View Single Post
  #40   Report Post  
Posted to alt.home.repair
ransley ransley is offline
external usenet poster
 
Posts: 4,926
Default CFLs use more energy than indicated

On Apr 11, 10:23*am, wrote:
On Apr 11, 10:07*am, Larry The Snake Guy wrote:

On Apr 10, 8:25 pm, wrote:


The heat pump is OUTSIDE. * You'd have to stand there to get any
radiant heat from it. And anything that uses electricity is NOT
necessarily a pretty good radiant heater or even a radiant heater at
all. *The common electric water heater being one good example, which
heats via conduction.


My mistake, but ideally if you were using the heat pump for heating
only, you could make the system more efficient by putting the pump
inside.


Would make not a wit of differemce because the motor/compressor is a
sealed unit. *Heat loss in the motor is directly transfered to the
refrigerant.

Probably too much of a noise issue for most people though.


An electric water heater heats the water by induction,


Not induction, conduction.

but when the
water is not being used most of that heat eventually radiates out into
the home. It's not an effective radiant heater, but still an efficient
one when you're not carrying that heat away for other uses.


Most water heaters are located in an unfinished basement or garage.
How much of the heat that escapes from the water heater do you think
will go towards heating the living space? * With concrete all around
that's at ground temp, even in the case of a basement, I'd say it's
going to be not much. * Which makes it very inefficient.

Even if the water heater is in the living space, typically it's in a
utility closet with an outside wall and frequently also contains a
furnace, which is sucking in combustion air. * Bye bye to most of the
heat from the water heater there too.


Actualy most of the lost energy goes up the chimney in regular Ng
tanks. Thats why most are no better than 60 EF.