a cost
     
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  17. peterc10

    peterc10 Funster

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    We leave our hot water on all the time we are pitched, whether we are on EHU or not. We do not feel civilised until we have had a shower in the morning.
     
  18. wasp

    wasp Funster

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    Most only hold about 10 litres so 2 gallons ish you have to be reasonably quick unless you got a Truma combi heater
     
  19. daisy mae

    daisy mae Read Only Funster

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    In caravan always leave the water heater on, unless water is running out do not have under floor tanks, in motor home will leave water heater on when on site.
     
  20. Reallyretired

    Reallyretired Funster

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    Our water heater is on all the time we are using the van, usually on gas but electric if on ehu. Gas (refillable) is pretty cheap and easily available.
    I doubt if the difference in fuel used is that great whether it's left on or switched on and off. Once its up to temperature the gas/electric element only goes on occasionally to maintain the temperature anyway.
     
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