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Last Revised: 10/10/25
Have you noticed your energy bills rising as your home’s heating and AC systems age? Are you looking for a system that’ll keep your family comfortable year-round, but want to be sure you invest in the right one?
Replacing your HVAC system can be overwhelming. But at Mattioni, we make things simple by giving you all the information you’ll need to make the right call for your home.
In this article, we’ll dive into one of the most reliable heat pump models available: the York YH5 Heat Pump Series. You’ll learn:
- What the YH5 is and how it fits into York’s product lineup
- Why homeowners choose it over other options
- What you need to consider before saying yes to this system
- Who it’s best suited for – and who might want to look at alternatives
By the end you’ll know how to decode model codes, efficiency ratings and more, so that you can make a confident decision to preserve your peace of mind. Let’s start by breaking down what you’ll see in the York YH5 model names.
Understanding York’s Model Numbers: Decoding What They Mean
If you’ve received a proposal or are researching your options, you might see models listed like YH524E2S11. That might look more like a WiFi password than a product at first glance, but it actually tells you quite a bit.
Here’s a breakdown of what each part of YH524E2S11 means.
- YH5 = York Heat Pump Series 5 (this tells you it’s a heat pump in the LX family)
- 24 = 24,000 BTUs (2 tons of heating and cooling)
- E2 = Engineering and efficiency version/generation code (less significant for the homeowner)
- S11 = Specifics about voltage, cabinet design, and factory configuration (less significant for the homeowner)
When you see how each portion of York’s model names signifies a quality of that system, understanding what that system has to offer becomes simpler.
YH5 (LX family for two-stage heat pumps) 24 (2 tons) E2 (engineering gen2) S11 (style code)
How the YH5 Series Fits into the York Product Line
York organizes its HVAC systems into several product families. The YH5 Series is part of York’s LX family of heat pumps.
- “LX” is York’s name for its mid-tier residential product line, offering solid performance and reliability at a more accessible price point than their Affinity line.
- “YH5” is the series name within the LX family for two-stage heat pumps using R-454B refrigerant.
- YH5 = York Heat Pump Series 5 (LX family, two-stage, R-454B)
So, when you see YH5 24 E2 S11, you’re looking at a 2-ton LX Series Heat Pump from the YH5 product line – offering to-stage comfort, modern refrigerant, and reliable performance for most homes.
What Is the York YH5 Series Heat Pump?
The YH5 Series is a family of two-stage heat pumps manufactured by York, designed for residential homes that want efficient year-round heating and cooling. These units operate using the environmentally friendlier R-454B refrigerant, which meets evolving EPA standards.
The YH5 Series comes in a range of capacities – typically from 2 to 5 tons – and is compatible with a variety of indoor coils and air handlers. These units are ENERGY STAR certified, with efficiency ratings of 15.2 SEER2 and 7.8 HSPF2 depending on size and configuration.
Each YH5 heat pump features a two-stage scroll compressor, meaning it can operate in a low or high mode depending on how much heating or cooling your home needs. That helps improve indoor comfort, reduce energy use, and minimize noise.
Why Do Homeowners Choose the YH5 Series?
Homeowners don’t just want heating and cooling – you want year-round, reliable comfort without surprises on the energy bill or loud systems that cycle on and off all day. The York YH5 Heat Pump stands out because it offers meaningful comfort enhancements without jumping to premium pricing.
Two-Stage Operation = More Stable, Less Noisy Comfort
What does a two-stage compressor mean for you? It allows the system to run at a lower capacity most of the time. Instead of turning on full-blast every time your thermostat calls for heating or cooling, it can operate in a low-speed mode for longer periods. Here’s why that’s a big deal:
- You’ll feel fewer temperature swings
- The system operates quieter
- There’s more even airflow throughout your home
- The system encounters less wear and tear
If your current system causes hot-and-cold spots in your home, or if it’s loud enough to disrupt conversations or sleep, you’ll notice big improvements by upgrading to the two-stage YH5 Heat Pump.
A Smarter Environmental and Regulatory Choice
This heat pump series uses R-454B, a refrigerant with significantly lower global warming potential (GWP) than R-410A or older systems like R-22. This means the YH5 Series isn’t just compliant with new EPA standards – it’s ahead of the curve. You’re choosing a system that aligns with future regulations, not just today’s.
That can matter for resale value, long-term serviceability, and avoiding costly refrigerant phase-out issues down the road.
Dependability Backed by a Trusted Brand
York is based in the U.S. and has a long history in manufacturing residential HVAC systems. The YH5 Series of York Heat Pumps is part of its LX product family, known for reliability and value. That means if service or repairs are ever needed, parts and support are easier to access. You’re not buying into a niche brand or system that could be challenging to maintain later on.
A Comfortable Upgrade Without Premium Pricing
You don’t have to spend top dollar to get noticeable improvements in home comfort and system performance. The YH5 Series provides a strong middle ground – better comfort than single-stage models, quieter and more efficient, and environmentally responsible – without the price tag of a high-end variable-speed system.
What Should You Know Before Choosing An HVAC System?
Every HVAC system has its strengths and trade-offs. The York YH5 Series is an excellent option for many homeowners – but it’s important to understand what goes into any HVAC system decision.
Proper Installation Often Matters More Than the Model
The best-performing equipment in the world can fall short if it’s not sized, installed, and configured correctly. For the YH5 to deliver what it’s designed for, it must be:
- Matched with the right indoor coil or air handler
- Installed with proper refrigerant line sizing and charge
- Support by ductwork that allows for proper airflow
Your heat pump investment is only as good as how it’s hooked up, so balancing installation quality with pricing is essential to maximizing long-term value.
Not All Rebates Are Guaranteed
The YH5 Series is ENERGY STAR certified, which can qualify it for utility rebates in some areas. However, some rebate programs require higher SEER2 ratings, especially if you’re aiming for state-level incentives and tax credits.
During your consultation with Mattioni, we’ll show you:
- What rebates you’re eligible for
- Whether other systems would return more cost savings over time
- And how to factor that into your budget
Rebates can help – but they shouldn’t be the only reason you choose a system. We’ll help you balance upfront cost, long-term savings, and comfort priorities.
Thermostat Compatibility Matters More Than You Think
Because the YH5 Series is a two-stage system, pairing it with a smart thermostat that can control both stages is the most effective way to unlock its full comfort and efficiency benefits. If you’re upgrading from a single-stage system and keeping your existing thermostat, it may only signal one stage – and the system won’t perform to its optimal design.
At Mattioni, we’ll assess your current thermostat controls and, if needed, recommend a compatible thermostat that supports both stages of operation and offers modern features that can optimize the YH5 Heat Pump’s performance. It’s a small but important detail that makes a big difference in day-to-day comfort and energy costs.
Like Any HVAC System, It Needs Annual Maintenance
The YH5 is built to run efficiently and last for 12+ years, but it needs regular service to do so. An annual inspection will allow the heat pump to maintain its performance and efficiency by:
- Cleaning coils
- Changing filters
- Checking refrigerant charge and electrical connections
- Inspecting burners and gas valves
- Verifying stage operation and airflow
At Mattioni, we offer VIP maintenance memberships to make this easy. With a VIP membership, you’ll receive:
- Two pre-scheduled tune-ups per year
- Priority service
- Discounts on repairs
Enrolling in a plan ensures your system performs like it should, season after season – without the hassle of remembering to book service.
Who are YH5 Series Heat Pumps a Good Fit For?
The YH5 Series is a great match for homeowners who want:
- A system that’s more comfortable and efficient than entry-level models
- A modern refrigerant that meets environmental standards
- A quieter, more stable indoor temperature experience
- Balanced performance without premium pricing
- Flexible configuration with electric or dual-fuel backup
Who Should Not Choose a YH5 Series Heat Pump?
This system may not be the best option if:
- You live in a very cold climate where temperatures consistently drop below 10°F
- You’re pursuing maximum rebates through high-efficiency incentives
- You have complex airflow needs that require a custom control solution
In those cases, we’ll walk you through alternatives – no pressure, just options.
What to Ask Your HVAC Professional Before Choosing a YH5 Series Heat Pump
- Will this system fully heat my home in winter – or do I need a backup?
- Is it matched with the right indoor equipment and duct system?
- What thermostat do I need to unlock all features?
- Will I qualify for rebates – and are they worth the upgrade?
- What’s the maintenance plan I need to protect my investment?
Frequently Asked Questions About the YH5 Series
Q: How long will this system last?
A: With regular maintenance, 12-15 years is a typical lifespan.
Q: Is it compatible with smart thermostats?
A: Yes, it works with a wide range of smart and programmable thermostats.
Q: Is this system noisy?
A: Not at all, the lower stage of operation allows it to primarily run quietly for long stretches of time.
Is the YH5 Heat Pump Right for Your Home?
The York YH5 Series Heat Pump is a reliable, balanced, and forward-thinking heat pump – but the only way to know if it’s right for your home is to consult with a professional. Your HVAC expert will be able to evaluate your home and assess which system is best suited to match your home’s needs.
At Mattioni, we don’t believe in guesswork. We take the time to answer your questions and make sure you’re educated enough to make a confident decision for your home’s comfort. And we’ll help you make that decision with honesty and transparency every step of the way.
Your next step? Schedule your consultation today by calling our friendly staff at (610) 400-8510 or by booking online.
