Green Collar Careers - Kitchen
the kitchen appliances are the second highest consumption group
typically accounting for about 27% of the total electric bill.
Just over half that (~14%) is just to power the refrigerator.
Short of installing new higher efficiency appliances like
convection ovens or high efficiency refrigerators or dishwashers there
are two easy ways to reduce the power consumption in just about every
Refrigerators are clearly the most reliable trouble-free appliance
built, but they are not maintenance free. Not even the best
defrost cycle can eliminate the maintenance requirement. Refrigerator
condenser coils tend to be naturally convective, meaning they donít
have a forced air cooling fan. With time coils tend to build up a
layer of dust. It is not unusual for a typical refrigerator to drop
efficiency at a rate of 5-8% per year. Take the average fridge thatís
been sitting in the same place for 5 years without a coil cleaning and
that could be adding 3% to the power bill.
In homes with pets refrigerator coils tend to load up much faster.
Pet dander and fur tends to have a static attraction to coils.
Refrigerators with seal leaks can sometimes double their power
requirement without anyone realizing it. A sure sign of a seal
leak is a region that's moist to the touch around the doors. The
moisture is from the humidity in the air condensing on the colder
metal surrounding the leak. Use a dry paper towel to swab the
refrigerator around the exterior of the seal region - if its dampened
at all the seal needs service.
Cleaning refrigerator coils are
pretty easy, a 10 minute job with a shopvac. The only tough part
is pulling the fridge out as the rollers may be bound up, so have a
couple of carpet sliders handy if needed. This is definitely a
service you'll want to perform for the customer.
To learn more about
cleaning refrigerator coils use the search tool below to look up
refrigerator condenser cleaning.
To learn more about cleaning refrigerator seals use the search tool
below to look up refrigerator gasket
Here is an area that nearly everyone overlooks. Recall from
that the second largest consumer of power is the kitchen, and that a
little over half of that is just to run the refrigerator. What arenít
included are the cooking and dishwasher loads that require additional
air conditioning to cool. A couple points to consider:
Boiling a pot of water for spaghetti typically adds about 6 kWh to the
air conditioning load. If the stove is equipped with range hood ducted
to the outside, the air conditioning load drops to between 3-4 kWh.
Much of the heat from an oven is directly converted to heat that loads
the air conditioner. Typically every 100į for every hour adds about 2
kWh load to the air conditioning.
Summertime thirst tends to fill the dishwasher with glasses faster
then plates and silverware. Do they really need to be washed at the
hottest water setting?
Despite the busy lives most families live a
little planning can go a long way in reducing the Kitchen Appliance
share of power consumption through the hottest quarter of the year
when the air condition is running. Following these few simple
guidelines will usually result in a minimum of a 5% annual reduction
of energy consumed:
1) During warmer months do as much outdoor cooking as possible. If you
have a burner on a gas grill, use that for dishes that require boiling
2) Avoid baking as much as possible during summer months. Substitute
microwave heating for oven heating wherever possible.
3) Have a couple of dedicated glasses for each family member and reuse
them through the day.
4) Rinse the dishes off before washing them, and lower the temperature
of the dishwasher for summer wash cycles.