Welcome to the
Home Energy Optimizer
Learn More About your Home's Energy Use!

The Home Energy Optimizer is free and will take less than 10 minutes to complete.

Enter your Zip Code:
Year house was built:
Type of Heating Equipment

Type of Heating Equipment Help

Central gas furnace
Powered by natural gas, central furnaces are connected to a duct system which distributes the hot air around the house.
Room (through-the-wall) gas furnace
Powered by natural gas, these furnaces are not typically connected to a duct system. They generally heat the room they are in and occasionally, one or two surrounding rooms.
Propane (LPG) furnace
Powered by propane gas, a central furnace is connected to a duct system which distributes the hot air around the house.
Oil furnace
Powered by fuel oil, a central furnace is connected to a duct system which distributes the hot air around the house.
Electric furnace
Powered by electricity, a central furnace is connected to a duct system which distributes the hot air around the house.
Electric heat pump
Provides heating in the winter and air conditioning in the summer through a reverse refrigeration cycle. Use this system type for both air-source and ground-source heat pumps and refer to the Efficiency Value tool tip for equipment efficiency input guidance.
Electric baseboard heater
Electric resistance produces heat for a radiator system running along the baseboard of rooms in the house.
Gas boiler
Natural gas heats water, which is pumped through radiators or pipes in the foundation, heating the house. Boilers can be combined with the hot water system to provide hot water as well as space heating.
Oil boiler
Fuel oil is used to heat water, which is pumped through radiators or pipes in the foundation, heating the house. Boilers can be combined with the hot water system, providing hot water as well as space heating.
Year Heating System Installed:
Insulation level of attic floor:

Ceiling Insulation Help

R-value is measure of the resistance of insulating material to heat transfer. The higher the R-value number, the more effective the insulation. You can use the inches guidelines to estimate the R-value of the attic floor insulation for fiberglass and similar insulations, or calculate the R-value by identifying the insulation type in the table below and multiplying the number of inches of insulation present by the R-value per inch.

Attic or ceiling Type:

Attic or Ceiling Type Help

Unconditioned Attic
This is the most common: bare rafters with insulation in between, often used as extra storage space.
Conditioned Attic
Conditioned attics have heating or cooling, and the walls, floor and ceiling are finished with sheetrock. Generally, conditioned attics are used as part of the living area of the house.
Cathedral ceiling
A cathedral ceiling extends the living space up to the roof rafters. The interior ceiling is formed by the underside of the roof rafters and there is no attic above the living space. Cathedral ceilings can be slanted or flat, depending on the pitch of the roof above. Often, major beams are left exposed for aesthetic reasons.

If different parts of the home have different attic/ceiling types, select the type that overlies the largest floor area. For example, if a minor part of a single room (say the entryway/living room area) has a cathedral ceiling and the rest of your home is a two-story dwelling with an unconditioned attic, select the “unconditioned attic” option.

Type of Thermostat:
Type of cooling system:

Type of Cooling Equipment Help

None
Select this option if the only cooling equipment is portable or whole house fans.
Central air conditioner
The most common type is a split system, with indoor coils delivering cool air to the duct system of the house, and an outdoor unit exhausting heat removed from the house. Central air conditioners are sized to cool the entire house.
Room air conditioner
Except for small apartments, room air conditioners are not considered a whole-house air conditioning system. Consisting of a single box installed in a wall cutout or window, room air conditioners generally provide cooling for one large or two smaller rooms.
Electric heat pump
Provides heating in the winter and air conditioning in the summer through a reverse refrigeration cycle. Use this system type for both air-source and ground-source heat pumps and refer to the Efficiency Value tool tip for equipment efficiency input guidance.
Year cooling system installed:
Water heater fuel:
Water heater year purchased:
Primary refrigerator year purchased:
Second refrigerator year purchased:

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