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Estimated Energy Savings for St. Louis and Surrounding Areas. 

As equipment ages and deteriorates, so does the efficiency that was originally designed into the equipment.  The following costs and savings are estimates only and will vary based on equipment usage, maintenance, manufacture, exposure and original design criteria.

Annual Natural Gas Heating Costs

Heat Loss 55% AFUE 60% AFUE 65% AFUE 70% AFUE 80% AFUE 90% AFUE
30,000btu $623 $571 $527 $489 $428 $381
50,000btu $1,025 $940 $868 $806 $705 $627
60,000btu $1,226 $1,124 $1,038 $964 $844 $750
80,000btu $1,628 $1,492 $1,377 $1,279 $1,119 $995
90,000btu $1,829 $1,677 $1,548 $1,437 $1,257 $1,117
100,000btu $2,030 $1,861 $1,718 $1,596 $1,396 $1,241

Annual Air Conditioning Costs

Heat Gain 4SEER 6SEER 8SEER 10SEER 12SEER 14SEER 16SEER 18SEER 19SEER
24,000btu $636 $424 $318 $254 $212 $182 $159 $141 $134
30,000btu $795 $530 $397 $318 $265 $227 $199 $177 $16
36,000btu $954 $636 $477 $382 $318 $273 $238 $212 $201
42,000btu $1,113 $742 $556 $445 $371 $318 $278 $247 $234
48,000btu $1,272 $848 $636 $509 $424 $363 $318 $283 $268
60,000btu $1,590 $1,060 $795 $636 $530 $454 $397 $353 $335

As an example: A standard 36,000btu (3 ton) 8SEER air conditioner with an 80,000btu 80%AFUE furnace would have an annual cost of

Current annual cooling cost at a 6Seer rating    $636.00                                    Annual cooling cost at 12SEER for new ac unit    $318.00

Current annual heating cost at a 60%AFUE    $1,492.00                            Annual heating cost at 80% AFUE for new furnace    $1,119.00

Total annual cost for 20 year old system        $2,120.00                                                        Total annual cost for new system    $1,437.00

*Total annual savings $683.00 x 15 years for standard efficient life of a properly maintained system    $10,245.00

*These costs and savings are estimates only and will vary based on equipment usage, maintenance, manufacture, exposure and original design criteria.  A properly installed and maintained system is the first step in maximizing your investment to pay for itself.  The higher the efficiency of the unit, the higher the savings that may be available.  The best savings program is keeping your money in your bank.

Some simple problems that can rob money from your pocket in additional energy costs.

An undercharge air conditioner - up to 12% efficiency                    An overcharged air conditioner - up to 52% efficiency

Duct leakage - up to 22% efficiency       Improper filter - up to 29% efficiency        Dirty evap coil - up to 30% efficiency

Oversized system - up to 35% efficiency        Undersized system - up to 40% efficiency        Aged system - up to 50% efficiency

 

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All worked performed per Hirth Plumbing & Heating Company's "Terms and Conditions" in designated service areas of St. Clair, Madison, Monroe, Jersey and Clinton Counties of Illinois. Some services are restricted to St. Clair and Madison Counties only at this time to maintain the quality of service you expect and we are determined to provide.   Hirth Plumbing & Heating Company retains the right to accept or reject any work order or request received from this site based on availability of man power, materials and scope of work. 

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