Florida Energy Code Component Comparisons

 

The following Table is a simple comparison on the net effect of changing one component on the Central Baseline house on the e-ratio. The software used was the current code compliance software (FlaRES 2004 v.4.50). As each house will be different, the table is a broad overview of component changes that could be expected and is not intended to reflect the actual effect on any one house with the exception of the example Central Region Baseline house in the software.  Actual results may vary and may be affected by the law of diminishing returns when changing multiple components.

                                                      

  Component  Baseline      Measure Change E-ratio

Ceiling Insulation

R30

R19

1.03

Ceiling Insulation

R30

R38

.99

Ceiling Insulation/w Radiant Barrier

R30

R19/RB

.98

Ceiling Insulation/w Radiant Barrier

R30

R30/RB

.96

Windows

Double, U-Factor=.75 SHGC=.4

Double, U-Factor=.87 SHGC=.55

(Metal Frame)

1.03

Windows

Double, U-Factor=.75 SHGC=.4

Double, U-Factor=.35 SHGC=.35

(Wood or Vinyl Frame)

.95

Windows

Double, U-Factor=.75 SHGC=.4

Single, Clear

1.15

Windows

Double, U-Factor=.75 SHGC=.4

Single, Tint

1.11

Cooling

SEER 13

SEER 14

.97

Cooling

SEER 13

SEER 15

.94

Cooling

SEER 13

SEER 16

.91

Ceiling Fan Credit

N/A

Yes

.98

Programmable Thermostat

N/A

Yes

.97

Heating

Electric Heat Pump 7.7 HSPF

Electric Resistance

1.18

Heating

Electric Heat Pump 7.7 HSPF

Electric Heat Pump   8.4 HSPF

.99

Ducts

Air handler in Garage

Supply and Returns in Unconditioned Space

Air handler in Interior

Supply and Returns in Unconditioned Space

.94

Ducts

Air handler in Garage

Supply and Returns in Unconditioned Space

Air handler in Attic

Supply and Returns in Unconditioned Space

1.06

Ducts

Air handler in Garage

Supply and Returns in Unconditioned Space

Air handler in Interior

Supply and Returns in Conditioned Space

.90

Factory Sealed Air Handler

N/A

Yes

.97

Leak Free Duct

Credit

N/A

Yes

.92

Hot Water

Electric Resistance

EF .92

Electric Resistance

EF .94

.99

Hot Water

Electric Resistance

EF .92

Solar with Tank

EF. 2.9

.74

Heat Recovery (AC)

N/A

Yes

.94

Heat Recovery (HP)

N/A

Yes

.92