FURNACES

FURNACES

What is the best furnace for your home?

Today, there are a ton of different options to pick from when selecting a new furnace. Nearly all brands offer the same features, use similar terms, and the same technology. We will make the process as simple as possible for you by saving you time researching and learning about it all. Since we don’t work on commission, we can eliminate the sales and marketing terms, explain how it all works, and help you make the best decision.

Call us today for a free consultation and estimate. We will recommend the best solutions for your home, and help answer any questions you have along the way. For more information about what different features or terms are, please see the FAQ below.

Furnace FAQ
furnace

Exclusively selling York HVAC products.

York, under the parent company of Johnson Controls, is by far the best equipment supplier available in Rochester. They allow us to provide some of the best warranties in the business, a phenomenal product (still built in the U.S.A.), and provide us with parts for equipment well beyond 30 years old.

We offer the full range of York furnaces, and will help you decide which is best for your needs.

York Heating >

Standard Efficiency Furnace Options

Most Common Standard Furnace: TM8X

York TM8E

80%AFUE
  • Single stage gas valve
  • High efficiency ECM blower – standard
  • Warranty: lifetime heat exchanger, 10 yr. parts
  • 5 yr. Complete Assurance

York TM8Y

80%AFUE
  • Two stage gas valve
  • High efficiency ECM blower – standard
  • Warranty: lifetime heat exchanger, 10 yr. parts
  • 5 yr. Complete Assurance

York TM8V

80%AFUE
  • Two stage gas valve
  • High efficiency ECM blower – variable
  • Warranty: lifetime heat exchanger, 10 yr. parts
  • 5 yr. Complete Assurance

High Efficiency Furnace Options

Most Common High Efficiency Furnace: TM9Y

York TM9Y

96%AFUE
  • Two stage gas valve
  • High efficiency ECM blower – standard
  • Warranty: lifetime heat exchanger, 10 yr. parts
  • 5 yr. Complete Assurance

York TM9V

96%AFUE
  • Two stage gas valve
  • High efficiency ECM blower – Variable
  • Warranty: lifetime heat exchanger, 10 yr. parts
  • 5 yr. Complete Assurance

York YP9C

98%AFUE
  • Modulating gas valve
  • High efficiency ECM blower – Variable
  • Warranty: lifetime heat exchanger, 10 yr. parts
  • 10 yr. Complete Assurance

Common questions and info about different furnace features and options.

Click / tap on the boxes below to expand.

What is a single stage, two stage or modulating furnace?

Furnaces (regardless of whether or not they are standard or high efficiency) are available in single stage, two stage, and fully modulating configurations. But what does this actually mean? With a natural gas furnace, this is referring to how the valve that controls the flow of natural gas to the appliance operates, and how it affects the comfort level in your home.

Single Stage Furnaces – These furnaces should be familiar to most people, and are how most furnaces have operated for decades. Single stage just means that your furnace is on or off. The gas valve is either opened or closed, creating heat or not. It’s that simple! Typically, this allows for a degree or so of temperature fluctuation in your home as the thermostat has to drop, call for heat, then the furnace comes on at full fire, brings it up to temperature, and shuts back down.

Two Stage Furnaces –  These models are very similar to a single stage units, but think of them as having a ‘high’ and a ‘low’ fire mode. When the thermostat tells the furnace that your home needs heat, it will kick on in a low fire mode, which uses less gas, and creates less heat. If the system realizes that this is not enough heat it will adjust the timing of when it needs to switch to its high fire, full on mode, and ramp up. The idea here is that unlike the single stage models, this unit will have a smaller temperature swing in your home, increasing comfort levels. Typically, these units do not cost much more than single stage units and the benefits can be noticeable.

Modulating Furnaces – These take the two stage concept up a level. All this means is that instead of a high and low fire mode, the gas valve is fully variable (meaning it has an even greater range of options). This is often marketed as the most comfortable option (referring to temperature fluctuation within the home). This is all well and good, but we really don’t sell these models unless they are specifically requested. The reason for this is simple, the cost vs. benefit does not usually make sense. Modulating furnaces are a huge leap up in price (unlike the gap between single and two stage models) for a much smaller increase in comfort. 

What is a multi-speed or variable-speed furnace, and how does that relate to ECM or PSC drive?

The blower (fan) motor in your furnace is responsible for pushing hot or cold air through your home. It is part of the furnace, but it is used for both heating and air conditioning functions.

ECM and PSC – What’s with all of the acronyms? These are easy ones really, ECM motors are mandatory in all new furnace based on government regulations, and this is good! Old furnaces used incredibly inefficient PSC motors. The new ECM motors are simply more efficient, more effective, and more intelligent. This all leads to a drop in your electricity bills. At the end of the day, you don’t need to worry about picking one or the other, since any new furnace will now have an ECM drive motor.

Multi-Speed Furnace– When referring to blower motors in a furnace this just means there are a number of speeds that a technician can select on your motor. Ideally, this will be based on the pressures and temperatures measured in your home during the installation process, not guess work. Once set, the furnace will always use the speeds that are selected. This is how blower motors have worked for decades, and is no different with the new ECM motors. This is very common, extremely efficient, and very comfortable when properly set up by a qualified installer.

Variable-Speed Furnace – All this means is that the blower motor can adjust the fan / air speed in your home on a variable scale, based on demand for hot or cold air. The idea (just like with stages in the above section) is to create a greater level of comfort. Just like with modulating gas valves, we don’t think the cost vs. the benefit is there with this option. These furnaces typically cost quite a bit more to install, and the benefit isn’t really noticeable. It’s more or less marketing hype, and a way to make more money if you work on commission. A properly adjusted multi-speed furnace will accomplish a phenomenal comfort level with great reliability.

What is a high efficiency (AFUE) furnace compared to a standard furnace?

There are a few differences to be aware of when deciding between a high efficiency and standard efficiency furnace, if you have the option of being able to decide. The obvious difference is… their efficiencies!

Furnace Efficiency (AFUE) – Standard models utilize 80% of the natural gas that they consume to actually heat your home, the other 20% is essentially wasted via exhaust. High efficiency furnaces from York utilize 95.5% to 98% depending on the model.

Exhaust Ventilation – For the most part, in the Rochester area, standard efficiency furnaces are vented through your chimney via a metal pipe. High efficiency furnaces are a bit different though. They are vented through PVC (plastic) pipes that will typically exit through the side of your home. Location for this exhaust exit is critical, and unfortunately we see a lot of installers mess this up. Getting this wrong can cause major reliability / no heat issues, and can also violate actual safety regulations.

Water / Condensation – Standard furnaces have no water / drainage to worry about. Any drainage you have in a system like this would strictly be from the air conditioning system. High efficiency furnaces generate condensation in their exhaust, which is actually acidic. This must be drained safely away from the furnace. If a drain is not available, a pump must be installed as well. This isn’t a big deal, but it is just something to know.

Which furnace makes sense in Rochester?

While subjective, this graph helps to quickly illustrate the points made above. Since we don’t work on commission, we don’t need to push you into the most expensive furnace possible.

Single stage furnaces are great for a lot of people. Then for a small amount more in terms of cost, you gain a lot of benefit by going to a 2 stage furnace. Beyond that, variable and modulating furnaces will cost a lot more to install, just to gain a small increase in perceived comfort.

Price vs. Benefit

HVAC Installation quality.

Selecting the right furnace is just part of the equation. Efficiencies and ratings mean nothing without proper installation by an experienced technician.

At Mendon Heating and Cooling, we take the time to do things right. Anyone installing your furnace will have over 10 years of experience in the trade. This is not something that can be replicated in a classroom or self titled university. To learn more about this process, please see the link below.

Learn more >

Our HVAC installations near Rochester, NY.