Cool Heat Mechanical Systems, LLC - Cooling Operating Cost Comparison

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●	Bigger is Not Better
●	Biting the 90 AFUE Bullet
●	Cooling Operating Cost Comparison
●	Energy Saving Tips
●	Frequently Asked Questions
●	Glossary of Terms
●	Plumbing & Pipefitting Industry Guide

●	Heat and Cool Efficiently
●	Key Cooling Terms
●	Maintenance Checklist
●	Properly Sized Equipment
●	Seven Hazards of Carbon Monoxide
●	Make Air Conditioners More Efficient
●	When is it Time to Replace?

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COOLING OPERATING COST COMPARISON WORKSHEET

* Yearly Operating Hours = 800
* Per Kw Electricity = $0.07

1.5

EFFICIENCY

6 8 10 12 14 16 18

COST/HOUR

0.20 0.15 0.12 0.10 0.09 0.08 0.07

COST/YEAR

$161 $121 $96 $80 $69 $61 $54

MIN. CFM REQ.

600

2.0

EFFICIENCY

6 8 10 12 14 16 18

COST/HOUR

0.27 0.20 0.16 0.13 0.12 0.10 0.09

COST/YEAR

$214 $161 $129 $107 $92 $81 $72

MIN. CFM REQ.

800

2.5

EFFICIENCY

6 8 10 12 14 16 18

COST/HOUR

0.34 0.25 0.20 0.17 0.14 0.13 0.11

COST/YEAR

$268 $201 $161 $134 $115 $102 $90

MIN. CFM REQ.

1,000

3.0

EFFICIENCY

6 8 10 12 14 16 18

COST/HOUR

0.40 0.30 0.24 0.20 0.17 0.15 0.13

COST/YEAR

$322 $241 $193 $161 $138 $122 $108

MIN. CFM REQ.

1,200

3.5

EFFICIENCY

6 8 10 12 14 16 18

COST/HOUR

0.47 0.35 0.28 0.23 0.20 0.18 0.16

COST/YEAR

$375 $281 $225 $188 $161 $143 $126

MIN. CFM REQ.

1,400

4.0

EFFICIENCY

6 8 10 12 14 16 18

COST/HOUR

0.54 0.40 0.32 0.27 0.23 0.20 0.18

COST/YEAR

$429 $322 $257 $214 $184 $163 $144

MIN. CFM REQ.

1,600

5.0

EFFICIENCY

6 8 10 12 14 16 18

COST/HOUR

0.67 0.50 0.40 0.34 0.29 0.25 0.22

COST/YEAR

$536 $402 $322 $268 $230 $204 $180

MIN. CFM REQ.

2,000

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