by The Wild Center
Question by Psssst! wanna send a letter?: What’s the difference between a proper Solar water heating panels?
and household radiators painted black and housed in a cloche. Being a tight git I built my Solar water heating system for £180. It’s three 1.2m x .6m panels, a pump and a controller. It gives me tons of hot water on a sunny day and does a bit even when it’s not sunny. So whats the difference? Why do people spend £7000 on solar water heating systems?
Best answer:
Answer by BMSfirst,
good job, it really isnt that difficult, but most people [...]
by sielju
Question by Fynnagin F: what colors should tubes be for a solar water heating system?
Solar energy can be used to heat water for a pool by running water through a series of pipes or tubes. What colour should the pipes be? What other features should this system have to improve its efficiency?
Best answer:
Answer by fill YerbootsMatt black unless you are in a seasonally very sunny area. The black absorbs heat very well, so potentially it could get hot enough to boil the water if you are in an occasionally very hot climate. Some areas use pale colours [...]
by r_neches
Question by jay: The Sanchez household is about to install solar panels to reduce the cost of heating their house. ?
In order to know how much the solar panels help, they record their consumption of natural gas before the panels are installed. Gas consumption is higher in cold weather, so the relationship between outside temperature and gas consumption is important. Here are data for 12 consecutive months:
Degree days193300081127463834
Gas used3221.610.70.71.63.15.17.776.1
Use your calculator or software: the correlation between degree days and overall gas usd is about
(Use decimal notation. Give your answer to three decimal places.)
What are the values [...]
Question by The Wicker Man: how energy efficient is microwave heating compared to gas heating?
So, for any amount of water, it is more efficient to heat it with microwaves, right?
Best answer:
Answer by Robin the energy saverMicrowaves convert about 65% of their electrical energy into heat. A gas oven converts 100% of its chemical energy into heat. So you might think a gas oven would be more efficient. In fact this is rarely the case.
A microwave oven only heats objects in the oven that contain water. So if you put a potato into a microwave, you are only using energy to [...]
Question by Chris: What’s the best meathod to heat a outdoor 8×4 pool? heat pump or solar heating?
I was about to get a solar heating system installed then one of my friends suggested me to use a heat pump to heat the pool instead of solar heating. My question is which system heats the pool faster and does the Heat pump work well in Cold weather (eg. around 20-30 degrees Celsius)
Best answer:
Answer by Jerry BridgewaterWell solar heating only works with nice direct sun light so they are very limited.
If you can afford to get both then do it. The [...]
Question by Bill F: What is the most efficient heating source for radiant floor heating?
I am replacing a twenty year old steam boiler and steam radiators to a radiant floor system. I am so confused by the number of choices to heat the water for this system. I could use a traditional boiler, a tankless hot water heater, or even a wall hung combination boiler and tankless hot water system. What is the most efficient system that will offer the lowest heating costs? I can use either oil or propane. Natural gas is not available in my area. My house [...]
