The Realgy Energy Saver
Realgy Energy Services has a server room that generates plenty of heat from the hardware housed there. Accordingly, we have to use air conditioners to prevent damage to the hardware. This past winter, Mathew Sudowski, Director of Sales, came up with a way for Realgy Energy Services to recover the heat lost by the air conditioner exhaust from the Realgy server room. This heat recovery helped to increase the efficiency of the furnace. Because the furnace draws in air from the two upper levels as well as the basement where the server room and air conditioner are located, this plan worked perfectly.
Mathew Sudowski, Director of Sales
With the help of a local HVAC company, Realgy was able to retrofit the air conditioner exhaust, and reduce the workload of the Realgy office furnace. This retrofit also helped to save the company money over the winter season.
View of the AC exhaust retrofit
To find out how a natural gas furnace works check out this article “How a Natural Gas Furnace Works”
How a Natural Gas Furnace Works
Natural gas forced-air furnaces are by far the most popular method of heating in North America, mainly because they can distribute heated air from a central furnace to every room of the house and they can also be used in conjunction with a central AC unit.
The basic components of a forced-air system include:
- An air handler, which may be either a stand-alone blower cabinet used with a heat pump or a forced-air furnace that includes a blower
- A means of heating air, such as natural gas-fueled burners
- Ductwork for delivering cold air to the heater via a return
- Ductwork for sending heated air back to rooms via some vents
- A thermostat for turning the system on and off
A natural gas furnace reacts to changes in a room’s temperature. When the air temperature in the room drops below the thermostat’s set temperature, it alerts the furnace. Cold air is then drawn from the room’s return through ductwork into the cold air return and through an air filter. The burner ignites to heat the air as it moves through the furnace. The circulating fan helps the warmed air circulate through the ductwork and back into the room via vents. The cycle continues until the set comfort level is reached at which point the thermostat turns the system off until the next time the temperature drops.
Sources:
Wikipedia, “Furnace”
Buzzl, “How does a Gas Furnace Work“
Are you ready for the cold weather?
Now is the time to start winterizing your home. Here are a few tips brought to you by Realgy Energy Services to help you prepare for the colder weather and increase your energy efficiency.
Just like your air conditioner, your furnace should also get an annual check-up from a certified HVAC technician before the heating season. Keeping your furnace and ducts clean, lubricated and properly adjusted will reduce energy use and save you money.
At the very least, make sure to clean or replace the air filter on your furnace before starting it for the first time and check it every month. A dirty filter will restrict airflow and increase energy use and even possibly lead to premature failure of the unit.
While you are checking on your furnace, don’t overlook the hot water heater; if it is warm to the touch, it needs more insulation. Consider installing a water heater blanket or jacket insulation around the tank which will help prevent heat loss; be sure to leave the air intake vent uncovered. You should also insulate hot water pipes to further reduce heat loss.
Insulating your hot water heater and pipes will decrease your energy consumption and increase your savings; as a bonus this will even allow you to turn down the water temperature to around 110-120 degrees Fahrenheit.
If you have a fireplace always keep the damper closed when not in use to prevent heat loss. Ensure the chimney is clean and soot free; you should also cover the top of the chimney with a protective cap or screen to keep out unwanted debris and small animals.
Take the time now to seal cracks and crevices around windows and doors using caulk or weather-stripping. If you have old windows and are not planning on replacing them before the cold weather, consider using a shrink plastic kit to keep hot air in and cold air out.
Use these simple tips to get your home ready for the winter chill and increase your energy savings.
Sources:
EnergySavers.org, Stay Warm, Save Money
U.S. Department of Energy; Energy Efficiency and Renewable energy, Thermostats and Control Systems
Energy Star, Winter Energy Savers