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Propane And Woodstone Inside Yurt

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Old 10-19-2015, 09:35 AM   #11
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Default Re: Propane and Woodstone inside Yurt

I use a compressor on my water systems. It isn't difficult. I use something like this with a rubber tip on the end:



(You can buy it here)

That way you can just stick it over the end of a pipe/line/fixture and blow air through it.
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Old 10-20-2015, 10:02 AM   #12
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Default Re: Propane and Woodstone inside Yurt

Residential supply pipes normally don't slope, so a gravity drained supply is very likely to have water at all low spots. If it is really below freezing while you are away you can expect ice blockage in the supply line. So, compressed air blow out is good practice. Just keep in mind the water residing in every p or j trap in the dwv system below every plumbing fixture keeps sewer gas out of the dwelling. That needs to stay put. If it were to freeze solid just thaw with hot water when you return. If the lines are plugged just add hot water and give it time to thaw.

Heat tape on the outside supply, pipe wrap, and pipes contained inside well insulated boxes are standard practice in house trailers. I did plenty of trailer redo and weatherization up in Wyoming decades ago. Weather there is WAAAY below freezing a couple months every year and frozen plumbing is the biggest problem.
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Old 10-20-2015, 05:03 PM   #13
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Default Re: Propane and Woodstone inside Yurt

For what it's worth I would put a ball valve. In the ground shutting off the water and place a second ball Valve on the yurt side. Then take a larger pipe that will fit over both valves. Put some stone underyour. Valves.take a piece of flatbread. Bolt it through the handles run it up throughout the pipe cut a plywood cover drill holes for the althread.now when you pull the althread on the main valve you turn the water off. Pull the second althread and the water drains off into the ground.
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Old 10-20-2015, 05:05 PM   #14
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Default Re: Propane and Woodstone inside Yurt

Dang spell check all thread not flat bread.
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Old 10-21-2015, 05:45 AM   #15
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Default Re: Propane and Woodstone inside Yurt

I have to admit, you totally stumped my on the flatbread thing. I thought it was some West Virginia construction terminology.
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Old 10-21-2015, 09:20 PM   #16
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Default Re: Propane and Woodstone inside Yurt

Flat bread lol
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Old 10-21-2015, 09:28 PM   #17
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Default Re: Propane and Woodstone inside Yurt

thanks for the flat bread clarification..thought you guys were some sort of weird preppers or something.... question, the heat tape, does it draw a lot of amps? I'm off grid, with about 2.3kw Solar and a 6kw standby generator.....feeding a bank of 12 batteries...propane feeds the hot air furnace that heats my cabin when I'm not there (i set the thermostat to 52 degrees) i plan to tap into this power source to power my yurt....thanks for paving the way for me with all your knowledge...
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Old 10-22-2015, 10:55 AM   #18
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Default Re: Propane and Woodstone inside Yurt

The heat tape I saw was plugged into standard 110v. The typical install had a drop cord plugged into a standard outlet mounted under the trailer. Very poor solution if power goes out as it frequently does in bad conditions. I don't know electrical usage but I would imagine that kind of current would deplete a battery bank. Just a guess though.

Off topic but a better system was foam pipe

insulation

wrapped around the supply pipes within an insulated enclosure. Foam backed aluminum trailer skirting was attached to a frame placed around the supply pipe under the trailer. That in conjunction with a full insulated trailer skirt solved the problem. Of course the heat tape was left in place but only came 'on' in very cold conditions. We screwed the panels in place for accessibility.

The absolute worst case is exposed pipe with heat tape wrapped around it and exposed to sub freezing conditions. Unfortunately I encountered that too often. If the power goes out the supply freezes in short order. You better believe this leads to a massive mess under a typical trailer that's just rolled into place and no furthur thought given to winter conditions. Only young men would work in such a mess.

Yurt on an elevated deck is similar situation. The time to think about designing the supply is before work has commenced. So good luck.
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Old 10-22-2015, 12:16 PM   #19
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Default Re: Propane and Woodstone inside Yurt

A quick search for plumbing heat tape leads to Frost King products, which are sold in various lengths. Power consumption is listed as 7 watts/ft (120 V). Like Bob said, it makes a lot of sense to insulate the pipes with the heat tape inside the

insulation

, even insulate/close off the underside of your platform (just watch out for critters nesting...). Without knowing how many feet of heat cable you need, the level of your insulation, or the temps at different times, any number for total power used will only be an estimate.

For instance, assume 20 ft of cable (20*7=140 watts). Assume a lot of insulation (around pipes & enclosed under yurt platform), figure the heat cable kicks on 2 hours (intermittently) a day: 140*2=280 watt*hours. Your solar system might be collecting 1200 watts/hr during the winter, figure 4 hours good light: 1200*4=4800 watt*hrs (insolation numbers suggest 1/3 of your summer output, neglecting clouds). So you'd use 280/4800 or 6% of your solar bank each day--easily sustainable (if nothing goes wrong, like snow covering your solar panels).

Now assume you didn't insulate the pipes or enclose the

yurt platform

and the heat cable runs 14 hrs/day. 140*14=1960 watt*hrs. Now you're using 41% of your solar bank each day. Or if it's going 24 hrs/day: 3360 watt*hrs, or 70% of your daily solar intake. Not much wiggle room there!

Again a lot of variables here (cable lengths, insulation levels, winter temps, winter solar output), but they give you a rough idea of what could be going on. If you decide to go with electric heat cables, that is.
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Old 10-22-2015, 12:47 PM   #20
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Default Re: Propane and Woodstone inside Yurt

thanks for the calculations....one of the things i am considering is a a radiant heat system powered by propane....been researching a Polaris Hotwater system...would have to run two systems, one direct for domestic hot water...and the second for radiant

heating

needs...supposedly a fairly efficient system..supplemented by a wood stove...
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