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Stevanems Outdoor RODI mixing station project

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So, despite the fact that this is just at the 'thinking about it' design stage, I decided to begin a thread which I can add to as I go along.

I haven't decided entirely on where I'm going with this so please don't expect anything much just yet, but I thought I might as well discuss my thoughts on here and record my (no doubt slow) progress!

I am looking to create a place where all of my RODI production and mixing can take place, most probably at the side of the house underneath the car port where there is an outside tap.

I am aware of the issue of ambient temperatures and the possibility of freezing in winter, and so I plan to use some form of thermostatically controlled trace heating as used in air conditioning chilled water systems to prevent pipe work freezing. I won't be able to actually wrap the plastic pipe work as it could melt but I could somehow place it around the perimeter of the enclosure. An alternative to that would be to use one of the tube type heaters used in shop windows to prevent condensation.

Here is the enclosure which I am favouring at the moment. I have seen the cream ones with green lids but prefer this one...


Keter STORE-IT-OUT Midi Shed - YouTube

Mike

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Reply #1

What about one of these greenhouse heaters? On a thermostat it'd only come on when needed, and go off shortly after as you're only after keeping it above zero.



ELECTRIC TUBULAR GREENHOUSE TUBE HEATER GARAGE SHED KENNEL CONSERVATORY IP55 | eBay
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Steveanem

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Reply #2

That's brilliant @Mike that looks like the outdoor version of the Dimplex tube heaters I was looking at...





http://www.tlc-direct.co.uk/Products/DXECOT2.html?source=adwords&kw=&gclid=CK_5h-aF8cECFW_JtAod5B0AOA



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Last Edit: Aug 23, 2015 3:36:17 pm by Steveanem

Mike

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Reply #3

Ah, but the one you found has a built in thermostat, the one I linked to doesn't. So you'd need a temperature controller on it. The dimplex one could be set to minimum, I assume that's when it does "frost protection".

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Steveanem

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Reply #4

I guess so. It would kinda be indoors anyway inside the enclosure and under the car port.
Mind you that all depends on how long the car port stays, but if the extension goes ahead the whole thing will probably end up being shifted into the utility room.

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Reply #5

If you do go for the enclosure have you thought about having the water but on a loading trolley, so if needs be you can wheel it out.
I should really sort this out!!

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Steveanem

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Reply #6

If you do go for the enclosure have you thought about having the water but on a loading trolley, so if needs be you can wheel it out.

No I hadn't thought of that but it is a good idea thanks.

Mike

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Reply #7

Steve, thinking about this, you could either wait until it snows and see which part of your land doesn't freeze as it's got the sewer underneath it, or you could use an infrared thermometer to find out, but I think if you put the unit on top of where your sewer line is, the average temperature there is usually quite a reasonable amount above zero as any hot water (even a toilet flush is ambient room temp + the temp added by body temperature), plus baths, sinks for pots, washing machines, the amount of hot water that goes down the drains all sinks into the surrounding earth so it could be a free heater for it, just to keep it above zero.
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Steveanem

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Reply #8

Steve, thinking about this, you could either wait until it snows and see which part of your land doesn't freeze as it's got the sewer underneath it, or you could use an infrared thermometer to find out, but I think if you put the unit on top of where your sewer line is, the average temperature there is usually quite a reasonable amount above zero as any hot water (even a toilet flush is ambient room temp + the temp added by body temperature), plus baths, sinks for pots, washing machines, the amount of hot water that goes down the drains all sinks into the surrounding earth so it could be a free heater for it, just to keep it above zero.

Sounds like a plan. I might even put it in the garage yet rather than a plastic lean to. Still deciding.

HK_Fuey

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Reply #9

Did you get any further with this @Steveanem ?  I'm thinking of doing something similar

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