When a Bosch Multizone Heat Pump Soundly Beats a Natural Gas Furnace in Montréal

A modern, eco-friendly, and high-performance HVAC solution to replace a traditional heating system

In a residential neighborhood in Montréal, a homeowner wanted to replace their old natural gas furnace, which had become costly to operate, noisy, and energy inefficient over the years. After a thorough assessment of their needs, we recommended a Bosch BOVA multizone heat pump, paired with a Bosch BVA indoor system — a highly effective combination. This project perfectly illustrates the transition from a traditional system to an eco-efficient, reliable, and quiet solution, showcasing all the advantages of a well-designed multizone installation.

Why Replace a Natural Gas Furnace in Montréal?

Montréal's harsh winters require efficient heating systems, but rising natural gas prices and growing environmental awareness are pushing more and more homeowners to seek more economical and sustainable solutions. Among the key reasons behind this change:

High energy costs related to gas use
An uneven and noisy heat distribution system
No integrated cooling during the summer
An aging unit with little zone temperature control

At AirGreen, we guided this client through the transition toward a high-efficiency multizone heat pump, prioritizing performance, reliability, comfort, and energy savings.

System Selection: Bosch BOVA + BVA with R-410A Refrigerant

For this project located in the Rosemont–La Petite-Patrie borough of Montréal, the homeowner needed to heat and cool three separate zones of their home: the main floor, the upper floor, and a newly finished sunroom. We proposed a Bosch BOVA 36,000 BTU multizone system, a powerful and quiet outdoor unit, paired with three Bosch BVA wall-mounted indoor units.

Technical Specifications:

Brand: Bosch
Outdoor Unit Model: BOVA-36HDN1-M20G
Indoor Unit Models: BVA-12WN1-M20
Total Capacity: 36,000 BTU
Number of Zones: 3
Refrigerant: R-410A
SEER: 20+
HSPF: 10+

Installation Process: Expertise, Adaptation, and Efficiency

The installation was completed in two full days, with careful planning to avoid major disruptions to the client’s daily routine.

Key Project Phases:

Safe removal of the old natural gas furnace, including professional sealing of the gas line.
Thermal analysis of each zone to optimize climate distribution.
Outdoor installation of the Bosch BOVA heat pump on a raised concrete base with anti-vibration mounts.
Routing of refrigerant lines with discreet placement, insulated ducts, and precise slopes to avoid efficiency loss.
Connection of the three Bosch BVA indoor wall units, with strategic placement to maximize coverage in each area.
System configuration and testing with custom settings for each zone.
Client education on how to use the system optimally, preventive maintenance, and maximizing energy savings.

Immediate Benefits for Our Client in Montréal

Since the system went live, our client has noticed a drastic reduction in monthly energy bills, along with unmatched comfort throughout the home. Key benefits observed include:

Energy savings: up to 40% reduction in annual heating costs
Personalized comfort: independent temperature control in each zone
Whisper-quiet operation: Bosch units are renowned for their silent performance
Sleek design: no visible piping, clean and discreet installation
Eligible for the LogisVert grant: $2,300 recovered through the Hydro-Québec program

Why Choose a Bosch Multizone Heat Pump?

The Bosch BOVA multizone model is perfectly suited for Greater Montréal homes, especially when replacing a centralized furnace system. Unlike a central heat pump that uses a single control point, a multizone solution offers:

Flexible layout options
Better energy control per room
Significant reduction in energy waste
Faster installation that is often less invasive

An HVAC Solution Focused on the Future

This project is just one example of how many Montréal homeowners are moving away from natural gas heating in favor of sustainable and high-performance HVAC solutions. With our expertise in multizone heat pump installations, we support this transition in a way that is safe, cost-effective, and long-lasting.

At AirGreen, we strongly believe that the multizone heat pump is the way forward, especially as energy efficiency becomes a collective priority. We ensure that every installation is customized, optimized, and durable, with constant attention to customer satisfaction.

Summary of Key Project Highlights:

Full replacement of a natural gas furnace with a multizone heat pump
Bosch BOVA-BVA system, 36,000 BTU, 3 zones
Fast, meticulous installation in a single-family home in Montréal
Superior thermal comfort, with built-in cooling
Energy savings and reduced carbon footprint
Eligible for Hydro-Québec’s LogisVert grant

Thinking About Replacing Your Old Heating System?

AirGreen is your trusted HVAC partner for any conversion, upgrade, or energy optimization project. Whether you’re in Montréal, Laval, Longueuil, the North Shore, or the South Shore, our team brings unmatched expertise in installing wall-mounted, central, and multizone heat pumps.

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