Buyers Guide

Energy-Efficient

Up to 30-50%
Cost Savings

Environmentally Friendly,
Non-Toxic System

No Harmful, Toxic
Refrigerants

Maximum Heating
Efficiency

Over 100% Average AFUE

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Understand energy ratings

When looking for energy-efficient heating and cooling systems, you will probably come across these terms. Learn what they mean before they appear:

Understand energy ratings

When looking for energy-efficient heating and cooling systems, you will probably come across these terms. Learn what they mean before they appear:

SEER ratings

SEER stands for seasonal energy efficiency ratio. This industry rating measures the averaged annual energy efficiency of your system operating over the entire cooling season. A higher SEER means your cooling system is more energy efficient.

EER ratings

EER stands for energy efficiency ratio expressed as the ratio of cooling capacity in British Thermal Units (or BTUs) per hour to electric power consumption in watts. This industry rating measures the energy efficiency of your air conditioner or heat pump cooling your home during an outdoor temperature of 95 F. A higher EER means your cooling system is more energy efficient.

HVAC Glossary

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AFUE ratings

AFUE stands for annual fuel utilization efficiency. This industry rating measures the averaged annual efficiency of a furnace. A higher AFUE means your heating system is more energy efficient.

HSPF ratings

HSPF stands for heating seasonal performance factor. This industry rating measures the averaged annual energy efficiency of your heat pump operating in heating mode during the fall and winter heating seasons. A higher HSPF means your heat pump is more energy efficient.