Bosch Systems We Offer and What They Can Do!
- Airtech Heating & Cooling

- Nov 7
- 3 min read
When it comes to choosing a high-efficiency heat pump, there’s more to think about than just SEER ratings. While SEER is important, the real benefits of modulating technology go far beyond energy numbers. Let’s break down why, and take a closer look at the Bosch M15, M20 Premium, Ultra 19, and Mini-Split systems to see what makes each one stand out.
🌡️ Why Modulating Systems Matter More Than SEER
Modulating systems don’t just turn on and off — they adjust their capacity automatically to match YOUR home’s heating or cooling needs in real time. That means:
Quieter operation, both inside and out
Better humidity control, keeping your home comfortable even on muggy days
More consistent temperatures from room to room
Fewer refrigerant leaks, since the system isn’t constantly expanding and contracting
Longer equipment life, because it avoids the stress of frequent starts and stops
So, while SEER ratings look great on paper, the comfort and durability you get from a modulating system are the real everyday benefits.
⚙️ The Bosch M-Series Lineup
Bosch’s M-Series systems are designed to deliver comfort and efficiency in a range of applications — from standard setups to fully zoned, smart-controlled homes.
M15
The M15 is Bosch’s solid, value-focused modulating heat pump.
It doesn’t have Bluetooth or the EasyAir app connection found in higher models.
Still, it modulates to match your home’s load, making it ideal for zoning setups.
Operating range:
Cooling: 40°F to 120°F
Heating: +5°F to 86°F
Available in 2, 3, and 5-ton sizes.
Many configurations qualify for Energy Star Cold Climate Heat Pump (CCHP) rebates.
It’s a great balance of performance and affordability for homeowners who want efficient comfort without all the bells and whistles.

M20 Premium
Step up to the M20 Premium, and you’ll notice the difference immediately.
Bluetooth connectivity and EasyAir app come standard.
It modulates from 30% to 120% capacity, giving smoother temperature control and higher efficiency.
2-wire communication between the air handler and heat pump simplifies installation.
Operating range:
Cooling: 15°F to 125°F
Heating: –4°F to 86°F
All sizes qualify as Energy Star Cold Climate systems, and the 3-ton model even qualifies as a standalone unit when paired with a 2- or 4-ton coil.
If you’re looking for top-tier efficiency and control, with modern connectivity built in, the M20 Premium is the sweet spot.

Ultra 19
The Ultra 19 is the heavy hitter of the lineup.
Fully modulating from 26% to 130%, it offers the widest operating range and highest heating output.
Includes Bluetooth, works with a standard 24V thermostat, and still supports 2-wire communication.
Operating range:
Cooling: 15°F to 125°F
Heating: –13°F to 86°F
Available in 5-ton only, but this model can handle serious performance demands.
Qualifies for Cold Climate rebates both as a full system and in some standalone pairings.
For larger homes or colder climates, the Ultra 19 delivers unmatched comfort and performance, even when temperatures dip into the negatives.

❄️ Bosch Mini-Splits — Small Systems, Big Versatility
Not every space calls for a full-size heat pump. Bosch’s mini-split systems offer flexibility and cold-climate performance in compact, efficient packages.
Single-zone systems: 9,000 to 24,000 BTU
Cold Climate Certified down to –13°F and –22°F, with a $400 city rebate available
Multi-zone systems: Most models are also CCHP certified
All Bosch mini-splits cool down to the same temperature they heat, making them perfect for server rooms or computer areas
💡 The Bottom Line
Whether you’re upgrading an older system or designing comfort for a new home, Bosch’s modulating heat pumps offer more than just energy savings. They deliver quiet comfort, year-round consistency, and reliability that stands the test of time.
From the dependable M15 to the powerful Ultra 19, and all the flexible mini-splits in between, there’s a Bosch system built for every home and every climate!






Comments