Solar powered motorhome question.

[Mike90250]

To keep an RV warm, a couple 55 gallon steel barrels, of water, hooked to a solar powered pump & 50W PV. Heat the water with roof top water panels. 100 gallons of warm water will keep the inside from freezing at night. It may not make it 65f all night, but that's what long-johns are for.

Or look up the Solar Shed, if you have a plot of land you own, build a heat collector/storage there, hook up to your RV.

http://www.builditsolar.com/Projects/SpaceHeating/SolarShed/solarshed.htm

Water based, hot water heating panels, circulating to heat house in Montana, DIY.

Also, folks have buried a septic tank, insulated it, and lined it, for hot water storage.

[nternal]

To keep an RV warm, a couple 55 gallon steel barrels, of water, hooked to a solar powered pump & 50W PV. Heat the water with roof top water panels. 100 gallons of warm water will keep the inside from freezing at night. It may not make it 65f all night, but that's what long-johns are for.

Now that's an idea. In that case using evacuated tube heat collectors might work well to provide the heated water in a winter climate. I found these at: http://www.solarheatingcanada.com/

[Naptown]

Now that's an idea. In that case using evacuated tube heat collectors might work well to provide the heated water in a winter climate. I found these at: http://www.solarheatingcanada.com/

Use a minimum of 60 tubes. Don't forget to provide for freeze protection by using a glycol solution enough for the record low where you intend to stay.
Check if the motor home can withstand another 900 pounds concentrated in two fairly small areas and you have room for them inside.

[russ]

Now that's an idea. In that case using evacuated tube heat collectors might work well to provide the heated water in a winter climate. I found these at: http://www.solarheatingcanada.com/

Look for some place that doesn't rely on BS as a sales gimmick - I mentioned before that site is long on green blather and questionable statements.

PS - Don't post the link again please.

[nternal]

Look for some place that doesn't rely on BS as a sales gimmick - I mentioned before that site is long on green blather and questionable statements.

PS - Don't post the link again please.

I have a physics degree and, just because I'm using the expertise of others to guide me in an area that I don't know anything about, that doesn't make me an idiot. You say the technology I asked about is garbage and at least one other (seemingly informed) person was knowledgeable about evacuated tube technology and it's alternatives. I am just supposed to take your word for it that it's BS because you decreed it?

[russ]

I have a physics degree and, just because I'm using the expertise of others to guide me in an area that I don't know anything about, that doesn't make me an idiot. You say the technology I asked about is garbage and at least one other (seemingly informed) person was knowledgeable about evacuated tube technology and it's alternatives. I am just supposed to take your word for it that it's BS because you decreed it?

Evacuated tube tech is perfectly fine and I have never said otherwise - the way they try to present it is green.

Take whatever you choose to take - makes zero difference to me.

From the site, ''Even on a cold winter day, each solar collector will produce plenty of hot water in a short period of time. Their ability to generate heat in the dead of winter means that they perform even better in the summer.''

Both statements depend on the customer having no idea. The first statement is wild and the second wrong. Evacuated tubes outperform flat plate types in cloudy or cold weather - in full sun flat plates types are more efficient. I could list many more examples.

Look at http://www.solar-rating.org/default.htm for data for both types.