Call your Vancouver furnace installation experts at Milani Plumbing, Drainage & Heating to help you decide on the furnace right for your home. We offer FREE on-site estimates to install your new natural gas high-efficiency furnace. Upgrading your heating system to a high-efficiency furnace will increase your quality of comfort AND reduce your energy bills by up to 39% per year*.

The efficiency of a furnace is measured by the Annual Fuel Utilization Efficiency (AFUE) which is commonly expressed in percentages. Furnaces are categorized by how they operate and distribute heat throughout your home; your furnace may be categorized as:

Single Stage Furnace

The gas flame is either ON or OFF. The furnace waits until the temperature in the house gets cold to send a powerful flow of warm air to heat up the house. Once the temperature reaches the desired level, the thermostat shuts the system down and restarts the cycle.

Single stage furnaces are the least efficient systems in terms of energy, but they are the lowest cost to purchase.

Two-Stage or Dual-Stage Furnace

This type of furnace keeps the flame “on/high”, “on/low” or “off”. By adding this second flame the system makes a dramatic difference in energy cost. Dual-stage furnaces are quieter and slightly higher in cost.

Modulating or Variable Furnace

This is the most comfortable gas furnace you can buy. A modulating furnace will prevent the temperature fluctuations typical of single- and dual-stage furnaces that leave some rooms with cold spots where the heat doesn’t last between furnace cycles or hot spots where heat builds up. You will also avoid the periods of cold before the furnace kicks back on. A modulating furnace automatically makes slight continual adjustments, offering you consistent, comfortable temperatures throughout your home and operates more quietly and efficiently than other kinds of gas furnaces.

Variable gas furnaces are the most energy efficient furnace with 98% AFUE.

In the illustration below, compare the efficiency levels of a single-stage, dual-stage and modulating furnace when you set your home temperature to 72 degrees Fahrenheit.

Combi Water Heater & Furnace

Combining the utility of a tankless water heater into a forced air system offers one of the most efficient systems on the market. Combination water heater furnaces can feed hot water to your water fixtures while heating your home. This dual function appliance is both simple to install and has a small footprint. If you’re looking for system that will reduce your energy bills and increase the space in your utility room, book a free estimate for a Combi Water Heater & Furnace in your home.

Combination Water Heater Furnace

Target Temperature: 72°F

Furnace efficiency graphic

Repair or Replace?

Still not sure if you should replace your old broken furnace or just repair it?

Follow the 50% Golden Rule: “If your furnace repair costs exceed 50% of the heating system’s value, then you should buy new equipment.”

*According to Lennox Energy Savings Calculator.

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