TLDR

• METUS introduced the Residential Ducted Lossnay, a whole-home ventilation system that removes stale air and brings in filtered outdoor air while recovering up to 85% of heat to save energy.
• The system works with existing HVAC setups and includes features like CO2 and humidity sensors, app control, and supports better indoor air quality without wasting heating or cooling energy.
• Homeowners, contractors, and property managers benefit from improved air quality, easier system integration, and options for rebates and professional support during installation and maintenance.

On October 15, 2026, METUS launched the Residential Ducted Lossnay, a whole-home ventilation system designed to improve indoor air quality while saving energy. This system removes stale indoor air and brings in filtered outdoor air using balanced ventilation. It features a heat-recovery core that transfers heat between outgoing and incoming air, reducing the energy needed to heat or cool your home. Designed to work alongside existing HVAC systems, the Lossnay keeps fresh air flowing year-round without wasting energy.

Codes, permits, and incentives shaping adoption

Many areas follow ASHRAE 62.2, a standard that sets the minimum fresh-air rates required for homes. Before designing a ventilation system, check local rules to ensure compliance. Permits and system commissioning usually require proof that airflow meets specifications and that ducts are properly balanced. Because electrical wiring and controls are involved, hiring a licensed professional is important for safety and code adherence. Some states and utility companies offer rebates for installing heat recovery ventilators (HRVs) or energy recovery ventilators (ERVs). These incentives can lower upfront costs. It's also worth exploring programs linked to the Inflation Reduction Act (IRA), which may provide additional savings. Confirm available rebates and requirements in your area early in the project to maximize benefits and avoid surprises.

Who benefits and how to position the add‑on

Homeowners with airtight homes need controlled fresh air without opening windows. This system helps keep indoor air comfortable by reducing odors and moisture swings. Contractors should include ventilation in every replacement quote. Confirm airflow capacity—up to about 500 cubic meters per hour (around 295 cubic feet per minute)—along with filter types, control options, and duct layout compatibility. Property managers benefit from sensor-based controls and centralized ventilation units. These features help standardize indoor air quality across multiple properties and allow remote monitoring where available.

Inside the Lossnay: balanced flow and energy transfer

The Lossnay system uses a counterflow core to recover up to about 85% of heat from outgoing air. This means it transfers warmth or coolness from the stale air leaving your home to the fresh air coming in. This process reduces the extra work your heating or cooling equipment needs to do, saving energy and lowering costs. Optional sensors for carbon dioxide (CO2) and humidity measure indoor air quality and moisture levels. These sensors adjust the airflow automatically to match how many people are inside and how much moisture is present, keeping the air fresh and comfortable. Where available, the system connects to MELCloud, an app that lets you monitor and control ventilation from your phone. The app also helps you keep track of when to change filters and clean the heat-recovery core, ensuring the system runs efficiently over time.

What to do now: sizing, spec, and procurement

Homeowners can get quick sizing help to find the right ventilation system for their home. If you're unsure what you need, we can size the system for you in seconds using our easy tools. Contractors benefit from our fast, 2-click ordering process with live tracking, helping you get the gear you need without delays. When designing installations, aim for neutral pressure to avoid drafts, plan quiet duct runs, and ensure a proper path for condensate to drain safely. Property managers managing multiple buildings should book a Strategy Call to standardize product SKUs, delivery schedules, and filter replacement programs. This streamlines ordering and maintenance across your portfolio. For all customers, planning ahead on sizing, specifications, and procurement ensures smooth installation and reliable operation of the ventilation system.

Key Takeaways

• METUS’s Residential Ducted Lossnay system improves indoor air quality by exchanging stale indoor air with filtered outdoor air using balanced ventilation, reducing energy loss with its heat-recovery core.
• This ventilation system works alongside existing home HVAC setups, providing year-round fresh air without the energy waste of open windows, ideal for airtight modern homes.
• Contractors should include ventilation in replacement bids and verify duct layouts, airflow needs (up to 500 m³/h), filters, and controls to ensure compatibility and performance.
• Property managers benefit from centralized ventilation with sensor-based controls that can standardize air quality and allow remote monitoring across multiple properties.

Frequently Asked Questions

What is the METUS Residential Ducted Lossnay ventilation system?

It is a whole-home ventilation system that removes stale indoor air and brings in filtered outdoor air. It uses a heat-recovery core to transfer energy between outgoing and incoming air, reducing heating and cooling energy loss.

How does balanced ventilation benefit homeowners?

Balanced ventilation provides controlled fresh air without the need to open windows, which helps maintain indoor comfort and energy efficiency. It also reduces odors and moisture swings in airtight homes.

Can the Lossnay system work with existing HVAC equipment?

Yes, the Lossnay system is designed to run alongside your current HVAC setup. Contractors should check duct layout, airflow needs, and filter compatibility to ensure smooth integration.

Are there smart features included in the Lossnay system?

Some models offer optional carbon dioxide and humidity sensors that adjust airflow based on occupancy and moisture levels. Additionally, MELCloud integration allows app-based control and monitoring where available.

Related Topics: METUS Lossnay, whole-home ventilation, heat recovery ventilator, balanced airflow, indoor air quality, energy-efficient ventilation, HVAC ventilation systems, ducted ventilation, home comfort, HVAC parts, energy recovery ventilation, HVAC maintenance