Disclaimer

The tools and information on this site are for general education. They are not financial, legal, tax, career, or engineering advice.

Wages

Wage figures are BLS survey estimates for an occupation and an area. They are not a job offer or a guarantee of pay. Your pay depends on your employer, experience, hours, and other factors.

Rules and licensing

Regulations and licensing rules change. The EPA 608 checker and the license quotes reflect the official text on the date shown; always confirm with the EPA, the eCFR, and your state and local licensing agencies before you rely on them.

Sizing and energy estimates

The BTU calculator applies the ENERGY STAR room air conditioner chart. It is not a load calculation for central systems. SEER2 savings are estimates based on the inputs you enter; actual use depends on climate, installation, and how the system runs. A qualified professional should size and install equipment.

No warranty

We work to keep the information accurate, but it is provided as is, without warranties of any kind.