I plan on building a PVC solar water heater to connect with the water heater up stairs. The solar heater will sit lower than it. Would I still need a pump?

Is it there any license restrict to sell and installed solar water heater?

What is a material for the pipe of a Solar Water Heater?

I meant the pipe that facilitates the convection heat transfer, not the pipe that leads the water down from the Solar Water Heater to my shower (although they might be the same).

Thanks in advance. =)

PS. Please do explain why.
Let’s say we ignore the price, is there any chance with steel?

What would be the take between a black-painted copper and polished steel?

A student suspects that there is a relationship between the amount of sunny weather in a given state and the amount of solar energy used by its inhabitants. In order to find out if this idea is correct, the student will need which information for each state? Help please? i don’t get it haha. its for science hw
answer options:

The efficiency of solar technology used in that state
The location and type of solar cells used in that state
The percentage of days that have enough sunlight to power a solar water heater
The number of sunny days per year and the amount of solar power used per year

Husband is in the military. We have a energy tax credit coming our way because we installed a solar water heater.
He is filed as single no dependents for taxes from his work so that IRS takes out more than what they need every month.
Now since he is in the military, we get a lot of our taxes back.

So how would the tax credit work if we don’t actually get the credit with a check?
We can’t use it for taxes because we get the money back anyway? We don’t pay state taxes at our residence, so we can’t use it for that.

We do have the First-Time Homebuyers credit that we start paying back this coming up tax year (TY2010).
Can we apply it to the homebuyers ‘credit’ (which is actually a loan; for 2008 homebuyers )?

Then we heard that we can get it as a grant?
What does that mean and how does it work?
(I googled grant, but it doesn’t make sense to me…)

We are lost to how we can use the energy tax credit cause you don’t get it in the form of a check.

…would call IRS, but they’re closed right now.

Thank You in advanced.

My science fair is indoors and i have to find a heating resource which will heat up my solar water heater. Any Suggestions?

I’m a freshmen in high school. I’m in all honors classes, and work very, very hard to keep my grades at a minimal of 93. I’m usually up until twelve in order to get all of my homework done.
Most of it is due to my Earth/ Environmental Science Teacher. In short, I loathe him.
Nobody likes him. I’m not exaggerating. I thought the upperclassmen were exaggerating when they said he was awful, and didn’t listen. HE. IS. AWFUL. I’ve never had a teacher so cynical and sadistic. I’ve maintained an A in his class all semester (which is very hard to do).
We recently had a project, which was worth HALF of our final exam grade, which I’m not exempt from.
I built a solar water heater, and spent a minimal of fourteen hours on the entire thing. I worked so hard on it, and stressed for it, and I thought that I had followed the rubric to a satisfactory level.

I got a 74.

I am upset, and so is my mother. My friend, who is biracial like I am, also got a 74 and built a solar powered device as well. She also worked ridiculously hard. So now, my mom, her mom, my friend, and I are going to speak with him tomorrow, and I have no idea how to defend myself. This is because while I THOUGHT I did this correctly, as i looked at the rubric he gave back, I realize many of my mistakes. I just feel so frustrated, and I need a better grade. The 74 is going to kill me.

I need tips on how I can persuade him to boost my grade.
Oh, and about the comment on my race. I don’t necessarily believe that he is racist or sexist or anything of the like, but my mom seems to think so.

On a typical winter day the water inside the solar water heater absorbs 2.0 x 10^6J of energy from the Sun every 30 minutes.
If the heater contains 80kg of water at 15°C and the specific heat capacity of water is 4200J/kg°C, calculate the final temperature of the water after 30 minutes.

Am I supposed to use Q=mcT, and if yes, how do I use it cos I’ve tried but the answer didn’t make sense :/

Should you install a solar water heater? The average home has a 200 liter (50-60 gallon) hot-water tank, which is effectively drained and replenished three times per day. Assume that the entering tap water is 13 degrees C and is heated to 55 degrees C. Given an average energy from sunlight of 1.53 kJ/cm2 per day, how large would the collection area (in m2 of a solar water heater need to be if its efficiency is 20%? Assume that the price of a solar collector is 5/m2. How much would it cost to install this hot water system?

Calculate energy required to heat 1 mL of water. Convert this to tank volume. area=heat required/(solar heat/area)/eff. Installation cost = area x solar collector cost.

I’m getting 34×10^6 m^2
12×10^9 dollars to install

Apparently this is wrong but I can’t find my mistakes. Anyone?
I have 4180 J/Liter giving 837,200 J to heat up 200 Liters of water 1 degree C. I multiplied that by 3 because it’s drained and filled 3 times a day giving me 2,511,600J per day. I multiplied that by 42 (55-13) giving me 105×10^6J per day, altering for the change in temperature of the tank. I took that and converted it to kJ = 105×10^3kJ per day. Took 1.53kJ/cm^2 and divided by 1000 to get m^2.

105×10^3/(.0153kJ/m^2)—–> Divided by .20 for efficiency factor and got 34×10^6 m^2

34×10^6 m^2 x 375 to get 12×10^9 dollars

I know this is wrong, but I just can’t seem to find the mistake.

We’ve been considering purchasing a solar water heater to save on ridiculous oil costs (we already use a pellet stove to heat our house but need oil for our hot water). We live in New England and have roughly a 1500 sq ft home. Does anyone have informnation we can use to buy the right solar water heater, such as types, pirces, backup systems, etc.