New improved heat pumps performance

STOP GLOBAL WARMING
Save energy and money

New Improved Heat Pump Performance

Pay attention to recent innovations in heat pumps. They are improving their performance, relatively to older models.

Back-up burners

Modern air heat pumps may be equipped with back up burners – instead of electric resistance heaters - to supplement the heat pump in situations of very cold temperatures. These burners are an economical and good solution to the limitations of air heat pump during cold weather, since they reduce the use of electricity. The combustion fuel used with back-up burners is usually propane or natural gas.

This type of system can be very advantageous comparatively to fuel-fired furnaces and common heat pumps.

Desuperheaters

Many high-efficiency ground heat pump have a desuperheater: a device that recovers waste heat (from the heat pump's cooling mode) in order to use it to heat water. A desuperheater-equipped pump heats water 2 to 3 times more efficiently than common electric water heaters.

Two speed compressors

Modern two-speed compressors heat pumps do not need to operate at full capacity – they just have to work close to the capacity that is needed at particular situations – which is an important energy saving element and contributes to a longer life of the compressor. Besides, these systems are particularly suitable to zone control systems – systems based on automatic dampers in order to achieve different temperatures in different rooms.

Scroll compressors

Recent advances in heat pump technology includes scroll compressors - two spiral-shaped scrolls - instead of common piston compressors. Scroll compressors make the engine to run quieter, to have a longer lifetime and to provide higher temperatures when in the heating mode: 10°–15°F more (5°–8°C).

Variable-speed fan motors

Modern heat pumps may be equipped with dual-speed motors and variable-speed outdoor fans and blowers (indoor fans). These fans may be controlled in order to achieve electrical savings.