Experience a “Greener” Home with Our Energy Efficient HVAC Products.

Going “green” has never been easier. The innovations you’ll find in our energy efficient HVAC products will help you create a more comfortable and environmentally-friendly home. No matter what equipment you choose, the products available at Klaus & Sons Heating & Air Conditioning in Upland offer superb efficiency. Our products will help you contribute to a cleaner environment and can even reduce your monthly utility bills.

Find out how Lennox has built energy efficiency into its products below. Give Klaus & Sons Heating & Air Conditioning a call at 909-982-5698 or set up an appointment online to find out more about adding a Lennox system to your home today.


* SEER, or Seasonal Energy Efficiency Ratio, measures the cooling efficiency of your air conditioner or heat pump. A higher SEER rating means greater energy efficiency and more savings for you and the environment.

** Annual Fuel Utilization Efficiency (AFUE) measures how efficient the appliance is in converting its fuel’s energy into heat over the course of a year.

  • Lennox Energy Efficient Air Conditioners
    At Klaus & Sons Heating & Air Conditioning, our Lennox® cooling products use an ozone-friendly, chlorine-free R-410A refrigerant that meets strict guidelines put forth by the U.S. Environmental Protection Agency (EPA). This refrigerant can help your equipment operate effectively, while lowering harm done to the environment.
  • Lennox Ultimate Comfort System
    Our Ultimate Comfort System is full of energy efficient and cutting-edge technologies that will adjust your heating and cooling temperatures in minor increments to keep a consistent temperature and a very small amount of energy.
  • Lennox: First Air Conditioner with 26 SEER Rating
    We sell the first air conditioner to achieve a 26 SEER* rating which means it’s one of the most efficient cooling systems you can find. Plus, the XC25 can substantially lower your monthly utility bills without sacrificing the cool temperatures you desire.
  • Reduce Utility Bills
    Living in Upland doesn’t have to bring on high utility bills. In fact, a variety of our HVAC products have earned the ENERGY STAR® label and high SEER* or AFUE** ratings because of their high efficiency levels that can potentially decrease your annual energy expenses.
  • Dual Fuel Systems
    Connecting our gas furnace with an electric heat pump creates a dual fuel system that helps increase your systems’ operation efficiency. The gas heat is solely used when it becomes too cold for the heat pump to run efficiently, which could help you save on your energy expenses and keep your home cozy.