Heat pump technology continues to evolve, and one of the most significant advancements is Enhanced Vapor Injection (EVI). This innovation dramatically improves performance in cold climates—but how does it work, and why should you care? Let’s break it down, with insights from Nulite’s industry-leading EVI heat pumps.

EVI Explained: The Cold-Climate Game Changer

Enhanced Vapor Injection (EVI) is a refrigerant cycle technology that boosts a heat pump’s heating capacity and efficiency in low temperatures. Unlike standard systems, EVI:
1.  Injects extra refrigerant vapor mid-cycle, increasing heat output.
2.  Maintains high COP (Coefficient of Performance) even below -15°C (5°F).
3.  Reduces defrost cycles, saving energy in icy conditions.

Think of it like a turbocharger for your heat pump!

Why EVI Matters for Your Home

Standard heat pumps struggle in freezing weather, but EVI models excel:

Nulite’s EVI Advantage: Built for Extreme Conditions

Our ArcticPro Series with EVI technology is engineered for reliability where it matters most:
1.  Dual-Stage Injection: Patented refrigerant control for 20% more heat output vs. standard EVI.
2.  R32/R290 Refrigerants: Eco-friendly and optimized for EVI cycles.
3.  Smart Adaptive Mode: Auto-adjusts injection pressure based on weather data.

*"After installing Nulite’s EVI system, our cabin stayed warm at -22°C—no backup heater needed!"*
– Verified Customer, Norway

Who Needs an EVI Heat Pump?

EVI is ideal for:
1.  Cold climates (regularly below -5°C).
2.  Mountain homes with extreme temperature swings.
3.  Energy-conscious users wanting to avoid expensive backup heating.

For milder climates, our standard inverter heat pumps (COP 5.0+) may be more cost-effective.

Nulite’s Commitment to Innovation

As one of the first manufacturers to commercialize EVI in residential units, we offer:
1.  10-year compressor warranty on EVI models.
2.  Hybrid EVI/Solar options to maximize renewable energy use.
3.  European-made reliability with global certifications (CE, ERP, TÜV).

Curious if EVI is right for you?
 Book a free consultation with our technical team today!

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