What is the major advantage of modulating gas valves?

There are many advantages to having a furnace with a modulating gas valve which will be discussed below, but lets start off with a brief description of what a modulating gas valve is. A modulating gas valve has the ability to vary the gas input to match the heat loss of your home at any given point in time. When a furnace is properly sized for you home, it is designed so that it has enough output to keep up with the demand of the thermostat on the coldest of days. But on milder days, you really do not require the same output from your furnace as you would on the coldest of days and that is where the modulation of the gas valve offers some advantages.

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Gas Valve Advantages

1. Comfort: On a milder day, if your furnace would provide 100% of its available output, your furnace would meet the thermostat set point rather quickly and then shut off. Lack of run time is one of the main reasons you feel warm and cold spots in your home, the air does not have enough time to circulate leaving some rooms warm and some rooms cool. If your burner could turn itself down, it would take a longer period of time to reach thermostat set point allowing for the fan to circulate this warm air for longer periods and reduce the hot or cold areas of your home. You may never recognize these longer run times because the furnace is one of the quietest manufactured today
2. Efficiency: A lower gas input running for a longer period of time promotes energy efficiency. Just like with your car, starting and stopping as in city traffic will cause a higher usage of fuel, the same applies to your gas furnace, allowing a long steady run time is more energy efficient than starting and stopping many times over the same time period. Additionally, as motors start, they consume the greatest amount of energy and any furnace made after has not only a blower motor, but also a draft motor which must start. So longer run times will not only lower your gas bill, but your electric bill as well.
3. Longevity: As with any mechanical equipment, the more you start and stop it the greater the wear it will experience. Every time your furnace cycles, the igniter will glow bright orange to start the burner. The excessive heat generated by the igniter may cause it to fail after many cycles. Additionally, when a motor starts, that is the point it draws the greatest amps which puts stress on the motor winding&#;s which can cause failure over time. Of course at every start of every heating cycle, the gas valve must electronically open putting wear on it&#;s solenoid.

At RJ Kuhn in Oswego, IL., we not only want you to be as comfortable as possible, we also want to make sure you do it efficiently and get the longest life possible out of your heating equipment. Call us today to so we can throughly explain the advantages of a new Carrier Infinity furnace and get you the comfort, efficiency and peace of mind you deserve.

Advantages of Modulation: Modulating vs. Single and Two-Stage Furnaces

Purchasing a new furnace is a big step, and the choice can either cost you extra over time or save you energy and money. Because of this, it&#;s important to be in the know about the latest offerings in home-heating technology so you can find the system that best suits your needs. A modulating furnace is a great example, providing both energy and cost savings that will give homeowners the ultimate peace of mind.

What is a Modulated System?

Modulation technology allows a furnace to create just the right amount of heat inside your home, keeping the temperature balanced and comfortable. When your home reaches the set desired temperature, the modulating furnace will adjust in slight increments to maintain that temperature using variable-speed blowers and modulating gas valves.

Too often, rooms feel almost freezing when the air conditioner is on or they become too warm due to indoor humidity, often the primary cause of indoor heating issues. Designed to combat this issue, modulation technology slightly adjusts its output to decrease temperature swings and RH levels throughout the house&#;all while using the lowest possible setting. This way, you can enjoy a precise set temperature and save on energy costs.

Other types of furnaces commonly offered for households include single-stage and two-stage furnaces:

Single-Stage Furnace: This type of furnace is always either running at its highest speed of operation, using the highest energy levels and pushing out the hottest air, or it is turned completely off (not running). Essentially, a single-stage furnace only has one &#;on&#; setting.

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Two-Stage Furnace: These furnaces are similar in nature to single-stage, but have two &#;on&#; settings: full and reduced speed. This allows air to move at a higher or lower power based on your temperature needs.

In comparison, a modulating furnace goes beyond a two-stage furnace and can have dozens of &#;on&#; settings. A modulating furnace begins at full speed, and once your house is sufficiently warm adjusts its settings in slight increments to change the amount of heat being put out. This method is more efficient and budget-friendly and ensures your home stays within one to two degrees of the desired temperature throughout the entirety of your day.

Benefits of Modulation

Homeowners can gain several benefits from higher efficiency systems like modulation that will save on time, trouble, and money down the road.

• Comfort &#; With a modulating furnace, you can reach the set temperature point that you prefer and easily maintain that point. Hot and cold spots will no longer be a recurring issue throughout the house, and you can sleep comfortably with less noise and temperature swings throughout the night.
• Reliability &#; Heating system components tend to last longer under a modulating furnace since the low-speed settings put less wear and tear on the equipment. Unlike Single- or Two-Stage furnaces, modulating furnaces have the ability to rein themselves in and operate on lower energy levels.
• Energy and Cost Savings &#; Modulating furnaces are one of the most cost-efficient options on the market, saving a significant amount of both energy and money. A modulating furnace uses less energy than standard furnaces since it is not operating at 100% capacity when it cycles on and off.

Modulating furnaces provide the comfort and efficiency needed in every home, making them a worthwhile investment. Ask a qualified technician to help you find the best option the next time you are looking at heating systems.

Read Next: Understanding Temperature and Humidity Control with a Modulating HVAC System

Are you interested in learning more about modulating valves? Contact us today to secure an expert consultation!