Cold Climate Heat Pumps: Technology, Performance & Future Developments

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Can heat pumps work in cold-climates? Yes, they can... Learn more

These systems efficiently perform in low temperatures, using improved refrigerants, variable-speed compressors, enhanced vapor injection, and smart defrost controls.

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Let’s explore how they work in cold weather

Refrigerant

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Variable-speed

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Vapor injection

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Electronic expansion valves (EEV)

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Cold Climate Heat Pumps: Technology, Performance & Future Developments

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These systems efficiently perform in low temperatures, using improved refrigerants, variable-speed compressors, enhanced vapor injection, and smart defrost controls.

Let’s explore how they work in cold weather

Refrigerant

New heat pumps with R-410A refrigerants absorb more heat from cold air and carry more heat per unit volume due to their higher vapor density and lower boiling point, increasing efficiency.

Variable-speed

Inverter-driven cold-climate heat pumps adjust compressor and fan speeds based on heating demand, maximizing efficiency and boosting heating capacity in cold weather.

Vapor injection

Some cold-climate heat pumps use enhanced vapor injection to cool the compressor and increase mass flow, heat absorption and speed, without overheating.

Electronic expansion valves (EEV)

Valves offer accurate refrigerant flow metering, allowing the system to deliver more liquid refrigerant to the evaporator without flooding the compressor.

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